use core::{
fmt::Debug,
ops::{Mul, MulAssign},
};
mod helper_macros;
fn test_mul<'a, T>(a: &'a T, b: &'a T, c: &'a T)
where
T: Mul<T, Output = T>,
T: Mul<&'a T, Output = T>,
&'a T: Mul<T, Output = T>,
&'a T: Mul<&'a T, Output = T>,
T: MulAssign<T>,
T: MulAssign<&'a T>,
T: Clone,
T: Debug,
T: Eq,
{
assert_eq!(a * b, *c);
assert_eq!(a.clone() * b, *c);
assert_eq!(a * b.clone(), *c);
assert_eq!(a.clone() * b.clone(), *c);
let mut x = a.clone();
x *= b;
assert_eq!(x, *c);
let mut x = a.clone();
x *= b.clone();
assert_eq!(x, *c);
}
#[test]
fn test_mul_ubig() {
let test_cases = [
(ubig!(0), ubig!(4), ubig!(0)),
(ubig!(0), ubig!(1) << 100, ubig!(0)),
(ubig!(3), ubig!(4), ubig!(12)),
(
ubig!(0x123456789abc),
ubig!(0x444333222111fff),
ubig!(0x4daae4d8531f8de7e1fb5ae544),
),
(
ubig!(1),
ubig!(0x123456789123456789123456789123456789),
ubig!(0x123456789123456789123456789123456789),
),
(
ubig!(0x10),
ubig!(0x123456789123456789123456789123456789),
ubig!(0x1234567891234567891234567891234567890),
),
(
ubig!(0x1000000000000000),
ubig!(0x123456789123456789123456789123456789),
ubig!(0x123456789123456789123456789123456789000000000000000),
),
(
ubig!(0x123456789123456789123456789123456789123456789123456789),
ubig!(0xabcdefabcdefabcdefabcdefabcdef),
ubig!(0xc379ab6dbd40ef67e528bfffd3039491348e20491348e20491348d5ccf67db24c3a1cca8f7891375de7),
),
(ubig!(5), ubig!(1) << 50, ubig!(5) << 50),
(ubig!(5), ubig!(1) << 100, ubig!(5) << 100),
];
for (a, b, c) in &test_cases {
test_mul(a, b, c);
test_mul(b, a, c);
}
}
#[test]
fn test_mul_ibig() {
let test_cases = [
(ibig!(3), ibig!(4), ibig!(12)),
(ibig!(-3), ibig!(4), ibig!(-12)),
(ibig!(-3), ibig!(-4), ibig!(12)),
];
for (a, b, c) in &test_cases {
test_mul(a, b, c);
test_mul(b, a, c);
}
}
#[test]
#[allow(clippy::op_ref, clippy::erasing_op)]
fn test_mul_ubig_primitive() {
assert_eq!(ubig!(3) * 4u8, ubig!(12));
assert_eq!(ubig!(3) * &4u8, ubig!(12));
assert_eq!(&ubig!(3) * 4u8, ubig!(12));
assert_eq!(&ubig!(3) * &4u8, ubig!(12));
assert_eq!(4u8 * ubig!(3), ubig!(12));
assert_eq!(4u8 * &ubig!(3), ubig!(12));
assert_eq!(&4u8 * ubig!(3), ubig!(12));
assert_eq!(&4u8 * &ubig!(3), ubig!(12));
let mut x = ubig!(3);
x *= 2u8;
x *= &2u8;
assert_eq!(x, ubig!(12));
}
#[test]
#[allow(clippy::op_ref)]
fn test_mul_ibig_primitive() {
assert_eq!(ibig!(-3) * -4, ibig!(12));
assert_eq!(ibig!(-3) * &-4, ibig!(12));
assert_eq!(&ibig!(-3) * -4, ibig!(12));
assert_eq!(&ibig!(-3) * &-4, ibig!(12));
assert_eq!(-4 * ibig!(-3), ibig!(12));
assert_eq!(-4 * &ibig!(-3), ibig!(12));
assert_eq!(&-4 * ibig!(-3), ibig!(12));
assert_eq!(&-4 * &ibig!(-3), ibig!(12));
let mut x = ibig!(-3);
x *= 2;
x *= &-2;
assert_eq!(x, ibig!(12));
}
#[test]
fn test_mul_ubig_ibig() {
let test_cases = [
(ubig!(0), ibig!(4), ibig!(0)),
(ubig!(0), ibig!(1) << 100, ibig!(0)),
(ubig!(4), ibig!(0), ibig!(0)),
(ubig!(1) << 100, ibig!(0), ibig!(0)),
(ubig!(3), ibig!(4), ibig!(12)),
(ubig!(3), ibig!(-4), ibig!(-12)),
(
ubig!(0x123456789abc),
ibig!(0x444333222111fff),
ibig!(0x4daae4d8531f8de7e1fb5ae544),
),
(
ubig!(0x123456789abc),
ibig!(-0x444333222111fff),
ibig!(-0x4daae4d8531f8de7e1fb5ae544),
),
(
ubig!(1),
ibig!(-0x123456789123456789123456789123456789),
ibig!(-0x123456789123456789123456789123456789),
),
(
ubig!(0x10),
ibig!(-0x123456789123456789123456789123456789),
ibig!(-0x1234567891234567891234567891234567890),
),
(
ubig!(0x1000000000000000),
ibig!(-0x123456789123456789123456789123456789),
ibig!(-0x123456789123456789123456789123456789000000000000000),
),
(
ubig!(0x123456789123456789123456789123456789123456789123456789),
ibig!(-0xabcdefabcdefabcdefabcdefabcdef),
ibig!(-0xc379ab6dbd40ef67e528bfffd3039491348e20491348e20491348d5ccf67db24c3a1cca8f7891375de7),
),
(ubig!(5), ibig!(-1) << 50, ibig!(-5) << 50),
(ubig!(5), ibig!(-1) << 100, ibig!(-5) << 100),
];
for (a, b, c) in &test_cases {
assert_eq!(a * b, *c);
assert_eq!(a.clone() * b, *c);
assert_eq!(a * b.clone(), *c);
assert_eq!(a.clone() * b.clone(), *c);
let mut x = b.clone();
x *= a;
assert_eq!(x, *c);
let mut x = b.clone();
x *= a.clone();
assert_eq!(x, *c);
}
}
#[test]
fn test_sqr() {
let test_cases = [
(ubig!(0), ubig!(0)),
(ubig!(1), ubig!(1)),
(ubig!(10), ubig!(100)),
(ubig!(1) << 16, ubig!(1) << 32),
((ubig!(1) << 64) - ubig!(1), (ubig!(1) << 128) - (ubig!(1) << 65) + ubig!(1)),
((ubig!(1) << 128) - ubig!(2), (ubig!(1) << 256) - (ubig!(1) << 130) + ubig!(4)),
((ubig!(1) << 128) - ubig!(2), (ubig!(1) << 256) - (ubig!(1) << 130) + ubig!(4)),
];
for (a, b) in test_cases {
assert_eq!(a.square(), b);
assert_eq!((-a).square(), b);
}
let pow3 = [
ubig!(847288609443),
ubig!(717897987691852588770249),
ubig!(515377520732011331036461129765621272702107522001),
ubig!(265613988875874769338781322035779626829233452653394495974574961739092490901302182994384699044001),
ubig!(70550791086553325712464271575934796216507949612787315762871223209262085551582934156579298529447134158154952334825355911866929793071824566694145084454535257027960285323760313192443283334088001),
ubig!(4977414122938492192881464029729961679802517669640314331069754317413863193300588672960378941038799444233797200629740876278809425638436874294137213623651683084623545115805694417048191856898335577690331770093271154442020977681305435856437590481321498962517248672813060123683011804992094505499691756946329466238029256908317387659245893361869285485179777099016847012698558309358412176001),
];
for ab in pow3.windows(2) {
let a = ab.first().unwrap();
let b = ab.last().unwrap();
assert_eq!(&a.square(), b);
assert_eq!(&(-a).square(), b);
}
}