forward_list::before_begin() is an inbuilt function in CPP STL which returns a iterator which points to the position before the first element of the forward_list.
Parameters: The function does not accept any parameter.
Return value: The function returns an iterator which points to the position before the first element of the forward_list.
Below program demonstrates the above function:
Element of the list are: 10 20 30 40 50
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