`fold_range`

template <typename T, typename Op>
T fold_range(const T *values, std::size_t first, std::size_t last, T identity, Op op) noexcept

Parameters

Name	Type	Description
`values`	`const T *`
`first`	`std::size_t`
`last`	`std::size_t`
`identity`	`T`	The value an empty range folds to.
`op`	`Op`

T

Folds [first, last) in ascending index order, starting from the identity.