------- Comment #3 from rguenth at gcc dot gnu dot org 2009-12-20 13:11 -------
Works for me. The preprocessed source is certainly not what was compiled
(I assume the linkage specification of btowc was actually different).
Working testcase, robustened against -std=c99:
extern int __btowc_alias (int __c) __asm ("btowc");
extern __inline int
__attribute__ ((__nothrow__,gnu_inline)) btowc (int __c)
{
return (__builtin_constant_p (__c)
&& __c >= '\0'
&& __c <= '\x7f' ? __c : __btowc_alias (__c));
}
int main()
{
btowc (-1);
return 0;
}
In reply to comment #2 - this is a standard technique used in glibc.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |WORKSFORME
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440
