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* [Bug fortran/39490] New: Non-standard assignment of arrays of character objects
@ 2009-03-18 9:53 n dot pinhao at netvisao dot pt
2009-03-18 11:17 ` [Bug fortran/39490] " dominiq at lps dot ens dot fr
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: n dot pinhao at netvisao dot pt @ 2009-03-18 9:53 UTC (permalink / raw)
To: gcc-bugs
gfortran accepts the following syntax for the assignment of character objects:
CHARACTER(14) :: prop(4) = (/'name', 'data_file_name', 'Ho_units',
'mpolar_units'/)
Although this is convenient, is not according to the Fortran standard that
requires that all of the elements of a constructor be the same kind, type and
for characters, length.
According to this the correct syntax is:
CHARACTER(14) :: prop(4) = (/'name ', 'data_file_name', &
'Ho_units ', 'mpolar_units '/)
--
Summary: Non-standard assignment of arrays of character objects
Product: gcc
Version: 4.3.2
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: n dot pinhao at netvisao dot pt
GCC build triplet: Linux, x86_64 and i486
GCC host triplet: Linux, x86_64 and i486
GCC target triplet: Linux, x86_64 and i486
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39490
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/39490] Non-standard assignment of arrays of character objects
2009-03-18 9:53 [Bug fortran/39490] New: Non-standard assignment of arrays of character objects n dot pinhao at netvisao dot pt
@ 2009-03-18 11:17 ` dominiq at lps dot ens dot fr
2009-03-18 19:13 ` burnus at gcc dot gnu dot org
2009-03-28 8:28 ` [Bug fortran/39490] Invalid character constructor rejected at -std=gnu since 4.4 fxcoudert at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: dominiq at lps dot ens dot fr @ 2009-03-18 11:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from dominiq at lps dot ens dot fr 2009-03-18 11:17 -------
Confirmed on 4.3.3, trunk gives:
pr39490.f90:1.36:
CHARACTER(14) :: prop(4) = (/'name', 'data_file_name', 'Ho_units', 'mpolar_unit
1
Error: Different CHARACTER lengths (4/14) in array constructor at (1)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39490
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/39490] Non-standard assignment of arrays of character objects
2009-03-18 9:53 [Bug fortran/39490] New: Non-standard assignment of arrays of character objects n dot pinhao at netvisao dot pt
2009-03-18 11:17 ` [Bug fortran/39490] " dominiq at lps dot ens dot fr
@ 2009-03-18 19:13 ` burnus at gcc dot gnu dot org
2009-03-28 8:28 ` [Bug fortran/39490] Invalid character constructor rejected at -std=gnu since 4.4 fxcoudert at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-03-18 19:13 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from burnus at gcc dot gnu dot org 2009-03-18 19:12 -------
> Confirmed on 4.3.3
Well, I get also with 4.3.x an error with -std=f95.
The question is rather: Is is on purpose that it is rejected with -std=gnu with
4.4, while 4.2/4.3 accept it. (g95, sunf95 and NAG f95 reject it; while ifort
and openf95 accept it with default options.)
Another version of legal code is:
CHARACTER(14) :: prop(4) = (/ character(14) :: 'name', 'data_file_name',
'Ho_units','mpolar_units'/)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39490
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/39490] Invalid character constructor rejected at -std=gnu since 4.4
2009-03-18 9:53 [Bug fortran/39490] New: Non-standard assignment of arrays of character objects n dot pinhao at netvisao dot pt
2009-03-18 11:17 ` [Bug fortran/39490] " dominiq at lps dot ens dot fr
2009-03-18 19:13 ` burnus at gcc dot gnu dot org
@ 2009-03-28 8:28 ` fxcoudert at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: fxcoudert at gcc dot gnu dot org @ 2009-03-28 8:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from fxcoudert at gcc dot gnu dot org 2009-03-28 08:28 -------
This is work that Daniel Kraft and I did (well, I think he did the hard work
and I gave some loose sort of guidance). I seem to remember it was intentional
(it may have been discussed on the list around summer of 2008, but I can't find
it).
Regarding whether it's desirable or not, I think it is right to issue an error:
this is rather recent Fortran code, so people have virtually no reason for not
writing the proper constructor. (Accepting invalid code as a GNU extension
should be done sparsely.)
I'm thus closing as WONTFIX.
--
fxcoudert at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fxcoudert at gcc dot gnu dot
| |org
Status|UNCONFIRMED |RESOLVED
GCC build triplet|Linux, x86_64 and i486 |
GCC host triplet|Linux, x86_64 and i486 |
GCC target triplet|Linux, x86_64 and i486 |
Resolution| |WONTFIX
Summary|Non-standard assignment of |Invalid character
|arrays of character objects |constructor rejected at -
| |std=gnu since 4.4
Version|4.3.2 |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39490
^ permalink raw reply [flat|nested] 4+ messages in thread
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2009-03-18 9:53 [Bug fortran/39490] New: Non-standard assignment of arrays of character objects n dot pinhao at netvisao dot pt
2009-03-18 11:17 ` [Bug fortran/39490] " dominiq at lps dot ens dot fr
2009-03-18 19:13 ` burnus at gcc dot gnu dot org
2009-03-28 8:28 ` [Bug fortran/39490] Invalid character constructor rejected at -std=gnu since 4.4 fxcoudert at gcc dot gnu dot org
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