/*
---
name: gcd()
category:
  - core/function
---
Return greatest common divisor

### scss
```scss
//
// @param   int  $a  The number to be divided
// @param   int  $b  The number to divide
// @return  int  The number of the remainder
//

@use "node_modules/sass-basis/src/css/core";

$gcd: core.gcd(4, 8);
```
*/

@function gcd($a, $b) {
  $r: $a % $b;
  @while $r != 0 {
    $a: $b;
    $b: $r;
    $r: $a % $b;
  }
  @return $b;
}