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std::regex_traits::length(3) C++ Standard Libary std::regex_traits::length(3) NAME std::regex_traits::length - std::regex_traits::length Synopsis static std::size_t length( const char_type* p ); Calculates the length of a null-terminated character sequence, that is, the smallest i such that p[i] == 0. Standard library specializations of std::regex_traits execute std::char_traits<CharT>::length(p);. Parameters p - pointer to the first element of the null-terminated character sequence Return value The length of the null-terminated character string. Example // Run this code #include <iostream> #include <regex> int main() { std::cout << std::regex_traits<char>::length("") << '\n' << std::regex_traits<wchar_t>::length(L"") << '\n'; } Output: 10 5 http://cppreference.com 2024.06.10 std::regex_traits::length(3)
NAME | Synopsis | Parameters | Return value | Example | Output:
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