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#include <math.h>
int __isnormalf(float x);
int __isnormald(double x);
int __isnormall(long double x);
#define isnormal(x) ((sizeof (x) == sizeof (float)) ? __isnormalf(x) : \
(sizeof (x) == sizeof (double)) ? __isnormald(x) : __isnormall(x))
/*
STDC(199901)
LINK(m)
*/
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