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| Text encoding identifications | |||||||||||||||||||||||||
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| Classes | ||||
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| Algorithms | ||||
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| Iterators | ||||
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| Regex Grammar | ||||
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| Member functions | ||||
sub_match::strsub_match::operator string_type | ||||
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(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20) | ||||
operator string_type()const; | (1) | |
string_type str()const; | (2) | |
Converts to an object of the underlyingstd::basic_string type.
The matched character sequence as an object of the underlyingstd::basic_string type. If thematched member isfalse, then returns the empty string.
Linear in the length of the underlying character sequence.
#include <cassert>#include <iostream>#include <regex>#include <string> int main(){conststd::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_matchconst& sub: parts){conststd::string s= sub;// (1) implicit conversionassert(s== sub.str());// (2)std::cout<< s<<'\n';}}
Output:
https://cppreference.comhttpscppreferencecom
