The following code fails to compile with GCC 2.95.3, but is OK with GCC 3.3.3
(and also GCC 2.96 from RedHat):
/* test.c:2: badly punctuated parameter list in `#define' */
#define TRACE(args ...) printf(## args)
#define log(format, args...) printf("<%s:%s:%d>, " format, __FILE__,
__FUNCTION__, __LINE__, ## args)
int main(void)
{
log("Log %s ...\n", "this");
/* test.c:10: parse error before `)' */
log("Empty log ...\n");
}
* <Space> after "args" and before "..." in a macro fails to compile with the
error:
test.c:2: badly punctuated parameter list in `#define'
* "Macro-call" with empty args fails to compile with the error:
test.c:10: parse error before `)'
A <space> needs to be inserted at "__LINE__ ,"
--
Summary: Problem with varargs in #define-macro
Product: gcc
Version: 2.95.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ingemar dot fransson at micronic dot se
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18171
