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##### basic_static_string::rfind (4 of 5 overloads)

Find the last occurrence of a string within the string.

###### Synopsis

    constexpr basic_static_string::size_type
    rfind(
        basic_static_string::const_pointer s,
        basic_static_string::size_type pos = basic_static_string::npos) const noexcept;

###### Description

Finds the last occurrence of the string pointed to by `s` of length `count` within the string starting before or at the index `pos`, where `count` is `traits_type::length(s)`.

###### Complexity

Linear.

###### Return Value

The highest index `idx` less than or equal to `pos` where each element of `{s, s + count)` is equal to that of `{begin() + idx, begin() + idx + count)` if one exists, and `npos` otherwise.

###### Parameters

Name | Description
--- | ---
`s` | The string to search for.
`pos` | The index to stop searching at. The default argument for this parameter is `npos`.