<!-- Collection of code snippets by Arne Vajhøj -->
<!-- from articles on eksperten.dk / vajhoej.dk (2004-now) -->
<?php
namespace UnitTest;

class IntVector {
    private $v;
    public function __construct($arg) {
        if(is_int($arg)) {
            $this->v = array_fill(0, $arg, 0);
        } else if(is_array($arg) && is_int($arg[0])) {
            $this->v = $arg;
        } else {
            throw new \Exception('Bad argument to IntVector ctor');
        }
    }
    public function add($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = $this->v[$i] + $k;
        return new IntVector($res);
    }
    public function sub($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = $this->v[$i] - $k;
        return new IntVector($res);
    }
    public function mul($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = $this->v[$i] * $k;
        return new IntVector($res);
    }
    public function div($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = (int)($this->v[$i] / $k);
        return new IntVector($res);
    }
    public function mod($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = $this->v[$i] - (int)($this->v[$i] / $k);
        return new IntVector($res);
    }
    /*
    public function mod($k) {
        $res = array();
        for ($i = 0; $i < count($this->v); $i++) $res[$i] = $this->v[$i] - (int)($this->v[$i] / $k) * $k;
        return new IntVector($res);
    }
    */
    public function size() {
        return count($this->v);
    }
    public function getV() {
        return $this->v;
    }
}

?>