public member function

std::forward_list::cbegin

<forward_list>
const_iterator cbegin() const noexcept;
Return const_iterator to beginning
Returns a const_iterator pointing to the first element in the container.

A const_iterator is an iterator that points to const content. This iterator can be increased and decreased (unless it is itself also const), just like the iterator returned by forward_list::begin, but it cannot be used to modify the contents it points to.

Parameters

none

Return Value

A const_iterator to the beginning of the sequence.

Member type const_iterator is a forward iterator type.

Example

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// forward_list::cbegin/cend example
#include <iostream>
#include <forward_list>

int main ()
{
  std::forward_list<int> mylist = { 21, 32, 12 };

  std::cout << "myarray contains:";
  for ( auto it = mylist.cbegin(); it != mylist.cend(); ++it )
    std::cout << " " << *it;   // cannot modify *it

  std::cout << std::endl;

  return 0;
}


Output:
mylist contains: 21 32 12

Complexity

Constant.

Iterator validity

No changes.

See also