hpux man page for isfinite

isfinite(3M)															      isfinite(3M)

NAME
       isfinite() - floating-point finiteness macro

SYNOPSIS
       floating-type

DESCRIPTION
       The  macro  determines  whether its argument has a finite value (zero, denormalized, or normalized, and not infinite or NaN).  The argument
       must be of floating type, and classification is based on the type of the argument.  For HP Integrity  servers,  the  argument  can  be  any
       floating type.  For PA-RISC, the argument must be either or

       The macro implements the functionality recommended by the IEEE-754 standard for floating-point arithmetic.

USAGE
       To use the macro, compile either with the default option or with the and options.  Make sure your program includes Link in the math library
       by specifying on the compiler or linker command line.

RETURN VALUE
       The macro returns a nonzero value if and only if its argument has a finite value.  The macro raises no floating-point exceptions.

ERRORS
       No errors are defined.

EXAMPLES
       Make sure a value is finite before continuing operations on it:

SEE ALSO
       fpclassify(3M), isinf(3M), isnan(3M), isnormal(3M), signbit(3M), math(5).

STANDARDS CONFORMANCE
																      isfinite(3M)