HP-UX Reference (11i v3 07/02) - 3 Library Functions A-M (vol 6)

i
islessequal(3M) islessequal(3M)
NAME
islessequal() - floating-point quiet comparison macro (<=)
SYNOPSIS
#include <math.h>
int islessequal(
floating-expr x, floating-expr
y);
DESCRIPTION
The islessequal()
macro determines whether its first argument is less than or equal to its second
argument. The value of
islessequal( x,y
) is always equal to (x)<=(y); however, unlike (
x)
<= (
y), islessequal( x,
y) does not raise 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
islessequal()
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 islessequal() macro returns the value of
(x)<=(y). The macro raises no floating-point
exceptions.
ERRORS
No errors are defined.
SEE ALSO
isgreater(3M), isgreaterequal(3M), isless(3M), islessgreater(3M), isunordered(3M), math(5).
STANDARDS CONFORMANCE
islessequal(): ISO/IEC C99
704 Hewlett-Packard Company − 1 − HP-UX 11i Version 3: February 2007