<cmath> (math.h)

macro
<cmath> <ctgmath>

isgreater

macro
isgreater(x,y)
function
bool isgreater (float x      , float y);
bool isgreater (double x     , double y);
bool isgreater (long double x, long double y);
Is greater
Returns whether x is greater than y.

If one or both arguments are NaN, the function returns false, but no FE_INVALID exception is raised (note that the expression x>y may raise such an exception in this case).

In C, this is implemented as a macro that returns an int value. The type of both x and y shall be float, double or long double.
In C++, it is implemented with function overloads for each floating-point type, each returning a bool value.

Parameters

x, y
Values to be compared.

Return value

The same as (x)>(y):
true (1) if x is greater than y.
false (0) otherwise.

Example

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
/* isgreater example */
#include <stdio.h>      /* printf */
#include <math.h>       /* isgreater, log */

int main ()
{
  double result;
  result = log (10.0);

  if (isgreater(result,0.0))
    printf ("log(10.0) is positive");
  else
    printf ("log(10.0) is not positive");

  return 0;
}


Output:

log(10.0) is positive

See also