mp_units::utility::operator+

Adds an integral scalar to a safe_int, checking for overflow.

Synopsis

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

template<typename U>
requires (detail::integral<U> && detail::same_sign_v<T, U>)
[[nodiscard]]
constexpr
safe_int</* implementation-defined */, ErrorPolicy>
operator+(
    safe_int lhs,
    U 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

the sum, as a safe_int of the promoted result type; triggers ErrorPolicy::on_overflow on overflow

Note	The return value should not be discarded.

Template Parameters

Name

Description

the integral scalar type

Parameters

Name

Description

lhs

the safe_int operand

rhs

the integral scalar to add

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