------- Comment #3 from burnus at gcc dot gnu dot org 2007-11-28 13:54 -------
If no explicit interface is known, the following produces is almost all cases
invalid code:
CALL SUB(A,I)
CALL SUB(A)
Other compilers detect this such as NAG f95:
Error: line 5: Different number of arguments from the first call of SUB
or g95:
Warning (154): Inconsistent number of arguments in reference to 'sub' at (1)
and (2)
> OK, thanks. I realize the difficulty here when routines are complied
> separately
Currently, gfortran does not do in-file consistency checks. Though this is
planned. It won't help for if they are compiled separately.
> but perhaps a warning might be possible at the linking stage...
No, the linking is done by the linker and not the compiler and it has not such
knowledge. It only sees whether a symbol ("sub_") can be resolved or not.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |burnus at gcc dot gnu dot
| |org
Severity|blocker |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC build triplet|i686-pc-linux-gnu |
GCC host triplet|i686-pc-linux-gnu |
GCC target triplet|i686-pc-linux-gnu |
Keywords| |diagnostic
Last reconfirmed|0000-00-00 00:00:00 |2007-11-28 13:54:16
date| |
Summary|present returns wrong value |Give warning if procedure
|of optional variables |with implicit interface is
| |called with different
| |arguments
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34260
