https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77410
Bug ID: 77410
Summary: macro reference supplied as macro reference argument
is not expanded
Product: gcc
Version: 5.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: af804 at bfn dot org
Target Milestone: ---
Created attachment 39516
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39516&action=edit
utl1.c - demonstrates macro expansion problem
linux (built from source)
kernel 3.18.1
Target: x86_64-unknown-linux-gnu
Configured with: /home/jhart/temp5/gcc-5.3.0/configure --prefix=/usr
--enable-languages=c,c++,fortran --disable-multilib
Thread model: posix
gcc version 5.3.0 (GCC)
to compile : gcc utl1.c -o utl1.o
message {
utl1.c:5:6: error: conflicting types for 'MDNMx'
void MDNMx(void);
^
utl1.c:3:8: note: previous declaration of 'MDNMx' was here
int m1(MDNM)(void);
^
utl1.c:2:18: note: in definition of macro 'm1'
#define m1(mdnm) mdnm##x
}
MDNM macro is not expanded for m1 macro reference
if utl1 is used in place of MDNM macro reference in m1 reference argument,
conflict report is correct
