Standard library header <latch> (C++20)
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This header is part of the thread support library.
Classes
[edit] Synopsis
namespace std { class latch; }
[edit] Class std::latch
namespace std { class latch { public: static constexpr ptrdiff_t max() noexcept; constexpr explicit latch(ptrdiff_t expected); ~latch(); latch(const latch&) = delete; latch& operator=(const latch&) = delete; void count_down(ptrdiff_t update = 1); bool try_wait() const noexcept; void wait() const; void arrive_and_wait(ptrdiff_t update = 1); private: ptrdiff_t counter; // exposition only }; }