[execpol.objects]

# 26 Algorithms library [[algorithms]](./#algorithms)

## 26.3 Parallel algorithms [[algorithms.parallel]](algorithms.parallel#execpol.objects)

### 26.3.6 Execution policies [[execpol]](execpol#objects)

#### 26.3.6.7 Execution policy objects [execpol.objects]

[ð](#lib:seq)

`inline constexpr execution::sequenced_policy            execution::seq{ unspecified };
inline constexpr execution::parallel_policy             execution::par{ unspecified };
inline constexpr execution::parallel_unsequenced_policy execution::par_unseq{ unspecified };
inline constexpr execution::unsequenced_policy          execution::unseq{ unspecified };
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L795)

The header [<execution>](execution.syn#header:%3cexecution%3e "33.4 Header <execution> synopsis [execution.syn]") declares global objects associated with each type of execution policy[.](#1.sentence-1)
