std::sub_match<BidirIt>::operator string_type, std::sub_match<BidirIt>::str
From cppreference.com
| operator string_type() const; |
(1) | |
| string_type str() const; |
(2) | |
Converts to an object of the underlying std::basic_string type.
The first version is an implicit conversion, the second one is explicit.
Parameters
(none)
Return value
Returns the matched character sequence as an object of the underlying std::basic_string type. If the matched member is false, then the empty string is returned.
Complexity
Linear in the length of the underlying character sequence.
Example
Run this code
#include <cassert> #include <iostream> #include <regex> #include <string> int main() { const std::string html{R"("<a href="https://cppreference.com/">)"}; const std::regex re{"(http|https|ftp)://([a-z]+)\\.([a-z]{3})"}; std::smatch parts; std::regex_search(html, parts, re); for (std::ssub_match const& sub : parts) { const std::string s = sub; // (1) implicit conversion assert(s == sub.str()); // (2) std::cout << s << '\n'; } }
Output:
https://cppreference.com https cppreference com