std::latch::arrive_and_wait

Atomically decrements the internal counter by n and (if necessary) blocks the calling thread until the counter reaches zero. Equivalent to count_down(n); wait();.

# Declarations

void arrive_and_wait( std::ptrdiff_t n = 1 );

(since C++20)

# Parameters

• n: the value by which the internal counter is decreased

# Return value

(none)