pr15698-4.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 10 行

/* Test diagnostics for old-style definition not matching prior
   prototype are present and give correct location for that prototype
   (bug 15698).  Unprototyped built-in function with user prototype.  */
/* Origin: Joseph Myers <[e-mail]> */
/* { dg-do compile } */
/* { dg-options "-std=gnu99" } */

int isnan(void); /* { dg-error "error: prototype declaration" } */
int isnan(a) int a; {} /* { dg-error "error: number of arguments doesn't match prototype" } */