islessequal.3m (2010 09)
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
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1