https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86125
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |9.0
Resolution|--- |FIXED
Target Milestone|--- |9.0
Known to fail| |8.2.0
--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
The warning has been enhanced to detect the strlen mismatch in r268251, but it
requires -Wextra. This was done to avoid diagnosing some more-or-less benign
mismatches (like in const qualifiers) but I don't think it applies as well when
the mismatch is between an integer and pointer. But I suppose tightening that
up will need to wait for the future. Let me resolve this as fixed and think
about opening a new bug for that.
$ gcc -S -Wall -Wextra pr86125.c
pr86125.c:1:7: warning: conflicting types for built-in function ‘strdup’;
expected ‘char *(const char *)’ [-Wbuiltin-declaration-mismatch]
1 | char* strdup (int); // warning (good)
| ^~~~~~
pr86125.c:2:7: warning: mismatch in return type of built-in function ‘strlen’;
expected ‘long unsigned int’ [-Wbuiltin-declaration-mismatch]
2 | char* strlen (const char*); // missing warning
| ^~~~~~
