mp_units::utility::operator-

Subtraction operator

Synopsis

Declared in <mp-units/utility/safe_int.h>

template<typename U, typename CP>
  requires detail::integral<U>
[[nodiscard]] constexpr safe_int</* implementation-defined */, ErrorPolicy> operator-(constrained<U, CP> lhs,
                                                                                      safe_int rhs);

Note

This function is a hidden friend of safe_int, declared only inside that class: it can be found only through argument-dependent lookup.

Return Value

Wraps an integral type with overflow detection.

Note

The return value should not be discarded.

Parameters

Name	Description
lhs	The left operand
rhs	The right operand