std::experimental::optional<T>:: operator bool
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cpp
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experimental
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optional
C++
Experimental
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std::experimental::optional
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optional::operator bool
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constexpr
explicit
operator
bool
(
)
const
noexcept
;
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(техническая спецификация библиотеки fundamentals) | |
Проверяет, содержит ли * this значение.
Параметры
(нет)
Возвращаемое значение
true если * this содержит значение, false если * this не содержит значения.