public member function
<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.
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;
}
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Output:
mylist contains: 21 32 12
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Iterator validity
No changes.