Return whether the operands have the same value.

Synopsis

Declared in <bslstl_optional.h>

template<class t_TYPE>
constexpr
bool
operator==(
    bsl::optional<t_TYPE> const& value,
    bsl::nullopt_t const& nullopt) noexcept;

Description

Return true if the specified value is disengaged, and false otherwise. This function can be called in constant expressions only if t_TYPE is not allocator‐aware.

Return Value

true if value is disengaged, and false otherwise

Parameters

Name

Description

value

value compared with or used to initialize the optional

nullopt

disengaged‐optional tag; value is unused

Created with MrDocs