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#include <fenv.h> // for feclearexcept, fetestexcept
#include <math.h> // for nearbyintf, rintf
float nearbyintf(float x)
{
#ifdef FE_INEXACT
#pragma STDC FENV_ACCESS ON
int e;
e = fetestexcept(FE_INEXACT);
#endif
x = rintf(x);
#ifdef FE_INEXACT
if (!e)
feclearexcept(FE_INEXACT);
#endif
return x;
}
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