The facility test for less than or equal to comparison.

This facility is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <math.h>

int islessequal(x, y)

Parameters for this facility are:

x	float, double or long double	number compared
y	float, double or long double	number compared

Unlike x<y || x==y islessequal does not raise an invalid exception when x and y are unordered.

This facility is true if x is less than or equal to y.