NAME
islessgreater() — floating-point quiet comparison macro (<>)
SYNOPSIS
#include <math.h>
int islessgreater(
floating-expr
x,
floating-expr
y);
DESCRIPTION
The
islessgreater()
macro determines whether its first argument is less than or greater
than its second argument, without raising the invalid exception when
x
and
y
are unordered.
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
double
or
float.
USAGE
To use the
islessgreater()
macro, compile either with the default
-Ae
option or with the
-Aa
and
-D_HPUX_SOURCE
options. Make sure your program includes
<math.h>.
Link in the math library by specifying
-lm
on the compiler or linker command line.
RETURN VALUE
The
islessgreater()
macro returns the value 1 if
(x) < (y)
or ("
(x) > (y),
and returns zero otherwise.
The macro raises no floating-point exceptions.
ERRORS
No errors are defined.
STANDARDS CONFORMANCE
islessgreater(): ISO/IEC C99
Printable version
