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.
1) An implicit conversion.
2) An explicit conversion.
Return value
The matched character sequence as an object of the underlying std::basic_string type. If the matched member is false, then returns the empty string.
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