Mathematical Library Functions                  islessgreater(3M)



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

SYNOPSIS
     c99 [ flag... ] file... -lm [ library... ]
     #include 

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


DESCRIPTION
     The islessgreater() macro determines whether its first argu-
     ment  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).

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


     If x or y is NaN, 0 is returned.

ERORS
     No errors are defined.

USAGE
     The relational and  equality  operators  support  the  usual
     mathematical  relationships  between numeric values. For any
     ordered pair of numeric values, exactly one of the relation-
     ships  (less, greater, and equal) is true. Relational opera-
     tors can raise the  invalid  floating-point  exception  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) ver-
     sion of a relational operator. It facilitates writing  effi-
     cient  code  that  accounts for quiet NaNs without suffering
     the invalid floating-point exception. In the  SYNOPSIS  sec-
     tion,  real-floating  indicates  that  the  argument  is  an
     expression of real-floating type.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:









SunOS 5.11          Last change: 12 Jul 2006                    1






Mathematical Library Functions                  islessgreater(3M)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Standard                    
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     isgreater(3M),        isgreaterequal(3M),        isless(3M),
     islessequal(3M),   isunordered(3M),   math.h(3HEAD),  attri-
     butes(5), standards(5)










































SunOS 5.11          Last change: 12 Jul 2006                    2