huge-val1.c

来自「用于进行gcc测试」· C语言 代码 · 共 34 行

// PR c++/23139: HUGE_VAL definition should be accepted with -pedantic.
// Origin: Joseph Myers <[e-mail]>
// { dg-do link }
// { dg-options "-pedantic-errors" }

#include <math.h>

double d = HUGE_VAL;
#ifdef HUGE_VALF
float f = HUGE_VALF;
#endif
#ifdef HUGE_VALL
long double l = HUGE_VALL;
#endif

extern void link_failure ();

int
main ()
{
#ifdef __GLIBC__
  if (HUGE_VAL != __builtin_huge_val ())
    link_failure ();
#ifdef HUGE_VALF
  if (HUGE_VALF != __builtin_huge_valf ())
    link_failure ();
#endif
#ifdef HUGE_VALL
  if (HUGE_VALL != __builtin_huge_vall ())
    link_failure ();
#endif
#endif
}