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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

_finite

Determines whether the given double-precision floating-point value is finite.

int _finite( 
   double x 
);

x

Double-precision floating-point value.

_finite returns a nonzero value if its argument x is not infinite; that is, if –INF < x < +INF. It returns 0 if the argument is infinite or a NAN.

Function

Required header

_finite

<float.h>

For more compatibility information, see Compatibility in the Introduction.

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