std::map<Key,T,Compare,Allocator>::begin, std::map<Key,T,Compare,Allocator>::cbegin
From cppreference.com
iterator begin(); |
(1) | (noexcept since C++11) (constexpr since C++26) |
const_iterator begin() const; |
(2) | (noexcept since C++11) (constexpr since C++26) |
const_iterator cbegin() const noexcept; |
(3) | (since C++11) (constexpr since C++26) |
Returns an iterator to the first element of *this.
If *this is empty, the returned iterator will be equal to end().
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