compare(3M)

NAME
     isgreater, isgreaterequal, isless, islessequal, islessgreater -
     comparison macros

SYNOPSIS
     #include <math.h>

     int isgreater(real-floating x, real-floating y);
     int isgreaterequal(real-floating x, real-floating y);
     int isless(real-floating x, real-floating y);
     int islessequal(real-floating x, real-floating y);
     int islessgreater(real-floating x, real-floating y);

DESCRIPTION
     These routines are not available for programs compiled with the O32
     ABI.

     Functions in the standard math library (libm.a) are referred to as -lm
     versions. Those in the libmx library (libmx.a) are referred to as -lmx
     versions, and those in the the BSD math library (libm43.a) are
     referred to as -lm43 versions.  These routines are not available in
     the libmx and libm43 libraries.

     These macros are quiet (non floating-point exception raising) versions
     of the relational operators. real-floating in the synopsis lines
     indicates that the argument shall be an expression of real floating
     type.

     The isgreater macro determines if its first argument is greater than
     its second argument.

     The isgreaterequal macro determines if its first argument is greater
     than or equal to its second argument.

     The isless macro determines if its first argument is less than its
     second argument.

     The islessequal macro determines if its first argument is less than or
     equal to its second argument.

     The islessgreater macro determines if its first argument is less than
     or greater than its second argument.

NOTES
     Long double operations on this system are only supported in round to
     nearest rounding mode (the default).  The system must be in round to
     nearest rounding mode when calling any of the long double functions,
     or incorrect answers will result.

SEE ALSO
     math(3M), exp(3M)