xte::big_int::operator-=()

`xte::big_int<T>::operator-=()`

Defined in header <xte/math/big_int.hpp>

constexpr xte::big_int<T>& operator-=(const xte::big_int<T>& rhs) & noexcept(false);

Subtracts rhs from the big-integer. May throw if allocation fails.

#1

constexpr xte::big_int<T>& operator-=(xte::big_int<T>&& rhs) & noexcept(false);

Subtracts rhs from the big-integer. lhs is destructively moved-from. May throw if allocation fails.

constexpr auto i64_max = 9223372036854775807;
constexpr auto i64_min = -i64_max - 1;
xte::big_int n = u64_min;
n -= u64_max;
std::println("{}", n);

Output:

-18446744073709551615