* [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023
@ 2023-11-16 13:01 Tobias Burnus
2023-11-16 19:30 ` Harald Anlauf
2023-11-17 3:38 ` [Patch] Fortran: Accept -std=f2023 support, " Jerry D
0 siblings, 2 replies; 9+ messages in thread
From: Tobias Burnus @ 2023-11-16 13:01 UTC (permalink / raw)
To: gcc-patches, fortran
[-- Attachment #1: Type: text/plain, Size: 1306 bytes --]
This adds -std=f2023, which is mostly a prep patch for future changes.
However, Fortran 2023, https://j3-fortran.org/doc/year/23/23-007r1.pdf changes two things which is taken
care in this patch:
(A) In "6.3.2.1 Free form line length":
Fortran 2018: "If a line consists entirely of characters of default kind (7.4.4), it shall contain at most 132 characters"
Fortran 2023: "A line shall contain at most ten thousand characters."
(B) In "6.3.2.6 Free form statements":
Fortran 2018: "A statement shall not have more than 255 continuation lines."
Fortran 2023: "A statement shall not have more than one million characters."
I have not added a testcase for exceeding the latter but otherwise there are new
tests and I had to add a couple of -std=f2018 to existing tests.
Comments, suggestions, approval?
Tobias
PS: I find it funny that -std=c23, -std=c++23 and -std=f2023 will get added in the same GCC release.
PPS: I did not bother adding .f23 as file extension; I believe that also .f18 is unsupported.
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[-- Attachment #2: std-f2023.diff --]
[-- Type: text/x-patch, Size: 152253 bytes --]
Fortran: Accept -std=f2023 support, update line-length for Fortran 2023
This patch accepts -std=f2023, uses it by default and bumps for the
free-source form the line length to 10,000 and the statement length
alias number of continuation lines to unlimited.
gcc/fortran/ChangeLog:
* gfortran.texi (_gfortran_set_options): Document GFC_STD_F2023.
* invoke.texi (std,pedantic,Wampersand,Wtabs): Add -std=2023.
* lang.opt (std=f2023): Add.
* libgfortran.h (GFC_STD_F2023, GFC_STD_OPT_F23): Add.
* options.cc (set_default_std_flags): Add GFC_STD_F2023.
(gfc_init_options): Set max_continue_free to 1,000,000.
(gfc_post_options): Set flag_free_line_length if unset.
(gfc_handle_option): Add OPT_std_f2023, set max_continue_free = 255
for -std=f2003, f2008 and f2018.
gcc/testsuite/ChangeLog:
* gfortran.dg/goacc/warn_truncated.f90: Add -std=f2018 option.
* gfortran.dg/gomp/warn_truncated.f90: Likewise.
* gfortran.dg/line_length_10.f90: Likewise.
* gfortran.dg/line_length_11.f90: Likewise.
* gfortran.dg/line_length_2.f90: Likewise.
* gfortran.dg/line_length_5.f90: Likewise.
* gfortran.dg/line_length_6.f90: Likewise.
* gfortran.dg/line_length_7.f90: Likewise.
* gfortran.dg/line_length_8.f90: Likewise.
* gfortran.dg/line_length_9.f90: Likewise.
* gfortran.dg/continuation_5.f90: New test.
* gfortran.dg/continuation_6.f90: New test.
* gfortran.dg/line_length_12.f90: New test.
* gfortran.dg/line_length_13.f90: New test.
* gfortran.dg/line_length_14.f90: New test.
gcc/fortran/gfortran.texi | 11 +-
gcc/fortran/invoke.texi | 21 +-
gcc/fortran/lang.opt | 4 +
gcc/fortran/libgfortran.h | 4 +-
gcc/fortran/options.cc | 20 +-
gcc/testsuite/gfortran.dg/continuation_5.f90 | 267 +++++++++++++++++++++
gcc/testsuite/gfortran.dg/continuation_6.f90 | 267 +++++++++++++++++++++
gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90 | 1 +
gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90 | 1 +
gcc/testsuite/gfortran.dg/line_length_10.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_11.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_12.f90 | 31 +++
gcc/testsuite/gfortran.dg/line_length_13.f90 | 27 +++
gcc/testsuite/gfortran.dg/line_length_14.f90 | 28 +++
gcc/testsuite/gfortran.dg/line_length_2.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_5.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_6.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_7.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_8.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_9.f90 | 2 +-
20 files changed, 672 insertions(+), 26 deletions(-)
diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index e7ffc294dc8..41857cc9038 100644
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -3477,11 +3477,12 @@ standard. Possible values are (bitwise or-ed) @code{GFC_STD_F77} (1),
@code{GFC_STD_F95} (8), @code{GFC_STD_F2003} (16), @code{GFC_STD_GNU}
(32), @code{GFC_STD_LEGACY} (64), @code{GFC_STD_F2008} (128),
@code{GFC_STD_F2008_OBS} (256), @code{GFC_STD_F2008_TS} (512),
-@code{GFC_STD_F2018} (1024), @code{GFC_STD_F2018_OBS} (2048), and
-@code{GFC_STD=F2018_DEL} (4096). Default: @code{GFC_STD_F95_OBS |
-GFC_STD_F95_DEL | GFC_STD_F95 | GFC_STD_F2003 | GFC_STD_F2008 |
-GFC_STD_F2008_TS | GFC_STD_F2008_OBS | GFC_STD_F77 | GFC_STD_F2018 |
-GFC_STD_F2018_OBS | GFC_STD_F2018_DEL | GFC_STD_GNU | GFC_STD_LEGACY}.
+@code{GFC_STD_F2018} (1024), @code{GFC_STD_F2018_OBS} (2048),
+@code{GFC_STD=F2018_DEL} (4096), and @code{GFC_STD=F2023} (8192).
+Default: @code{GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_F95 |
+GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F2008_TS | GFC_STD_F2008_OBS
+| GFC_STD_F77 | GFC_STD_F2018 | GFC_STD_F2018_OBS | GFC_STD_F2018_DEL
+| GFC_STD_F2023 | GFC_STD_GNU | GFC_STD_LEGACY}.
@item @var{option}[1] @tab Standard-warning flag; prints a warning to
standard error. Default: @code{GFC_STD_F95_DEL | GFC_STD_LEGACY}.
@item @var{option}[2] @tab If non zero, enable pedantic checking.
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi
index 10387e39501..5f87b330a22 100644
--- a/gcc/fortran/invoke.texi
+++ b/gcc/fortran/invoke.texi
@@ -542,17 +542,17 @@ intermediate representation of the translated Fortran code, produced by
@opindex @code{std=}@var{std} option
@item -std=@var{std}
Specify the standard to which the program is expected to conform,
-which may be one of @samp{f95}, @samp{f2003}, @samp{f2008},
-@samp{f2018}, @samp{gnu}, or @samp{legacy}. The default value for
+which may be one of @samp{f95}, @samp{f2003}, @samp{f2008}, @samp{f2018},
+@samp{f2023}, @samp{gnu}, or @samp{legacy}. The default value for
@var{std} is @samp{gnu}, which specifies a superset of the latest
Fortran standard that includes all of the extensions supported by GNU
Fortran, although warnings will be given for obsolete extensions not
recommended for use in new code. The @samp{legacy} value is
equivalent but without the warnings for obsolete extensions, and may
-be useful for old non-standard programs. The @samp{f95},
-@samp{f2003}, @samp{f2008}, and @samp{f2018} values specify strict
-conformance to the Fortran 95, Fortran 2003, Fortran 2008 and Fortran
-2018 standards, respectively; errors are given for all extensions
+be useful for old non-standard programs. The @samp{f95}, @samp{f2003},
+@samp{f2008}, @samp{f2018}, and @samp{f2023} values specify strict
+conformance to the Fortran 95, Fortran 2003, Fortran 2008, Fortran 2018
+and Fortran 2023 standards, respectively; errors are given for all extensions
beyond the relevant language standard, and warnings are given for the
Fortran 77 features that are permitted but obsolescent in later
standards. The deprecated option @samp{-std=f2008ts} acts as an alias for
@@ -910,7 +910,8 @@ nonstandard practices, but not all.
However, improvements to GNU Fortran in this area are welcome.
This should be used in conjunction with @option{-std=f95},
-@option{-std=f2003}, @option{-std=f2008} or @option{-std=f2018}.
+@option{-std=f2003}, @option{-std=f2008}, @option{-std=f2018}
+or @option{-std=f2023}.
@opindex @code{pedantic-errors}
@item -pedantic-errors
@@ -958,8 +959,8 @@ The following example will trigger the warning.
@item -Wampersand
Warn about missing ampersand in continued character constants. The
warning is given with @option{-Wampersand}, @option{-pedantic},
-@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008} and
-@option{-std=f2018}. Note: With no ampersand given in a continued
+@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008}, @option{-std=f2018}
+and @option{-std=f203}. Note: With no ampersand given in a continued
character constant, GNU Fortran assumes continuation at the first
non-comment, non-whitespace character after the ampersand that
initiated the continuation.
@@ -1108,7 +1109,7 @@ of the Fortran Character Set. For continuation lines, a tab followed
by a digit between 1 and 9 is supported. @option{-Wtabs} will cause a
warning to be issued if a tab is encountered. Note, @option{-Wtabs} is
active for @option{-pedantic}, @option{-std=f95}, @option{-std=f2003},
-@option{-std=f2008}, @option{-std=f2018} and
+@option{-std=f2008}, @option{-std=f2018}, @option{-std=f2023} and
@option{-Wall}.
@opindex @code{Wundefined-do-loop}
diff --git a/gcc/fortran/lang.opt b/gcc/fortran/lang.opt
index 7236351a93c..08c75394aa0 100644
--- a/gcc/fortran/lang.opt
+++ b/gcc/fortran/lang.opt
@@ -883,6 +883,10 @@ std=f2018
Fortran
Conform to the ISO Fortran 2018 standard.
+std=f2023
+Fortran
+Conform to the ISO Fortran 2023 standard.
+
std=f95
Fortran
Conform to the ISO Fortran 95 standard.
diff --git a/gcc/fortran/libgfortran.h b/gcc/fortran/libgfortran.h
index cb84b59c99a..bdddb317ab0 100644
--- a/gcc/fortran/libgfortran.h
+++ b/gcc/fortran/libgfortran.h
@@ -19,9 +19,10 @@ along with GCC; see the file COPYING3. If not see
/* Flags to specify which standard/extension contains a feature.
- Note that no features were obsoleted nor deleted in F2003.
+ Note that no features were obsoleted nor deleted in F2003 nor in F2023.
Please remember to keep those definitions in sync with
gfortran.texi. */
+#define GFC_STD_F2023 (1<<12) /* New in F2023. */
#define GFC_STD_F2018_DEL (1<<11) /* Deleted in F2018. */
#define GFC_STD_F2018_OBS (1<<10) /* Obsolescent in F2018. */
#define GFC_STD_F2018 (1<<9) /* New in F2018. */
@@ -45,6 +46,7 @@ along with GCC; see the file COPYING3. If not see
#define GFC_STD_OPT_F08 (GFC_STD_OPT_F03 | GFC_STD_F2008)
#define GFC_STD_OPT_F18 ((GFC_STD_OPT_F08 | GFC_STD_F2018) \
& (~GFC_STD_F2018_DEL))
+#define GFC_STD_OPT_F23 (GFC_STD_OPT_F18 | GFC_STD_F2023)
/* Bitmasks for the various FPE that can be enabled. These need to be straight integers
e.g., 8 instead of (1<<3), because they will be included in Fortran source. */
diff --git a/gcc/fortran/options.cc b/gcc/fortran/options.cc
index cfb195756a8..ffdc32769f1 100644
--- a/gcc/fortran/options.cc
+++ b/gcc/fortran/options.cc
@@ -57,7 +57,7 @@ set_default_std_flags (void)
gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
| GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY
- | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS;
+ | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS | GFC_STD_F2023;
gfc_option.warn_std = GFC_STD_F2018_DEL | GFC_STD_F95_DEL | GFC_STD_LEGACY;
}
@@ -144,7 +144,7 @@ gfc_init_options (unsigned int decoded_options_count,
gfc_option.module_dir = NULL;
gfc_option.source_form = FORM_UNKNOWN;
gfc_option.max_continue_fixed = 255;
- gfc_option.max_continue_free = 255;
+ gfc_option.max_continue_free = 1000000;
gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
gfc_option.max_errors = 25;
@@ -266,6 +266,10 @@ gfc_post_options (const char **pfilename)
cpp_warn_missing_include_dirs, 1);
gfc_check_include_dirs (verbose_missing_dir_warn);
+ SET_OPTION_IF_UNSET (&global_options, &global_options_set,
+ flag_free_line_length,
+ (gfc_option.allow_std & GFC_STD_F2023) ? 10000 : 132);
+
/* Finalize DEC flags. */
post_dec_flags (flag_dec);
@@ -769,6 +773,7 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2003:
gfc_option.allow_std = GFC_STD_OPT_F03;
gfc_option.warn_std = GFC_STD_F95_OBS;
+ gfc_option.max_continue_free = 255;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
@@ -777,6 +782,7 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2008:
gfc_option.allow_std = GFC_STD_OPT_F08;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
+ gfc_option.max_continue_free = 255;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
@@ -785,6 +791,16 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2008ts:
case OPT_std_f2018:
gfc_option.allow_std = GFC_STD_OPT_F18;
+ gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
+ | GFC_STD_F2018_OBS;
+ gfc_option.max_continue_free = 255;
+ gfc_option.max_identifier_length = 63;
+ warn_ampersand = 1;
+ warn_tabs = 1;
+ break;
+
+ case OPT_std_f2023:
+ gfc_option.allow_std = GFC_STD_OPT_F23;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
| GFC_STD_F2018_OBS;
gfc_option.max_identifier_length = 63;
diff --git a/gcc/testsuite/gfortran.dg/continuation_5.f90 b/gcc/testsuite/gfortran.dg/continuation_5.f90
new file mode 100644
index 00000000000..646c27c6dc6
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/continuation_5.f90
@@ -0,0 +1,267 @@
+! { dg-do compile }
+! { dg-options -std=f2018 }
+!
+! copied from continuation_4.f90 - but use -std=f2018
+! Fortran 2018: Limit is 255 <<< TESTED
+! Fortran 2023: No limit
+!
+! PR 19262 Test limit on line continuations. Test case derived form case in PR
+! by Steve Kargl. Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org>
+print *, &
+ "1" // & ! 1 Counting in groups of 40.
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 40
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 80
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 120
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 160
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 200
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 240
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 255
+ "0" ! { dg-warning "Limit of 255 continuations exceeded" }
+end
diff --git a/gcc/testsuite/gfortran.dg/continuation_6.f90 b/gcc/testsuite/gfortran.dg/continuation_6.f90
new file mode 100644
index 00000000000..28c90613523
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/continuation_6.f90
@@ -0,0 +1,267 @@
+! { dg-do compile }
+! { dg-options -std=f2023 }
+!
+! copied from continuation_4.f90 - but use -std=f2023
+! Fortran 2018: Limit is 255
+! Fortran 2023: No limit <<< TESTED
+!
+! PR 19262 Test limit on line continuations. Test case derived form case in PR
+! by Steve Kargl. Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org>
+print *, &
+ "1" // & ! 1 Counting in groups of 40.
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 40
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 80
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 120
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 160
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 200
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 240
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 255
+ "0" ! No warning with -std=f2023
+end
diff --git a/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90 b/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
index 15ef3f513ae..101e026701d 100644
--- a/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
+++ b/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
@@ -1,4 +1,5 @@
! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
! PR fortran/97390
!
integer :: tempRbuffer, array, compactHaloInfo, dimsizes, nHaloLayers, gpu_nList_send, gpu_idx_send, gpu_bufferOffset_send, counter
diff --git a/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90 b/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
index 86d7eb27b30..20cd0449b9a 100644
--- a/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
+++ b/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
@@ -1,4 +1,5 @@
! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
!
! PR fortran/94709
!
diff --git a/gcc/testsuite/gfortran.dg/line_length_10.f90 b/gcc/testsuite/gfortran.dg/line_length_10.f90
index 390e9a16358..c244172e162 100644
--- a/gcc/testsuite/gfortran.dg/line_length_10.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_10.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-line-truncation" }
+! { dg-options "-std=f2018 -Wno-line-truncation" }
!
! By default, for free-form source code: Error out
! But due to the explicit -Wno-line-truncation, compile w/o warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_11.f90 b/gcc/testsuite/gfortran.dg/line_length_11.f90
index 67f1e29a0eb..2125f5458ea 100644
--- a/gcc/testsuite/gfortran.dg/line_length_11.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_11.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-all" }
+! { dg-options "-Wno-all -std=f2018" }
!
! By default, for free-form source code: Error out
! But due to the explicit -Wno-all, compile w/o warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_12.f90 b/gcc/testsuite/gfortran.dg/line_length_12.f90
new file mode 100644
index 00000000000..c8a935a027b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/line_length_12.f90
@@ -0,0 +1,31 @@
+! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
+! { dg-prune-output "some warnings being treated as errors" }
+!
+! In Fortran 2018, the linelength is 132 characters. <<< Test this.
+! In Fortran 2023, the linelength is 10,000 characters.
+
+implicit none
+integer :: a, b, c, d
+
+a = & ! The next line has 9,999 characters -> OK
+ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 +4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 42
+
+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
+
+b = & ! The next line has 10,000 characters -> OK
+ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 +4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 42
+
+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
+
+c = & ! The next line has 10,001 characters -> TOO LONG
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+
+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
+
+end
diff --git a/gcc/testsuite/gfortran.dg/line_length_2.f90 b/gcc/testsuite/gfortran.dg/line_length_2.f90
index e1ab7220d03..ff44d882257 100644
--- a/gcc/testsuite/gfortran.dg/line_length_2.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_2.f90
@@ -1,7 +1,7 @@
! Testcase for -ffree-line-length-none
! See PR fortran/21302
! { dg-do compile }
-! { dg-options "-ffree-line-length-none" }
+! { dg-options "-ffree-line-length-none -std=f2018" }
program two
if (abs(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa).gt.999.d0.or.abs(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb).gt.999.d0.or.abs(cccccccccccccccccccc).gt.999.d0) THEN
endif
diff --git a/gcc/testsuite/gfortran.dg/line_length_5.f90 b/gcc/testsuite/gfortran.dg/line_length_5.f90
index 81832451ea2..ba9f2850b07 100644
--- a/gcc/testsuite/gfortran.dg/line_length_5.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_5.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wline-truncation" }
+! { dg-options "-std=f2018 -Wline-truncation" }
print *, 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
end
! { dg-error "Line truncated" " " { target *-*-* } 3 }
diff --git a/gcc/testsuite/gfortran.dg/line_length_6.f90 b/gcc/testsuite/gfortran.dg/line_length_6.f90
index 8cdb0209981..a88e2d247c0 100644
--- a/gcc/testsuite/gfortran.dg/line_length_6.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_6.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "" }
+! { dg-options "-std=f2018" }
!
! By default, for free-form source code: Error out
!
diff --git a/gcc/testsuite/gfortran.dg/line_length_7.f90 b/gcc/testsuite/gfortran.dg/line_length_7.f90
index b4ebf49c4bf..6c6d73b01c3 100644
--- a/gcc/testsuite/gfortran.dg/line_length_7.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_7.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-error" }
+! { dg-options "-std=f2018 -Wno-error" }
!
! By default, for free-form source code: Error out
! But due to -Wno-error, we only expect a warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_8.f90 b/gcc/testsuite/gfortran.dg/line_length_8.f90
index afd6cc2df46..822b09e803a 100644
--- a/gcc/testsuite/gfortran.dg/line_length_8.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_8.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wline-truncation" }
+! { dg-options "-std=f2018 -Wline-truncation" }
!
! By default, for free-form source code: Error out
! Even with -Wline-truncation, we still get an error
diff --git a/gcc/testsuite/gfortran.dg/line_length_9.f90 b/gcc/testsuite/gfortran.dg/line_length_9.f90
index 6c156afc144..9f07d9a588e 100644
--- a/gcc/testsuite/gfortran.dg/line_length_9.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_9.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wall" }
+! { dg-options "-std=f2018 -Wall" }
!
! By default, for free-form source code: Error out
! Even with -Wall, we still get an error
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023
2023-11-16 13:01 [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023 Tobias Burnus
@ 2023-11-16 19:30 ` Harald Anlauf
2023-11-17 11:38 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023) Tobias Burnus
2023-11-17 3:38 ` [Patch] Fortran: Accept -std=f2023 support, " Jerry D
1 sibling, 1 reply; 9+ messages in thread
From: Harald Anlauf @ 2023-11-16 19:30 UTC (permalink / raw)
To: Tobias Burnus, gcc-patches, fortran
Hi Tobias,
On 11/16/23 14:01, Tobias Burnus wrote:
> This adds -std=f2023, which is mostly a prep patch for future changes.
>
> However, Fortran 2023, https://j3-fortran.org/doc/year/23/23-007r1.pdf
> changes two things which is taken
> care in this patch:
>
> (A) In "6.3.2.1 Free form line length":
>
> Fortran 2018: "If a line consists entirely of characters of default kind
> (7.4.4), it shall contain at most 132 characters"
> Fortran 2023: "A line shall contain at most ten thousand characters."
>
> (B) In "6.3.2.6 Free form statements":
> Fortran 2018: "A statement shall not have more than 255 continuation
> lines."
> Fortran 2023: "A statement shall not have more than one million
> characters."
this is really a funny change: we're not really prepared to handle
this. According to the standard one can have 999999 lines with only
"&" and then an ";", but then only 100 lines with 10000 characters.
There is a similar wording for fixed-form which you overlooked:
6.3.3.5 Fixed form statements
Fortran 2023: "A statement shall not have more than one million characters"
Please adjust the fixed-form limits in your patch.
If you think that we need testcases for fixed-form, add them,
or forget them. I don't bother.
> I have not added a testcase for exceeding the latter but otherwise there
> are new
> tests and I had to add a couple of -std=f2018 to existing tests.
>
> Comments, suggestions, approval?
I have the following comments:
- there are existing testcases continuation_5.f, continuation_6.f,
thus I suggest to rename your new continuation_{5,6}.f90 to
continuation_17.f90+ .
- I don't understand your new testcase line_length_14.f90 .
This is supposed to test -std=gnu, but then -std=gnu is not a
standard but a moving target, which is why you had to adjust
existing testcases.
So what does it buy us beyond line_length_1{2,3}.f90 ?
> Tobias
>
> PS: I find it funny that -std=c23, -std=c++23 and -std=f2023 will get
> added in the same GCC release.
:-)
> PPS: I did not bother adding .f23 as file extension; I believe that also
> .f18 is unsupported.
I never use extensions other than .f90 for portable code.
With the above fixed, I am fine with your patch.
Thanks,
Harald
> -----------------
> Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201,
> 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer:
> Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München;
> Registergericht München, HRB 106955
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023
2023-11-16 13:01 [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023 Tobias Burnus
2023-11-16 19:30 ` Harald Anlauf
@ 2023-11-17 3:38 ` Jerry D
1 sibling, 0 replies; 9+ messages in thread
From: Jerry D @ 2023-11-17 3:38 UTC (permalink / raw)
To: fortran
On 11/16/23 5:01 AM, Tobias Burnus wrote:
> This adds -std=f2023, which is mostly a prep patch for future changes.
>
> However, Fortran 2023, https://j3-fortran.org/doc/year/23/23-007r1.pdf
> changes two things which is taken
> care in this patch:
>
> (A) In "6.3.2.1 Free form line length":
>
> Fortran 2018: "If a line consists entirely of characters of default kind
> (7.4.4), it shall contain at most 132 characters"
> Fortran 2023: "A line shall contain at most ten thousand characters."
>
> (B) In "6.3.2.6 Free form statements":
> Fortran 2018: "A statement shall not have more than 255 continuation
> lines."
> Fortran 2023: "A statement shall not have more than one million
> characters."
>
> I have not added a testcase for exceeding the latter but otherwise there
> are new
> tests and I had to add a couple of -std=f2018 to existing tests.
>
> Comments, suggestions, approval?
My only comment is that the Standards Committee seems to have no idea of
actual good coding practices. I have to assume they want this so people
can have very very long DATA statements or array constructors or some
such nonsense.
I always thought data files were for these sorts of things. The software
engineers I work with would roll there eyes and say, "Hey you users out
there, stop asking the compiler writers to fix your code for you by
changing the compiler. Do your code correctly in the first place"
Perhaps AI is being used to generate the source files?
Cheers,
Jerry
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023)
2023-11-16 19:30 ` Harald Anlauf
@ 2023-11-17 11:38 ` Tobias Burnus
2023-11-17 12:06 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 Mikael Morin
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Tobias Burnus @ 2023-11-17 11:38 UTC (permalink / raw)
To: Harald Anlauf, gcc-patches, fortran
[-- Attachment #1: Type: text/plain, Size: 3157 bytes --]
Hi Harald, hi all,
On 16.11.23 20:30, Harald Anlauf wrote:
> On 11/16/23 14:01, Tobias Burnus wrote:
>> This adds -std=f2023, which is mostly a prep patch for future changes.
...
>> (B) In "6.3.2.6 Free form statements":
>> Fortran 2018: "A statement shall not have more than 255 continuation
>> lines."
>> Fortran 2023: "A statement shall not have more than one million
>> characters."
>
> this is really a funny change: we're not really prepared to handle
> this.
I can confirm this. I tried to get it working in scanner.cc but due to
the re-parsing it is quite difficult to get it right; the main problem
is that we keep reparsing code ("gfc_current_locus = old_loc"), such
that a simple count will be wrong.
→ Now tracked at https://gcc.gnu.org/PR112586
> According to the standard one can have 999999 lines with only
> "&" and then an ";", but then only 100 lines with 10000 characters.
I believe a single '&' is not valid, you either need '&&' or something
else + '&'; thus, you can have only half a million lines + 1.
In the code, I still use 1,000,000 but now with a comment.
> There is a similar wording for fixed-form which you overlooked:
Ups - fixed.
> If you think that we need testcases for fixed-form, add them,
> or forget them. I don't bother.
I added one.
> - there are existing testcases continuation_5.f, continuation_6.f,
> thus I suggest to rename your new continuation_{5,6}.f90 to
> continuation_17.f90+ .
Done. We are rather inconsistent whether we enumerate <file>.f{,90}
together or separately; as the suffix is shown, either works.
>
> - I don't understand your new testcase line_length_14.f90 .
> This is supposed to test -std=gnu, but then -std=gnu is not a
> standard but a moving target, which is why you had to adjust
> existing testcases.
> So what does it buy us beyond line_length_1{2,3}.f90 ?
Well, it ensures that the warning is not only shown for -std=f2023 but
also for -std=f2028 and (current -std=gnu). In general, I think it is
useful to check the lower and the upper bound.
I have now removed it - as it is unlikely that we would regress on such
changes.
>> PPS: I did not bother adding .f23 as file extension; I believe that also
>> .f18 is unsupported.
> I never use extensions other than .f90 for portable code.
Likewise - especially as '.f95' starts out as Fortran code that
complies to -std=f95 but slowly Fortran 2003 or later code creeps in. I
think that's fine but then one can also directly use .f90. (Most code
does so.)
Unless there are follow up comments, I will commit it later today.
Thanks for the comments!
Tobias
PS: I fixed the wording issue in the subject line of the email and
header. I first wrote 'support' but that sounded a bit as if F2023 is
supported. Hence, I wrote 'Accept' and did not remove 'support'.
-----------------
Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955
[-- Attachment #2: std-f2023-v3.diff --]
[-- Type: text/x-patch, Size: 115483 bytes --]
Fortran: Accept -std=f2023, update line-length for Fortran 2023
This patch accepts -std=f2023, uses it by default and bumps for the
free-source form the line length to 10,000 and the statement length
alias number of continuation lines to unlimited.
gcc/fortran/ChangeLog:
* gfortran.texi (_gfortran_set_options): Document GFC_STD_F2023.
* invoke.texi (std,pedantic,Wampersand,Wtabs): Add -std=2023.
* lang.opt (std=f2023): Add.
* libgfortran.h (GFC_STD_F2023, GFC_STD_OPT_F23): Add.
* options.cc (set_default_std_flags): Add GFC_STD_F2023.
(gfc_init_options): Set max_continue_free to 1,000,000.
(gfc_post_options): Set flag_free_line_length if unset.
(gfc_handle_option): Add OPT_std_f2023, set max_continue_free = 255
for -std=f2003, f2008 and f2018.
gcc/testsuite/ChangeLog:
* gfortran.dg/goacc/warn_truncated.f90: Add -std=f2018 option.
* gfortran.dg/gomp/warn_truncated.f90: Likewise.
* gfortran.dg/line_length_10.f90: Likewise.
* gfortran.dg/line_length_11.f90: Likewise.
* gfortran.dg/line_length_2.f90: Likewise.
* gfortran.dg/line_length_5.f90: Likewise.
* gfortran.dg/line_length_6.f90: Likewise.
* gfortran.dg/line_length_7.f90: Likewise.
* gfortran.dg/line_length_8.f90: Likewise.
* gfortran.dg/line_length_9.f90: Likewise.
* gfortran.dg/continuation_17.f90: New test.
* gfortran.dg/continuation_18.f90: New test.
* gfortran.dg/continuation_19.f: New test.
* gfortran.dg/line_length_12.f90: New test.
* gfortran.dg/line_length_13.f90: New test.
gcc/fortran/gfortran.texi | 11 +-
gcc/fortran/invoke.texi | 21 +-
gcc/fortran/lang.opt | 4 +
gcc/fortran/libgfortran.h | 4 +-
gcc/fortran/options.cc | 28 ++-
gcc/testsuite/gfortran.dg/continuation_17.f90 | 267 +++++++++++++++++++++
gcc/testsuite/gfortran.dg/continuation_18.f90 | 267 +++++++++++++++++++++
gcc/testsuite/gfortran.dg/continuation_19.f | 267 +++++++++++++++++++++
gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90 | 1 +
gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90 | 1 +
gcc/testsuite/gfortran.dg/line_length_10.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_11.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_12.f90 | 31 +++
gcc/testsuite/gfortran.dg/line_length_13.f90 | 27 +++
gcc/testsuite/gfortran.dg/line_length_2.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_5.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_6.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_7.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_8.f90 | 2 +-
gcc/testsuite/gfortran.dg/line_length_9.f90 | 2 +-
20 files changed, 918 insertions(+), 27 deletions(-)
diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index e7ffc294dc8..41857cc9038 100644
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -3477,11 +3477,12 @@ standard. Possible values are (bitwise or-ed) @code{GFC_STD_F77} (1),
@code{GFC_STD_F95} (8), @code{GFC_STD_F2003} (16), @code{GFC_STD_GNU}
(32), @code{GFC_STD_LEGACY} (64), @code{GFC_STD_F2008} (128),
@code{GFC_STD_F2008_OBS} (256), @code{GFC_STD_F2008_TS} (512),
-@code{GFC_STD_F2018} (1024), @code{GFC_STD_F2018_OBS} (2048), and
-@code{GFC_STD=F2018_DEL} (4096). Default: @code{GFC_STD_F95_OBS |
-GFC_STD_F95_DEL | GFC_STD_F95 | GFC_STD_F2003 | GFC_STD_F2008 |
-GFC_STD_F2008_TS | GFC_STD_F2008_OBS | GFC_STD_F77 | GFC_STD_F2018 |
-GFC_STD_F2018_OBS | GFC_STD_F2018_DEL | GFC_STD_GNU | GFC_STD_LEGACY}.
+@code{GFC_STD_F2018} (1024), @code{GFC_STD_F2018_OBS} (2048),
+@code{GFC_STD=F2018_DEL} (4096), and @code{GFC_STD=F2023} (8192).
+Default: @code{GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_F95 |
+GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F2008_TS | GFC_STD_F2008_OBS
+| GFC_STD_F77 | GFC_STD_F2018 | GFC_STD_F2018_OBS | GFC_STD_F2018_DEL
+| GFC_STD_F2023 | GFC_STD_GNU | GFC_STD_LEGACY}.
@item @var{option}[1] @tab Standard-warning flag; prints a warning to
standard error. Default: @code{GFC_STD_F95_DEL | GFC_STD_LEGACY}.
@item @var{option}[2] @tab If non zero, enable pedantic checking.
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi
index 10387e39501..5f87b330a22 100644
--- a/gcc/fortran/invoke.texi
+++ b/gcc/fortran/invoke.texi
@@ -542,17 +542,17 @@ intermediate representation of the translated Fortran code, produced by
@opindex @code{std=}@var{std} option
@item -std=@var{std}
Specify the standard to which the program is expected to conform,
-which may be one of @samp{f95}, @samp{f2003}, @samp{f2008},
-@samp{f2018}, @samp{gnu}, or @samp{legacy}. The default value for
+which may be one of @samp{f95}, @samp{f2003}, @samp{f2008}, @samp{f2018},
+@samp{f2023}, @samp{gnu}, or @samp{legacy}. The default value for
@var{std} is @samp{gnu}, which specifies a superset of the latest
Fortran standard that includes all of the extensions supported by GNU
Fortran, although warnings will be given for obsolete extensions not
recommended for use in new code. The @samp{legacy} value is
equivalent but without the warnings for obsolete extensions, and may
-be useful for old non-standard programs. The @samp{f95},
-@samp{f2003}, @samp{f2008}, and @samp{f2018} values specify strict
-conformance to the Fortran 95, Fortran 2003, Fortran 2008 and Fortran
-2018 standards, respectively; errors are given for all extensions
+be useful for old non-standard programs. The @samp{f95}, @samp{f2003},
+@samp{f2008}, @samp{f2018}, and @samp{f2023} values specify strict
+conformance to the Fortran 95, Fortran 2003, Fortran 2008, Fortran 2018
+and Fortran 2023 standards, respectively; errors are given for all extensions
beyond the relevant language standard, and warnings are given for the
Fortran 77 features that are permitted but obsolescent in later
standards. The deprecated option @samp{-std=f2008ts} acts as an alias for
@@ -910,7 +910,8 @@ nonstandard practices, but not all.
However, improvements to GNU Fortran in this area are welcome.
This should be used in conjunction with @option{-std=f95},
-@option{-std=f2003}, @option{-std=f2008} or @option{-std=f2018}.
+@option{-std=f2003}, @option{-std=f2008}, @option{-std=f2018}
+or @option{-std=f2023}.
@opindex @code{pedantic-errors}
@item -pedantic-errors
@@ -958,8 +959,8 @@ The following example will trigger the warning.
@item -Wampersand
Warn about missing ampersand in continued character constants. The
warning is given with @option{-Wampersand}, @option{-pedantic},
-@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008} and
-@option{-std=f2018}. Note: With no ampersand given in a continued
+@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008}, @option{-std=f2018}
+and @option{-std=f203}. Note: With no ampersand given in a continued
character constant, GNU Fortran assumes continuation at the first
non-comment, non-whitespace character after the ampersand that
initiated the continuation.
@@ -1108,7 +1109,7 @@ of the Fortran Character Set. For continuation lines, a tab followed
by a digit between 1 and 9 is supported. @option{-Wtabs} will cause a
warning to be issued if a tab is encountered. Note, @option{-Wtabs} is
active for @option{-pedantic}, @option{-std=f95}, @option{-std=f2003},
-@option{-std=f2008}, @option{-std=f2018} and
+@option{-std=f2008}, @option{-std=f2018}, @option{-std=f2023} and
@option{-Wall}.
@opindex @code{Wundefined-do-loop}
diff --git a/gcc/fortran/lang.opt b/gcc/fortran/lang.opt
index 7236351a93c..08c75394aa0 100644
--- a/gcc/fortran/lang.opt
+++ b/gcc/fortran/lang.opt
@@ -883,6 +883,10 @@ std=f2018
Fortran
Conform to the ISO Fortran 2018 standard.
+std=f2023
+Fortran
+Conform to the ISO Fortran 2023 standard.
+
std=f95
Fortran
Conform to the ISO Fortran 95 standard.
diff --git a/gcc/fortran/libgfortran.h b/gcc/fortran/libgfortran.h
index cb84b59c99a..bdddb317ab0 100644
--- a/gcc/fortran/libgfortran.h
+++ b/gcc/fortran/libgfortran.h
@@ -19,9 +19,10 @@ along with GCC; see the file COPYING3. If not see
/* Flags to specify which standard/extension contains a feature.
- Note that no features were obsoleted nor deleted in F2003.
+ Note that no features were obsoleted nor deleted in F2003 nor in F2023.
Please remember to keep those definitions in sync with
gfortran.texi. */
+#define GFC_STD_F2023 (1<<12) /* New in F2023. */
#define GFC_STD_F2018_DEL (1<<11) /* Deleted in F2018. */
#define GFC_STD_F2018_OBS (1<<10) /* Obsolescent in F2018. */
#define GFC_STD_F2018 (1<<9) /* New in F2018. */
@@ -45,6 +46,7 @@ along with GCC; see the file COPYING3. If not see
#define GFC_STD_OPT_F08 (GFC_STD_OPT_F03 | GFC_STD_F2008)
#define GFC_STD_OPT_F18 ((GFC_STD_OPT_F08 | GFC_STD_F2018) \
& (~GFC_STD_F2018_DEL))
+#define GFC_STD_OPT_F23 (GFC_STD_OPT_F18 | GFC_STD_F2023)
/* Bitmasks for the various FPE that can be enabled. These need to be straight integers
e.g., 8 instead of (1<<3), because they will be included in Fortran source. */
diff --git a/gcc/fortran/options.cc b/gcc/fortran/options.cc
index cfb195756a8..b788521e816 100644
--- a/gcc/fortran/options.cc
+++ b/gcc/fortran/options.cc
@@ -57,7 +57,7 @@ set_default_std_flags (void)
gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
| GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
| GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY
- | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS;
+ | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS | GFC_STD_F2023;
gfc_option.warn_std = GFC_STD_F2018_DEL | GFC_STD_F95_DEL | GFC_STD_LEGACY;
}
@@ -143,8 +143,11 @@ gfc_init_options (unsigned int decoded_options_count,
gfc_source_file = NULL;
gfc_option.module_dir = NULL;
gfc_option.source_form = FORM_UNKNOWN;
- gfc_option.max_continue_fixed = 255;
- gfc_option.max_continue_free = 255;
+ /* The following is not quite right as Fortran since 2023 has: "A statement
+ shall not have more than one million characters." This can already be
+ reached by 'just' 100 lines with 10,000 characters each. */
+ gfc_option.max_continue_fixed = 1000000;
+ gfc_option.max_continue_free = 1000000;
gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
gfc_option.max_errors = 25;
@@ -266,6 +269,10 @@ gfc_post_options (const char **pfilename)
cpp_warn_missing_include_dirs, 1);
gfc_check_include_dirs (verbose_missing_dir_warn);
+ SET_OPTION_IF_UNSET (&global_options, &global_options_set,
+ flag_free_line_length,
+ (gfc_option.allow_std & GFC_STD_F2023) ? 10000 : 132);
+
/* Finalize DEC flags. */
post_dec_flags (flag_dec);
@@ -769,6 +776,8 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2003:
gfc_option.allow_std = GFC_STD_OPT_F03;
gfc_option.warn_std = GFC_STD_F95_OBS;
+ gfc_option.max_continue_fixed = 255;
+ gfc_option.max_continue_free = 255;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
@@ -777,6 +786,8 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2008:
gfc_option.allow_std = GFC_STD_OPT_F08;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
+ gfc_option.max_continue_free = 255;
+ gfc_option.max_continue_fixed = 255;
gfc_option.max_identifier_length = 63;
warn_ampersand = 1;
warn_tabs = 1;
@@ -785,6 +796,17 @@ gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
case OPT_std_f2008ts:
case OPT_std_f2018:
gfc_option.allow_std = GFC_STD_OPT_F18;
+ gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
+ | GFC_STD_F2018_OBS;
+ gfc_option.max_continue_free = 255;
+ gfc_option.max_continue_fixed = 255;
+ gfc_option.max_identifier_length = 63;
+ warn_ampersand = 1;
+ warn_tabs = 1;
+ break;
+
+ case OPT_std_f2023:
+ gfc_option.allow_std = GFC_STD_OPT_F23;
gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS
| GFC_STD_F2018_OBS;
gfc_option.max_identifier_length = 63;
diff --git a/gcc/testsuite/gfortran.dg/continuation_17.f90 b/gcc/testsuite/gfortran.dg/continuation_17.f90
new file mode 100644
index 00000000000..6f2b11dbe4b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/continuation_17.f90
@@ -0,0 +1,267 @@
+! { dg-do compile }
+! { dg-options -std=f2018 }
+!
+! copied from continuation_4.f90 - but use -std=f2018
+! Fortran 2018: Continuation-line limit is 255 <<< TESTED
+! Fortran 2023: Maximally 1,000,000 characters per statement (implied but no explicit continuation-line line limit)
+!
+! PR 19262 Test limit on line continuations. Test case derived form case in PR
+! by Steve Kargl. Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org>
+print *, &
+ "1" // & ! 1 Counting in groups of 40.
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 40
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 80
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 120
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 160
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 200
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 240
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 255
+ "0" ! { dg-warning "Limit of 255 continuations exceeded" }
+end
diff --git a/gcc/testsuite/gfortran.dg/continuation_18.f90 b/gcc/testsuite/gfortran.dg/continuation_18.f90
new file mode 100644
index 00000000000..7ad887d7009
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/continuation_18.f90
@@ -0,0 +1,267 @@
+! { dg-do compile }
+! { dg-options -std=f2023 }
+!
+! copied from continuation_4.f90 - but use -std=f2023
+! Fortran 2018: Continuation-line limit is 255
+! Fortran 2023: Maximally 1,000,000 characters per statement (implied but no explicit continuation-line line limit) <<< TESTED
+!
+! PR 19262 Test limit on line continuations. Test case derived form case in PR
+! by Steve Kargl. Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org>
+print *, &
+ "1" // & ! 1 Counting in groups of 40.
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 40
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 80
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 120
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 160
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 200
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 15
+ "6" // & ! 16
+ "7" // & ! 17
+ "8" // & ! 18
+ "9" // & ! 19
+ "0" // & ! 20
+ "1" // & ! 21
+ "2" // & ! 22
+ "3" // & ! 23
+ "4" // & ! 24
+ "5" // & ! 25
+ "6" // & ! 26
+ "7" // & ! 27
+ "8" // & ! 28
+ "9" // & ! 29
+ "0" // & ! 30
+ "1" // & ! 31
+ "2" // & ! 32
+ "3" // & ! 33
+ "4" // & ! 34
+ "5" // & ! 35
+ "6" // & ! 36
+ "7" // & ! 37
+ "8" // & ! 38
+ "9" // & ! 39
+ "0" // & ! 240
+ "1" // & ! 1
+ "2" // & ! 2
+ "3" // & ! 3
+ "4" // & ! 4
+ "5" // & ! 5
+ "6" // & ! 6
+ "7" // & ! 7
+ "8" // & ! 8
+ "9" // & ! 9
+ "0" // & ! 10
+ "1" // & ! 11
+ "2" // & ! 12
+ "3" // & ! 13
+ "4" // & ! 14
+ "5" // & ! 255
+ "0" ! No warning with -std=f2023
+end
diff --git a/gcc/testsuite/gfortran.dg/continuation_19.f b/gcc/testsuite/gfortran.dg/continuation_19.f
new file mode 100644
index 00000000000..2b32a333fdc
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/continuation_19.f
@@ -0,0 +1,267 @@
+! { dg-do run }
+! { dg-options "-std=f2023" }
+
+ implicit none
+ integer :: x
+
+ ! 256 continuation lines - but less than 1,000,000 character
+ ! => Valid since Fortran 2023
+ x =
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
+ & + 2
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+
+ end
diff --git a/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90 b/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
index 15ef3f513ae..101e026701d 100644
--- a/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
+++ b/gcc/testsuite/gfortran.dg/goacc/warn_truncated.f90
@@ -1,4 +1,5 @@
! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
! PR fortran/97390
!
integer :: tempRbuffer, array, compactHaloInfo, dimsizes, nHaloLayers, gpu_nList_send, gpu_idx_send, gpu_bufferOffset_send, counter
diff --git a/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90 b/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
index 86d7eb27b30..20cd0449b9a 100644
--- a/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
+++ b/gcc/testsuite/gfortran.dg/gomp/warn_truncated.f90
@@ -1,4 +1,5 @@
! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
!
! PR fortran/94709
!
diff --git a/gcc/testsuite/gfortran.dg/line_length_10.f90 b/gcc/testsuite/gfortran.dg/line_length_10.f90
index 390e9a16358..c244172e162 100644
--- a/gcc/testsuite/gfortran.dg/line_length_10.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_10.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-line-truncation" }
+! { dg-options "-std=f2018 -Wno-line-truncation" }
!
! By default, for free-form source code: Error out
! But due to the explicit -Wno-line-truncation, compile w/o warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_11.f90 b/gcc/testsuite/gfortran.dg/line_length_11.f90
index 67f1e29a0eb..2125f5458ea 100644
--- a/gcc/testsuite/gfortran.dg/line_length_11.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_11.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-all" }
+! { dg-options "-Wno-all -std=f2018" }
!
! By default, for free-form source code: Error out
! But due to the explicit -Wno-all, compile w/o warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_12.f90 b/gcc/testsuite/gfortran.dg/line_length_12.f90
new file mode 100644
index 00000000000..c8a935a027b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/line_length_12.f90
@@ -0,0 +1,31 @@
+! { dg-do compile }
+! { dg-additional-options "-std=f2018" }
+! { dg-prune-output "some warnings being treated as errors" }
+!
+! In Fortran 2018, the linelength is 132 characters. <<< Test this.
+! In Fortran 2023, the linelength is 10,000 characters.
+
+implicit none
+integer :: a, b, c, d
+
+a = & ! The next line has 9,999 characters -> OK
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+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
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+c = & ! The next line has 10,001 characters -> TOO LONG
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+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
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+
+c = & ! The next line has 10,001 characters -> TOO LONG
+ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 +4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 4242
+
+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
+
+d = & ! The next line has 10,002 characters -> TOO LONG
+ 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 +4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 42424
+
+! { dg-error "Line truncated at .1. \\\[-Werror=line-truncation\\\]" "" { target *-*-* } .-2 }
+
+end
diff --git a/gcc/testsuite/gfortran.dg/line_length_2.f90 b/gcc/testsuite/gfortran.dg/line_length_2.f90
index e1ab7220d03..ff44d882257 100644
--- a/gcc/testsuite/gfortran.dg/line_length_2.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_2.f90
@@ -1,7 +1,7 @@
! Testcase for -ffree-line-length-none
! See PR fortran/21302
! { dg-do compile }
-! { dg-options "-ffree-line-length-none" }
+! { dg-options "-ffree-line-length-none -std=f2018" }
program two
if (abs(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa).gt.999.d0.or.abs(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb).gt.999.d0.or.abs(cccccccccccccccccccc).gt.999.d0) THEN
endif
diff --git a/gcc/testsuite/gfortran.dg/line_length_5.f90 b/gcc/testsuite/gfortran.dg/line_length_5.f90
index 81832451ea2..ba9f2850b07 100644
--- a/gcc/testsuite/gfortran.dg/line_length_5.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_5.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wline-truncation" }
+! { dg-options "-std=f2018 -Wline-truncation" }
print *, 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
end
! { dg-error "Line truncated" " " { target *-*-* } 3 }
diff --git a/gcc/testsuite/gfortran.dg/line_length_6.f90 b/gcc/testsuite/gfortran.dg/line_length_6.f90
index 8cdb0209981..a88e2d247c0 100644
--- a/gcc/testsuite/gfortran.dg/line_length_6.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_6.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "" }
+! { dg-options "-std=f2018" }
!
! By default, for free-form source code: Error out
!
diff --git a/gcc/testsuite/gfortran.dg/line_length_7.f90 b/gcc/testsuite/gfortran.dg/line_length_7.f90
index b4ebf49c4bf..6c6d73b01c3 100644
--- a/gcc/testsuite/gfortran.dg/line_length_7.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_7.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wno-error" }
+! { dg-options "-std=f2018 -Wno-error" }
!
! By default, for free-form source code: Error out
! But due to -Wno-error, we only expect a warning
diff --git a/gcc/testsuite/gfortran.dg/line_length_8.f90 b/gcc/testsuite/gfortran.dg/line_length_8.f90
index afd6cc2df46..822b09e803a 100644
--- a/gcc/testsuite/gfortran.dg/line_length_8.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_8.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wline-truncation" }
+! { dg-options "-std=f2018 -Wline-truncation" }
!
! By default, for free-form source code: Error out
! Even with -Wline-truncation, we still get an error
diff --git a/gcc/testsuite/gfortran.dg/line_length_9.f90 b/gcc/testsuite/gfortran.dg/line_length_9.f90
index 6c156afc144..9f07d9a588e 100644
--- a/gcc/testsuite/gfortran.dg/line_length_9.f90
+++ b/gcc/testsuite/gfortran.dg/line_length_9.f90
@@ -1,5 +1,5 @@
! { dg-do compile }
-! { dg-options "-Wall" }
+! { dg-options "-std=f2018 -Wall" }
!
! By default, for free-form source code: Error out
! Even with -Wall, we still get an error
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023
2023-11-17 11:38 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023) Tobias Burnus
@ 2023-11-17 12:06 ` Mikael Morin
2023-11-17 19:07 ` Harald Anlauf
2024-01-02 19:31 ` Harald Anlauf
2 siblings, 0 replies; 9+ messages in thread
From: Mikael Morin @ 2023-11-17 12:06 UTC (permalink / raw)
To: Tobias Burnus, Harald Anlauf, gcc-patches, fortran
Le 17/11/2023 à 12:38, Tobias Burnus a écrit :
>
> Unless there are follow up comments, I will commit it later today.
>
I skimmed quickly through the patch, and noticed one typo to fix:
> diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi
> index 10387e39501..5f87b330a22 100644
> --- a/gcc/fortran/invoke.texi
> +++ b/gcc/fortran/invoke.texi
> @@ -958,8 +959,8 @@ The following example will trigger the warning.
> @item -Wampersand
> Warn about missing ampersand in continued character constants. The
> warning is given with @option{-Wampersand}, @option{-pedantic},
> -@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008} and
> -@option{-std=f2018}. Note: With no ampersand given in a continued
> +@option{-std=f95}, @option{-std=f2003}, @option{-std=f2008},
@option{-std=f2018}
> +and @option{-std=f203}. Note: With no ampersand given in a continued
> character constant, GNU Fortran assumes continuation at the first
> non-comment, non-whitespace character after the ampersand that
> initiated the continuation.
s/f203/f2023/
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023
2023-11-17 11:38 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023) Tobias Burnus
2023-11-17 12:06 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 Mikael Morin
@ 2023-11-17 19:07 ` Harald Anlauf
2024-01-02 19:31 ` Harald Anlauf
2 siblings, 0 replies; 9+ messages in thread
From: Harald Anlauf @ 2023-11-17 19:07 UTC (permalink / raw)
To: Tobias Burnus, gcc-patches, fortran
Hi Tobias,
On 11/17/23 12:38, Tobias Burnus wrote:
> Hi Harald, hi all,
>
> On 16.11.23 20:30, Harald Anlauf wrote:
>> According to the standard one can have 999999 lines with only
>> "&" and then an ";", but then only 100 lines with 10000 characters.
>
> I believe a single '&' is not valid, you either need '&&' or something
> else + '&'; thus, you can have only half a million lines + 1.
after looking at the F2023 standard again I wonder why
they did such a disservice to compiler developers...
You are right: a single '&' is not valid.
6.3.2.4 also has:
"When used for continuation, the “&” is not part of the statement"
And 6.3.2.5 (also 6.3.3.4): "The “;” is not part of the statement".
So a million "&"-continued lines is possible in free form.
For fixed form, 6.3.3.1 has: "If a source line contains only characters
of default kind, it shall contain exactly 72 characters; otherwise, its
maximum number of characters is processor dependent."
I wonder what I should make out of this...
> In the code, I still use 1,000,000 but now with a comment.
Yeah, for the time being this is the most reasonable solution.
Let's claim that the 10^6 line limit is the new GNU standard ;-)
Cheers,
Harald
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023
2023-11-17 11:38 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023) Tobias Burnus
2023-11-17 12:06 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 Mikael Morin
2023-11-17 19:07 ` Harald Anlauf
@ 2024-01-02 19:31 ` Harald Anlauf
2024-01-02 19:37 ` Steve Kargl
2 siblings, 1 reply; 9+ messages in thread
From: Harald Anlauf @ 2024-01-02 19:31 UTC (permalink / raw)
To: Tobias Burnus, gcc-patches, fortran
Dear all,
we might want to update changes.html to reflect this. How about:
diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
index 403feb06..9b16f5e3 100644
--- a/htdocs/gcc-14/changes.html
+++ b/htdocs/gcc-14/changes.html
@@ -284,6 +284,11 @@ a work-in-progress.</p>
<h3 id="fortran">Fortran</h3>
<ul>
+ <li>The compiler now accepts the <code>-std=f2023</code> option, which
+ has been added in preparation of support of Fortran 2023. This option
+ increases the line-length limit for source in free-form to 10000, and
+ statements may have up to 1 million characters.
+ </li>
<li> With the <code>-save-temps</code> option, preprocessed files
with the <code>.fii</code> extension will be generated from
free-form source files such as <code>.F90</code> and
Cheers,
Harald
Am 17.11.23 um 12:38 schrieb Tobias Burnus:
> Hi Harald, hi all,
>
> On 16.11.23 20:30, Harald Anlauf wrote:
>> On 11/16/23 14:01, Tobias Burnus wrote:
>>> This adds -std=f2023, which is mostly a prep patch for future changes.
> ...
>>> (B) In "6.3.2.6 Free form statements":
>>> Fortran 2018: "A statement shall not have more than 255 continuation
>>> lines."
>>> Fortran 2023: "A statement shall not have more than one million
>>> characters."
>>
>> this is really a funny change: we're not really prepared to handle
>> this.
>
> I can confirm this. I tried to get it working in scanner.cc but due to
> the re-parsing it is quite difficult to get it right; the main problem
> is that we keep reparsing code ("gfc_current_locus = old_loc"), such
> that a simple count will be wrong.
>
> → Now tracked at https://gcc.gnu.org/PR112586
>
>
>> According to the standard one can have 999999 lines with only
>> "&" and then an ";", but then only 100 lines with 10000 characters.
>
> I believe a single '&' is not valid, you either need '&&' or something
> else + '&'; thus, you can have only half a million lines + 1.
>
> In the code, I still use 1,000,000 but now with a comment.
>
>> There is a similar wording for fixed-form which you overlooked:
> Ups - fixed.
>> If you think that we need testcases for fixed-form, add them,
>> or forget them. I don't bother.
> I added one.
>
>> - there are existing testcases continuation_5.f, continuation_6.f,
>> thus I suggest to rename your new continuation_{5,6}.f90 to
>> continuation_17.f90+ .
>
> Done. We are rather inconsistent whether we enumerate <file>.f{,90}
> together or separately; as the suffix is shown, either works.
>
>>
>> - I don't understand your new testcase line_length_14.f90 .
>> This is supposed to test -std=gnu, but then -std=gnu is not a
>> standard but a moving target, which is why you had to adjust
>> existing testcases.
>> So what does it buy us beyond line_length_1{2,3}.f90 ?
>
> Well, it ensures that the warning is not only shown for -std=f2023 but
> also for -std=f2028 and (current -std=gnu). In general, I think it is
> useful to check the lower and the upper bound.
>
> I have now removed it - as it is unlikely that we would regress on such
> changes.
>
>>> PPS: I did not bother adding .f23 as file extension; I believe that also
>>> .f18 is unsupported.
>> I never use extensions other than .f90 for portable code.
>
> Likewise - especially as '.f95' starts out as Fortran code that
> complies to -std=f95 but slowly Fortran 2003 or later code creeps in. I
> think that's fine but then one can also directly use .f90. (Most code
> does so.)
>
> Unless there are follow up comments, I will commit it later today.
>
> Thanks for the comments!
>
> Tobias
>
> PS: I fixed the wording issue in the subject line of the email and
> header. I first wrote 'support' but that sounded a bit as if F2023 is
> supported. Hence, I wrote 'Accept' and did not remove 'support'.
> -----------------
> Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201,
> 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer:
> Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München;
> Registergericht München, HRB 106955
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023
2024-01-02 19:31 ` Harald Anlauf
@ 2024-01-02 19:37 ` Steve Kargl
2024-01-02 19:51 ` Harald Anlauf
0 siblings, 1 reply; 9+ messages in thread
From: Steve Kargl @ 2024-01-02 19:37 UTC (permalink / raw)
To: Harald Anlauf; +Cc: Tobias Burnus, gcc-patches, fortran
On Tue, Jan 02, 2024 at 08:31:15PM +0100, Harald Anlauf wrote:
>
> we might want to update changes.html to reflect this. How about:
>
> diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
> index 403feb06..9b16f5e3 100644
> --- a/htdocs/gcc-14/changes.html
> +++ b/htdocs/gcc-14/changes.html
> @@ -284,6 +284,11 @@ a work-in-progress.</p>
>
> <h3 id="fortran">Fortran</h3>
> <ul>
> + <li>The compiler now accepts the <code>-std=f2023</code> option, which
> + has been added in preparation of support of Fortran 2023. This option
> + increases the line-length limit for source in free-form to 10000, and
> + statements may have up to 1 million characters.
> + </li>
> <li> With the <code>-save-temps</code> option, preprocessed files
> with the <code>.fii</code> extension will be generated from
> free-form source files such as <code>.F90</code> and
>
LGTM.
--
Steve
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023
2024-01-02 19:37 ` Steve Kargl
@ 2024-01-02 19:51 ` Harald Anlauf
0 siblings, 0 replies; 9+ messages in thread
From: Harald Anlauf @ 2024-01-02 19:51 UTC (permalink / raw)
To: sgk; +Cc: Tobias Burnus, gcc-patches, fortran
Am 02.01.24 um 20:37 schrieb Steve Kargl:
> On Tue, Jan 02, 2024 at 08:31:15PM +0100, Harald Anlauf wrote:
>>
>> we might want to update changes.html to reflect this. How about:
>>
>> diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
>> index 403feb06..9b16f5e3 100644
>> --- a/htdocs/gcc-14/changes.html
>> +++ b/htdocs/gcc-14/changes.html
>> @@ -284,6 +284,11 @@ a work-in-progress.</p>
>>
>> <h3 id="fortran">Fortran</h3>
>> <ul>
>> + <li>The compiler now accepts the <code>-std=f2023</code> option, which
>> + has been added in preparation of support of Fortran 2023. This option
>> + increases the line-length limit for source in free-form to 10000, and
>> + statements may have up to 1 million characters.
>> + </li>
>> <li> With the <code>-save-temps</code> option, preprocessed files
>> with the <code>.fii</code> extension will be generated from
>> free-form source files such as <code>.F90</code> and
>>
>
> LGTM.
>
Thanks, this is now pushed.
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2024-01-02 19:51 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-11-16 13:01 [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023 Tobias Burnus
2023-11-16 19:30 ` Harald Anlauf
2023-11-17 11:38 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 (was: [Patch] Fortran: Accept -std=f2023 support, update line-length for Fortran 2023) Tobias Burnus
2023-11-17 12:06 ` [Patch] Fortran: Accept -std=f2023, update line-length for Fortran 2023 Mikael Morin
2023-11-17 19:07 ` Harald Anlauf
2024-01-02 19:31 ` Harald Anlauf
2024-01-02 19:37 ` Steve Kargl
2024-01-02 19:51 ` Harald Anlauf
2023-11-17 3:38 ` [Patch] Fortran: Accept -std=f2023 support, " Jerry D
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