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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12513
Summary: macro past '##' behaving differently that prev. and
other C/C++ compilers
Product: gcc
Version: 3.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jerry_williams at candle dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: lnx SuSe 7.1 Intel
GCC host triplet: lnx Suse 7.1 Intel
GCC target triplet: lnx SuSe 7.1 Intel
The following source process macro past correctly, but yields error msg and
non-sero return, supresses object and link.
foo.c =:
#define __STRINGIZE(_STR_) #_STR_
#define _STRINGIZE(_STR_) __STRINGIZE(_STR_)
#define _SOURCE_(_1_) _1_##.h
#define -SOURCEPATH(_1_) _STRINGIZE(dir/##_1)
#include _SOURCPATH(lib/_SOURCE_(foo)
at dir/lib/ is foo.h =: (hello world)
#include <stdio.h>
int main()
{
printf("hello, world\n");
return(0);
}
GCC verion: 3.3.1
gcc build options default (none)
gcc command line: gcc -save-temps foo.c
command output:
foo.c:9:40: pasting "/" and :lib" does not give a valid preprocessing token
foc.c:9:40: pasting "foo" and "." does not give a valid preprocessing token
