28 Regular expressions library [re]

28.9 Class template sub_match [re.submatch]

28.9.1 sub_match members [re.submatch.members]

constexpr sub_match();

1

Effects: Value-initializes the pair base class subobject and the member matched.

difference_type length() const;

2

Returns: (matched ? distance(first, second) : 0).

operator string_type() const;

3

Returns: matched ? string_type(first, second) : string_type().

string_type str() const;

4

Returns: matched ? string_type(first, second) : string_type().

int compare(const sub_match& s) const;

5

Returns: str().compare(s.str()).

int compare(const string_type& s) const;

6

Returns: str().compare(s).

int compare(const value_type* s) const;

7

Returns: str().compare(s).