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#include <float.h> // for LDBL_MANT_DIG, LDBL_MAX_EXP
#include <math.h> // for nearbyintl, rintl
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double nearbyintl(long double x)
{
return nearbyint(x);
}
#else
#include <fenv.h> // for feclearexcept, fetestexcept
long double nearbyintl(long double x)
{
#ifdef FE_INEXACT
#pragma STDC FENV_ACCESS ON
int e;
e = fetestexcept(FE_INEXACT);
#endif
x = rintl(x);
#ifdef FE_INEXACT
if (!e)
feclearexcept(FE_INEXACT);
#endif
return x;
}
#endif
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