Standard library header  (C++20) (original) (raw)

This header is part of the thread support library.

[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 }; }