isunordered man page on HP-UX

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isunordered(3M)						       isunordered(3M)

NAME
       isunordered() - floating-point comparison macro (unordered)

SYNOPSIS
       floating-expr floating-expr

DESCRIPTION
       The  macro  determines  whether its arguments are unordered.  The argu‐
       ments are unordered if at least one argument is a NaN.

       The arguments must be of floating type.	For HP Integrity servers,  the
       arguments can be any floating type.  For PA-RISC, each argument must be
       either or

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 1 if its arguments are unordered (that is, if	either
       argument is a NaN) and 0 otherwise.  The macro raises no floating-point
       exceptions.

ERRORS
       No errors are defined.

SEE ALSO
       isgreater(3M), isgreaterequal(3M), isless(3M), islessequal(3M), isless‐
       greater(3M), math(5).

STANDARDS CONFORMANCE
							       isunordered(3M)
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