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* [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables
@ 2011-03-27 20:08 burnus at gcc dot gnu.org
2011-03-27 20:09 ` [Bug fortran/48303] " burnus at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: burnus at gcc dot gnu.org @ 2011-03-27 20:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
Summary: [Legacy] Support Character constants in DATA statement
for non-character variables
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: burnus@gcc.gnu.org
Reported on freenode's #fortran.
The following program uses:
DATA ZERO,ONE,TWO,THREE,FOUR,FIVE,SIX,SEVEN,EIGHT,
& RNINE,TEN/'-','1','2','3','4','5','6','7','8','9','T'/
which almost all my compilers accept as vendor extension; however, gfortran
only accepts Hollerith constants (even more common vendor extension) in DATA:
DATA ZERO,ONE,TWO,THREE,FOUR,FIVE,SIX,SEVEN,EIGHT,
& RNINE,TEN/1H-,1H1,1H2,1H3,1H4,1H5,1H6,1H7,1H8,1H9,1HT/
Expected: As -std=legacy extension, also accept in DATA character literals.
The full program is the first one in the list at
http://www.netl.doe.gov/technologies/oil-gas/software/simulat.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/48303] [Legacy] Support Character constants in DATA statement for non-character variables
2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
@ 2011-03-27 20:09 ` burnus at gcc dot gnu.org
2011-03-27 23:08 ` steven at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: burnus at gcc dot gnu.org @ 2011-03-27 20:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-03-27 19:18:32 UTC ---
Created attachment 23784
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23784
Longer example
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/48303] [Legacy] Support Character constants in DATA statement for non-character variables
2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
2011-03-27 20:09 ` [Bug fortran/48303] " burnus at gcc dot gnu.org
@ 2011-03-27 23:08 ` steven at gcc dot gnu.org
2011-03-27 23:52 ` steven at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: steven at gcc dot gnu.org @ 2011-03-27 23:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |steven at gcc dot gnu.org
--- Comment #2 from Steven Bosscher <steven at gcc dot gnu.org> 2011-03-27 22:01:04 UTC ---
What are the semantics supposed to be of this extension? Make the variables
assigned in the data implicitly typed CHARACTER?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/48303] [Legacy] Support Character constants in DATA statement for non-character variables
2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
2011-03-27 20:09 ` [Bug fortran/48303] " burnus at gcc dot gnu.org
2011-03-27 23:08 ` steven at gcc dot gnu.org
@ 2011-03-27 23:52 ` steven at gcc dot gnu.org
2011-03-28 0:03 ` steven at gcc dot gnu.org
2013-06-22 13:28 ` dominiq at lps dot ens.fr
4 siblings, 0 replies; 6+ messages in thread
From: steven at gcc dot gnu.org @ 2011-03-27 23:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
--- Comment #3 from Steven Bosscher <steven at gcc dot gnu.org> 2011-03-27 23:08:20 UTC ---
Interpret them as Hollerith constants? Something like this extremely crude code
from the hip:
/* Only DATA Statements come here. */
if (!conform)
{
/* Numeric can be converted to any other numeric. And Hollerith can be
converted to any other type. */
if ((gfc_numeric_ts (&lvalue->ts) && gfc_numeric_ts (&rvalue->ts))
|| rvalue->ts.type == BT_HOLLERITH)
return SUCCESS;
if (lvalue->ts.type == BT_LOGICAL && rvalue->ts.type == BT_LOGICAL)
return SUCCESS;
/* In legacy mode, accept CHARACTER data, interpreted as a Hollerith
constant. */
if (lvalue->ts.type != rvalue->ts.type
&& rvalue->ts.type == BT_CHARACTER
&& rvalue->ts.kind == gfc_default_character_kind)
{
gfc_expr *e;
unsigned i, l;
if (gfc_notify_std (GFC_STD_LEGACY, "Shame on you at %C ")
== FAILURE)
return FAILURE;
l = rvalue->value.character.length;
e = gfc_get_constant_expr (BT_HOLLERITH, gfc_default_character_kind,
&rvalue->where);
e->representation.string = XCNEWVEC (char, l + 1);
for (i = 0; i < l; i++)
{
gfc_char_t c = rvalue->value.character.string[i];
e->representation.string[i] = (char) c;
}
*rvalue = *e; /* ??? Not sure how to replace rvalue with the new e */
return SUCCESS;
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/48303] [Legacy] Support Character constants in DATA statement for non-character variables
2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
` (2 preceding siblings ...)
2011-03-27 23:52 ` steven at gcc dot gnu.org
@ 2011-03-28 0:03 ` steven at gcc dot gnu.org
2013-06-22 13:28 ` dominiq at lps dot ens.fr
4 siblings, 0 replies; 6+ messages in thread
From: steven at gcc dot gnu.org @ 2011-03-28 0:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.03.27 23:08:42
Ever Confirmed|0 |1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/48303] [Legacy] Support Character constants in DATA statement for non-character variables
2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
` (3 preceding siblings ...)
2011-03-28 0:03 ` steven at gcc dot gnu.org
@ 2013-06-22 13:28 ` dominiq at lps dot ens.fr
4 siblings, 0 replies; 6+ messages in thread
From: dominiq at lps dot ens.fr @ 2013-06-22 13:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48303
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
No activity since more than two years. IMO this should go under the section
6.2 Extensions not implemented in GNU Fortran
of the manual. I can submit a draft patch for this PR if someone is will to fix
my Frenglish and formatting issues and do the commit.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-03-27 20:08 [Bug fortran/48303] New: [Legacy] Support Character constants in DATA statement for non-character variables burnus at gcc dot gnu.org
2011-03-27 20:09 ` [Bug fortran/48303] " burnus at gcc dot gnu.org
2011-03-27 23:08 ` steven at gcc dot gnu.org
2011-03-27 23:52 ` steven at gcc dot gnu.org
2011-03-28 0:03 ` steven at gcc dot gnu.org
2013-06-22 13:28 ` dominiq at lps dot ens.fr
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