blob: bca843547c545c288c879687f8648e1a25b4fdeb [file] [log] [blame]
/* Test NAN macro. */
/* { dg-do run } */
/* { dg-options "-std=c2x -pedantic-errors" } */
/* { dg-add-options ieee } */
#include <float.h>
/* This should be defined if and only if quiet NaNs are supported for
type float. If the testsuite gains effective-target support for
targets not supporting NaNs, or not supporting them for all types,
this test should be split into versions for targets with and
without NaNs for float. */
#ifndef NAN
#error "NAN undefined"
volatile float f = NAN;
extern void abort (void);
extern void exit (int);
main (void)
(void) _Generic (NAN, float : 0);
if (!__builtin_isnan (NAN))
abort ();
if (!__builtin_isnan (f))
abort ();
if (!__builtin_isnan (f + f))
abort ();
exit (0);