std::sub_match<BidirIt>::sub_match
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std::sub_match 
 
 
 Member functions
sub_match::sub_match
 Non-member functions
(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
constexpr sub_match();
 
 (since C++11) 
Default constructs a std::sub_match . The matched member is set to false and the inherited members first and second are value-initialized.
This is the only publicly accessible and defined constructor.
[edit] Example
Run this code
#include <cassert> #include <regex> int main() { std::sub_match <const char*> s; assert (!s.matched); }