HP-UX Reference (11i v1 00/12) - 3 Library Functions A-M (vol 6)

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man3/!!!intro.3c
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islessequal(3M) islessequal(3M)
NAME
islessequal() - floating-point 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 macro can be used with either double or float arguments.
The ISO/ANSI C committee has approved the islessequal() macro for inclusion in the C9X draft
standard.
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).
ERRORS
No errors are defined.
SEE ALSO
isgreater(3M), isgreaterequal(3M), isless(3M), islessgreater(3M), isunordered(3M), math(5).
Section 3−−472 − 1 − HP-UX Release 11i: December 2000
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