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_finite

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

int _finite( 
   double x 
);

Parameter

x
Double-precision floating-point value.

Return 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.

Requirements

Function Required header Compatibility
_finite <float.h> Win 98, Win Me, Win NT, Win 2000, Win XP

For additional compatibility information, see Compatibility in the Introduction.

Libraries

All versions of the C run-time libraries.

See Also

Floating-Point Support Routines | _isnan | _fpclass | Run-Time Routines and .NET Framework Equivalents

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