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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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20
libc/math/fmaxl.c Normal file
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#include "libc/math/math.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double fmaxl(long double x, long double y)
{
return fmax(x, y);
}
#else
long double fmaxl(long double x, long double y)
{
if (isnan(x))
return y;
if (isnan(y))
return x;
/* handle signed zeros, see C99 Annex F.9.9.2 */
if (signbit(x) != signbit(y))
return signbit(x) ? y : x;
return x < y ? y : x;
}
#endif