--TEST--
Test for operator overloading of arithmetic operations.
--SKIPIF--
<?php
require_once 'includes/loaded.php';
require_once 'includes/supports.php';
if (is_php_arma_loaded()) {
    supports_operator_overloading();
}
?>
--FILE--
<?php

require_once 'includes/assert.php';

$mat  = Arma\IMat::init(2, 2, Arma\Fill::RANDN);
$mat1 = Arma\IMat::init(2, 2, Arma\Fill::RANDN);

$mat1->forEach(function (Arma\MapVal $elem) {
    if ($elem->val() == 0) {
        $elem->setTo(7);
    }
});

batch_assert_mat('operator overloading of arithmetic operations',
    [$mat->add($mat1),    $mat + $mat1],
    [$mat->add(1),        $mat + 1],
    [$mat->sub($mat1),    $mat - $mat1],
    [$mat->sub(2),        $mat - 2],
    [$mat->neg(),         -$mat],
    [$mat->mul($mat1),    $mat * $mat1],
    [$mat->mul(2),        $mat * 2],
    [$mat->dotMul($mat1), $mat % $mat1],
    [$mat->div($mat1),    $mat / $mat1],
    [$mat->div(2),        $mat / 2]
);

$mat2 = $mat->div($mat1);
$mat3 = $mat1->add($mat2);
$mat4 = $mat2->mul($mat3);
$mat5 = $mat3->sub($mat4);
$mat1 -= $mat *= $mat1 += $mat /= $mat1;

batch_assert_mat('operator overloading of arithmetic operations', [$mat5, $mat1]);

?>
--EXPECT--