# std::match_results<BidirIt,Alloc>::suffix

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< cpp‎ | regex‎ | match results

const_reference suffix() const; |  | (since C++11)

Obtains a reference to the std::sub_match object representing the target sequence between the end of the entire match of the regular expression and the end of the target sequence.

The behavior is undefined unless ready() is true.

### Parameters

(none)

### Return value

Reference to the unmatched suffix.

### Example

Run this code

    #include <iostream>
    #include <regex>
    #include <string>

    int main()
    {
        std::regex re("a(a)*by");
        std::string target("baaaby123");
        std::smatch sm;

        std::regex_search(target, sm, re);
        std::cout << sm.suffix() << '\n';
    }

Output:

    123

### See also

prefix | returns sub-sequence between the beginning of the target sequence and the beginning of the full match. (public member function)

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