std::match_results::max_size

From cppreference.com
size_type max_size() const;
(since C++11)

Returns the maximum number of submatches the match_results type is able to hold due to system or library implementation limitations, i.e. std::distance(begin(), end()) for the largest number of submatches.

Contents

[edit] Parameters

(none)

[edit] Return value

Maximum number of submatches

[edit] Exceptions

noexcept specification:  
noexcept
  (since C++11)

[edit] Complexity

Constant.