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FINITE(3)                  Library Functions Manual                  FINITE(3)

NAME
     finite, finitef - tests for finite values

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     int
     finite(double x);

     int
     finitef(float x);

DESCRIPTION
     The finite() function returns the value 1 when

           -infinity < x < +infinity.

     Otherwise a zero is returned (that is, |x| = infinity or x is NaN).

SEE ALSO
     isfinite(3), math(3)

STANDARDS
     The described functions conform to IEEE Std 754-1985.  Note that unlike
     isfinite(3), neither function is present in the ISO C-language standards
     or in the IEEE POSIX standards.

HISTORY
     The finite and finitef() functions first appeared in 4.3BSD.

NetBSD 10.99                     July 28, 2011                    NetBSD 10.99