On Aug 6 2007 04:26, Al Viro wrote:
>
> C99 6.10.3[11]: preprocessing directive within the argument list
>of macro invocation => undefined behaviour. Don't do that...
String concatenation ("a" "b") is not a preprocessing directive.
$ gcc -E test.c
# 1 "test.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "test.c"
printf("a" "b");
(If it was, the "a" "b" would have already been joined.)
Jan
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