// Copyright © 2024 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See .
use malachite_base::num::arithmetic::traits::Parity;
use malachite_base::num::basic::integers::PrimitiveInt;
use malachite_base::num::basic::signeds::PrimitiveSigned;
use malachite_base::num::basic::unsigneds::PrimitiveUnsigned;
use malachite_base::test_util::generators::{signed_unsigned_pair_gen, unsigned_pair_gen};
#[test]
fn test_wrapping_pow() {
fn test(x: T, y: u64, out: T) {
assert_eq!(x.wrapping_pow(y), out);
let mut x = x;
x.wrapping_pow_assign(y);
assert_eq!(x, out);
}
test::(0, 0, 1);
test::(123, 0, 1);
test::(123, 1, 123);
test::(0, 123, 0);
test::(1, 123, 1);
test::(-1, 123, -1);
test::(-1, 124, 1);
test::(3, 3, 27);
test::(-10, 9, -1000000000);
test::(-10, 10, 1410065408);
test::(-10, 9, 13824);
test::(10, 9, -13824);
test::(123, 456, 2409344748064316129);
test::(0, u64::MAX, 0);
test::(1, u64::MAX, 1);
test::(123, u64::MAX, 3449391168254631603);
test::(0, u64::MAX, 0);
test::(1, u64::MAX, 1);
test::(-1, u64::MAX, -1);
test::(-1, u64::MAX - 1, 1);
test::(123, u64::MAX, 3449391168254631603);
test::(-123, u64::MAX, -3449391168254631603);
test::(-123, u64::MAX - 1, 4527249702272692521);
}
fn wrapping_pow_properties_helper_unsigned() {
unsigned_pair_gen::().test_properties(|(x, y)| {
let mut power = x;
power.wrapping_pow_assign(y);
assert_eq!(power, x.wrapping_pow(y));
});
}
fn wrapping_pow_properties_helper_signed() {
signed_unsigned_pair_gen::().test_properties(|(x, y)| {
let mut power = x;
power.wrapping_pow_assign(y);
assert_eq!(power, x.wrapping_pow(y));
if x != T::MIN {
let neg_pow = (-x).wrapping_pow(y);
if y.even() {
assert_eq!(neg_pow, power);
} else {
assert_eq!(neg_pow, power.wrapping_neg());
}
}
});
}
#[test]
fn wrapping_pow_properties() {
apply_fn_to_unsigneds!(wrapping_pow_properties_helper_unsigned);
apply_fn_to_signeds!(wrapping_pow_properties_helper_signed);
}