[barrier.syn]

# 32 Concurrency support library [[thread]](./#thread)

## 32.9 Coordination types [[thread.coord]](thread.coord#barrier.syn)

### 32.9.3 Barriers [[thread.barrier]](thread.barrier#barrier.syn)

#### 32.9.3.2 Header <barrier> synopsis [barrier.syn]

[ð](#header:%3cbarrier%3e)

namespace std {template<class CompletionFunction = *see below*>class barrier;}
