RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://cplusplus.com/reference/cmath/fdim/ below:

function

fdim

     double fdim  (double x     , double y);      float fdimf (float x      , float y);long double fdiml (long double x, long double y);

     double fdim (double x     , double y);      float fdim (float x      , float y);long double fdim (long double x, long double y);     double fdim (Type1 x      , Type2 y);       // additional overloads

Positive difference

Returns the positive difference between x and y.

The function returns x-y if x>y, and zero otherwise.

Header

<tgmath.h>

provides a type-generic macro version of this function.

Additional overloads

are provided in this header (

<cmath>

) for other combinations of

arithmetic types

(

Type1

and

Type2

): These overloads effectively cast its arguments to

double

before calculations, except if at least one of the arguments is of type

long double

(in which case both are casted to

long double

instead).

Parameters

x, y: Values whose difference is calculated.

Return Value The positive difference between x and y.

Example

/* fdim example */
#include <stdio.h>      /* printf */
#include <math.h>       /* fdim */

int main ()
{
  printf ("fdim (2.0, 1.0) = %f\n", fdim(2.0,1.0));
  printf ("fdim (1.0, 2.0) = %f\n", fdim(1.0,2.0));
  printf ("fdim (-2.0, -1.0) = %f\n", fdim(-2.0,-1.0));
  printf ("fdim (-1.0, -2.0) = %f\n", fdim(-1.0,-2.0));
  return 0;
}

Output:

fdim (2.0, 1.0) = 1.000000
fdim (1.0, 2.0) = 0.000000
fdim (-2.0,-1.0) = 0.000000
fdim (-1.0,-2.0) = 1.000000