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# _finite

Visual Studio 2012

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

```int _finite(
double x
);
```

## Parameters

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

_finite

<float.h>

For more compatibility information, see Compatibility in the Introduction.