7.12.14.1 The isgreater macro
Synopsis
#include <math.h>
int isgreater(real-floating x, real-floating y);
Description
The isgreater macro determines whether its first argument is greater than its second argument. The value of isgreater(x, y) is always equal to (x) > (y); however, unlike (x) > (y), isgreater(x, y) does not raise the “invalid” floating-point exception when x and y are unordered.
Returns
The isgreater macro returns the value of (x) > (y).