blob: 0f4c6f145f1a28091d3dce57dc1f79741557dc71 [file] [log] [blame]
#ifndef SIGNAL_SUPPRESS
#include <signal.h>
#endif
float fnan = 1.0f/0.0f - 1.0f/0.0f;
float x = 1.0f;
void leave ()
{
exit (0);
}
main ()
{
#if ! defined (__vax__) && ! defined (_CRAY)
/* Move this line earlier, for architectures (like alpha) that issue
SIGFPE on the first comparisons. */
#ifndef SIGNAL_SUPPRESS
/* Some machines catches a SIGFPE when a NaN is compared.
Let this test succeed o such machines. */
signal (SIGFPE, leave);
#endif
/* NaN is an IEEE unordered operand. All these test should be false. */
if (fnan == fnan)
abort ();
if (fnan != x)
x = 1.0;
else
abort ();
if (fnan < x)
abort ();
if (fnan > x)
abort ();
if (fnan <= x)
abort ();
if (fnan >= x)
abort ();
if (fnan == x)
abort ();
#endif
exit (0);
}