<?php
function add($overflowsTimes, $augend, $addend){
$sum = $augend + $addend;
if(is_float($sum)){
$sum = $addend - (PHP_INT_MAX - $augend);
$overflowsTimes++;
}elseif($sum < 0){
$sum = PHP_INT_MAX + $sum;
$overflowsTimes--;
}
return [
$overflowsTimes,
$sum
];
}
assert(add(0, 0, 0) === [0, 0]);
assert(add(0, 100, 200) === [0, 300]);
assert(add(0, PHP_INT_MAX - 100, 100) === [0, PHP_INT_MAX]);
assert(add(0, PHP_INT_MAX, 100) === [1, 100]);
assert(add(0, PHP_INT_MAX, 1000) === [1, 1000]);
assert(add(0, PHP_INT_MAX, PHP_INT_MAX) === [1, PHP_INT_MAX]);
assert(add(1, 0, 0) === [1, 0]);
assert(add(1, 100, 200) === [1, 300]);
assert(add(1, PHP_INT_MAX - 100, 100) === [1, PHP_INT_MAX]);
assert(add(1, PHP_INT_MAX, 100) === [2, 100]);
assert(add(1, PHP_INT_MAX, 1000) === [2, 1000]);
assert(add(1, PHP_INT_MAX, PHP_INT_MAX) === [2, PHP_INT_MAX]);
assert(add(2, 0, 0) === [2, 0]);
assert(add(2, 100, 200) === [2, 300]);
assert(add(2, PHP_INT_MAX - 100, 100) === [2, PHP_INT_MAX]);
assert(add(2, PHP_INT_MAX, 100) === [3, 100]);
assert(add(2, PHP_INT_MAX, 1000) === [3, 1000]);
assert(add(2, PHP_INT_MAX, PHP_INT_MAX) === [3, PHP_INT_MAX]);
- Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
preferences:
201.72 ms | 403 KiB | 254 Q