C++

Reference

<regex>

sub_match

public member function
<regex>

std::sub_match::sub_match

constexptr sub_match();
Construct sub_match
Constructs a sub_match object, initializing its member matched to false.

Its data members inherited from pair (first and second) are undefined at this point and shall not be dereferenced.

Parameters

none

See also

sub_match
Sub-expression match (class template)