In this lesson, we'll see the implementation of the second look-up function for regex statements: regex_search.

std::regex_search checks if a text contains a text pattern. We can use the function with and without an std::match_results object and apply it to a C string, a C++ string, or a range.

The example below shows how to use std::regex_search with texts of type const char*, std::string, const wchar_t*, and std::wstring.

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