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/* Test SNAN macros. Runtime exceptions test, to verify NaN is
signaling. */
/* { dg-do run } */
/* { dg-require-effective-target fenv_exceptions } */
/* { dg-options "-std=c23 -pedantic-errors -fsignaling-nans" } */
/* { dg-add-options ieee } */
#include <fenv.h>
#include <float.h>
/* This should be defined if and only if signaling NaNs is supported
for the given type. If the testsuite gains effective-target
support for targets not supporting signaling NaNs, this test
should be made appropriately conditional. */
#ifndef FLT_SNAN
#error "FLT_SNAN undefined"
#endif
volatile float f = FLT_SNAN;
extern void abort (void);
extern void exit (int);
int
main (void)
{
feclearexcept (FE_ALL_EXCEPT);
f += f;
if (!fetestexcept (FE_INVALID))
abort ();
exit (0);
}
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