Determines whether given double-precision floating point value is finite.
int _finite( double x );
| Function | Required Header | Compatibility |
| _finite | <float.h> | Win 95, Win NT |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
| LIBC.LIB | Single thread static library, retail version |
| LIBCMT.LIB | Multithread static library, retail version |
| MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
_finite returns a nonzero value (TRUE) if its argument x is not infinite, that is, if –INF < x < +INF. It returns 0 (FALSE) if the argument is infinite or a NaN.
Parameter
x
Double-precision floating-point value