paste6.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 13 行

/* Regression test for paste appearing at the beginning of a set of
   actual arguments.  Original bug exposed by Linux kernel.  Problem
   reported by Jakub Jelinek <[e-mail]>.  */

/* { dg-do compile } */

extern int foo(int x);

#define bar(x) foo(x)
#define baz(x) bar(##x)

int quux(int y) { return baz(y); }  /* { dg-warning "valid preprocessing" } */