Returns whether the range contains the given value.

Synopsis

Declared in <folly/algorithm/simd/Contains.h>

template<
    typename R,
    typename T>
requires detail::contains_haystack_needle_test<R, T>()
bool
contains(
    R&& r,
    T x);
Note

This function is defined as an Algorithm Function Object (AFO).

Return Value

True if the range contains the value, false otherwise.

Parameters

Name

Description

r

The range to search.

x

The value to search for.

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