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_pair_gen, signed_triple_gen, unsigned_pair_gen_var_27, unsigned_triple_gen_var_19,
};
#[test]
fn test_wrapping_add_mul() {
fn test<T: PrimitiveInt>(x: T, y: T, z: T, out: T) {
assert_eq!(x.wrapping_add_mul(y, z), out);
let mut x = x;
x.wrapping_add_mul_assign(y, z);
assert_eq!(x, out);
}
test::<u8>(2, 3, 7, 23);
test::<u32>(7, 5, 10, 57);
test::<u64>(123, 456, 789, 359907);
test::<i32>(123, -456, 789, -359661);
test::<i128>(-123, 456, 789, 359661);
test::<i8>(127, -2, 100, -73);
test::<i8>(-127, 2, 100, 73);
test::<i8>(-128, 1, 0, -128);
test::<u8>(2, 20, 20, 146);
test::<i8>(-127, -2, 100, -71);
test::<i8>(127, 1, 100, -29);
test::<i8>(-127, -1, 100, 29);
test::<i8>(-127, -10, 100, -103);
}
fn wrapping_add_mul_properties_helper_unsigned<T: PrimitiveUnsigned>() {
unsigned_triple_gen_var_19::<T>().test_properties(|(x, y, z)| {
let result = x.wrapping_add_mul(y, z);
let mut x_alt = x;
x_alt.wrapping_add_mul_assign(y, z);
assert_eq!(x_alt, result);
assert_eq!(x.wrapping_add_mul(z, y), result);
assert_eq!(result.wrapping_sub_mul(y, z), x);
assert_eq!(x.overflowing_add_mul(y, z).0, result);
});
unsigned_pair_gen_var_27::<T>().test_properties(|(a, b)| {
assert_eq!(a.wrapping_add_mul(T::ZERO, b), a);
assert_eq!(a.wrapping_add_mul(T::ONE, b), a.wrapping_add(b));
assert_eq!(T::ZERO.wrapping_add_mul(a, b), a.wrapping_mul(b));
assert_eq!(a.wrapping_add_mul(b, T::ZERO), a);
assert_eq!(a.wrapping_add_mul(b, T::ONE), a.wrapping_add(b));
});
}
fn wrapping_add_mul_properties_helper_signed<T: PrimitiveSigned>() {
signed_triple_gen::<T>().test_properties(|(x, y, z)| {
let result = x.wrapping_add_mul(y, z);
let mut x_alt = x;
x_alt.wrapping_add_mul_assign(y, z);
assert_eq!(x_alt, result);
assert_eq!(x.wrapping_add_mul(z, y), result);
assert_eq!(result.wrapping_sub_mul(y, z), x);
assert_eq!(x.overflowing_add_mul(y, z).0, result);
});
signed_pair_gen::<T>().test_properties(|(a, b)| {
assert_eq!(a.wrapping_add_mul(T::ZERO, b), a);
assert_eq!(a.wrapping_add_mul(T::ONE, b), a.wrapping_add(b));
assert_eq!(T::ZERO.wrapping_add_mul(a, b), a.wrapping_mul(b));
assert_eq!(a.wrapping_add_mul(b, T::ZERO), a);
assert_eq!(a.wrapping_add_mul(b, T::ONE), a.wrapping_add(b));
});
}
#[test]
fn wrapping_add_mul_properties() {
apply_fn_to_unsigneds!(wrapping_add_mul_properties_helper_unsigned);
apply_fn_to_signeds!(wrapping_add_mul_properties_helper_signed);
}