islessgreater man page on SmartOS

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islessgreater(3M)	Mathematical Library Functions	     islessgreater(3M)

       islessgreater - test if x is less than or greater than y

       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       int islessgreater(real-floating x, real-floating y);

       The islessgreater() macro determines whether its first argument is less
       than or greater than its second argument. The islessgreater(x, y) macro
       is similar to (x) < (y) || (x) > (y); however, islessgreater(x, y) does
       not raise the  invalid  floating-point  exception  when	x  and	y  are
       unordered (nor does it evaluate x and y twice).

       Upon successful completion, the islessgreater() macro returns the value
       of (x) < (y) || (x) > (y).

       If x or y is NaN, 0 is returned.

       No errors are defined.

       The relational and equality operators support  the  usual  mathematical
       relationships  between  numeric values. For any ordered pair of numeric
       values, exactly one of the relationships (less, greater, and equal)  is
       true.  Relational operators can raise the invalid floating-point excep‐
       tion when argument values are NaNs. For a NaN and a numeric  value,  or
       for  two NaNs, just the unordered relationship is true. This macro is a
       quiet (non-floating-point exception raising) version  of	 a  relational
       operator. It facilitates writing efficient code that accounts for quiet
       NaNs without suffering the invalid  floating-point  exception.  In  the
       SYNOPSIS	 section,  real-floating  indicates  that  the	argument is an
       expression of real-floating type.

       See attributes(5) for descriptions of the following attributes:

       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       │Interface Stability	     │Standard			   │
       │MT-Level		     │MT-Safe			   │

       isgreater(3M),	isgreaterequal(3M),    isless(3M),    islessequal(3M),
       isunordered(3M), math.h(3HEAD), attributes(5), standards(5)

SunOS 5.11			  12 Jul 2006		     islessgreater(3M)

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