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* [Bug fortran/54679] New: Erroneous "Expected P edit descriptor" in conjunction with L descriptor
@ 2012-09-23 12:04 nmm1 at cam dot ac.uk
2012-09-23 12:19 ` [Bug fortran/54679] " nmm1 at cam dot ac.uk
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: nmm1 at cam dot ac.uk @ 2012-09-23 12:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54679
Bug #: 54679
Summary: Erroneous "Expected P edit descriptor" in conjunction
with L descriptor
Classification: Unclassified
Product: gcc
Version: 4.6.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: nmm1@cam.ac.uk
I get a spurious "Expected P edit descriptor in format string" in
conjunction with the L0 descriptor in a non-trivial format. Changing
the L0 to I0 or F0.0 works. It MAY be environment dependent, as I have
also failed to see it in another test program. The oprogram is not
worth attaching.
PROGRAM Main
IMPLICIT NONE
CHARACTER(LEN=*), PARAMETER :: &
format1 = "(A,1X,I2,1X,A,1X,I2,1X,A,2(1X,I0,1X),A,2(1X,I0,1X))", &
format2 = "(A,1X,I2,1X,A,1X,I2,1X,A,2(1X,I0,1X),A,2(1X,L0,1X))", &
format3 = "(A,1X,I2,1X,A,1X,I2,1X,A,2(1X,I0,1X),A,2(1X,F0.0,1X))"
PRINT format1
PRINT format2
PRINT format3
END PROGRAM Main
gives:
junk.f90:8.55:
PRINT format2
1
Error: Expected P edit descriptor in format string at (1)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/54679] Erroneous "Expected P edit descriptor" in conjunction with L descriptor
2012-09-23 12:04 [Bug fortran/54679] New: Erroneous "Expected P edit descriptor" in conjunction with L descriptor nmm1 at cam dot ac.uk
@ 2012-09-23 12:19 ` nmm1 at cam dot ac.uk
2012-09-23 16:24 ` kargl at gcc dot gnu.org
2013-06-27 9:21 ` dominiq at lps dot ens.fr
2 siblings, 0 replies; 4+ messages in thread
From: nmm1 at cam dot ac.uk @ 2012-09-23 12:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54679
--- Comment #1 from Nick Maclaren <nmm1 at cam dot ac.uk> 2012-09-23 12:19:00 UTC ---
Please reduce the severity to trivial, and change it to "Confusing
diagnostic"! It's my error, at root, but gfortran could do better.
I had forgotten the relevant constraint (C1006 in Fortran 2003).
However, the syntax rule R1005 on the same page specifies that a
width is mandatory for the L descriptor, so the actual error is
that a width of zero is erroneous.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/54679] Erroneous "Expected P edit descriptor" in conjunction with L descriptor
2012-09-23 12:04 [Bug fortran/54679] New: Erroneous "Expected P edit descriptor" in conjunction with L descriptor nmm1 at cam dot ac.uk
2012-09-23 12:19 ` [Bug fortran/54679] " nmm1 at cam dot ac.uk
@ 2012-09-23 16:24 ` kargl at gcc dot gnu.org
2013-06-27 9:21 ` dominiq at lps dot ens.fr
2 siblings, 0 replies; 4+ messages in thread
From: kargl at gcc dot gnu.org @ 2012-09-23 16:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54679
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P5
CC| |kargl at gcc dot gnu.org
Severity|normal |trivial
--- Comment #2 from kargl at gcc dot gnu.org 2012-09-23 16:24:01 UTC ---
(In reply to comment #1)
> Please reduce the severity to trivial, and change it to "Confusing
> diagnostic"! It's my error, at root, but gfortran could do better.
>
> I had forgotten the relevant constraint (C1006 in Fortran 2003).
> However, the syntax rule R1005 on the same page specifies that a
> width is mandatory for the L descriptor, so the actual error is
> that a width of zero is erroneous.
I agree that the error message is confusing. First, the F2008
constraint is
C1006 (R1008) w shall be zero or positive for the I, B, O, Z, F,
and G edit descriptors. w shall be positive for all other
edit descriptors.
Second, we have
10.8.5 P editing
The k P edit descriptor temporarily changes (9.5.2) the scale
factor for the connection to k . The scale factor affects the
editing done by the F, E, EN, ES, D, and G edit descriptors
for numeric quantities.
So P editing does not even apply to the L descriptor.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/54679] Erroneous "Expected P edit descriptor" in conjunction with L descriptor
2012-09-23 12:04 [Bug fortran/54679] New: Erroneous "Expected P edit descriptor" in conjunction with L descriptor nmm1 at cam dot ac.uk
2012-09-23 12:19 ` [Bug fortran/54679] " nmm1 at cam dot ac.uk
2012-09-23 16:24 ` kargl at gcc dot gnu.org
@ 2013-06-27 9:21 ` dominiq at lps dot ens.fr
2 siblings, 0 replies; 4+ messages in thread
From: dominiq at lps dot ens.fr @ 2013-06-27 9:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54679
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-06-27
Ever confirmed|0 |1
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Still present at revision 200429.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2012-09-23 12:04 [Bug fortran/54679] New: Erroneous "Expected P edit descriptor" in conjunction with L descriptor nmm1 at cam dot ac.uk
2012-09-23 12:19 ` [Bug fortran/54679] " nmm1 at cam dot ac.uk
2012-09-23 16:24 ` kargl at gcc dot gnu.org
2013-06-27 9:21 ` dominiq at lps dot ens.fr
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