std::forward_list<T,Allocator>::before_begin,cbefore_begin (3) - Linux Manuals
std::forward_list<T,Allocator>::before_begin,cbefore_begin: std::forward_list<T,Allocator>::before_begin,cbefore_begin
Command to display std::forward_list<T,Allocator>::before_begin,cbefore_begin manual in Linux: $ man 3 std::forward_list<T,Allocator>::before_begin,cbefore_begin
NAME
std::forward_list<T,Allocator>::before_begin,cbefore_begin - std::forward_list<T,Allocator>::before_begin,cbefore_begin
Synopsis
iterator before_begin() noexcept; (since C++11)
const_iterator before_begin() const noexcept; (since C++11)
const_iterator cbefore_begin() const noexcept; (since C++11)
Returns an iterator to the element before the first element of the container. This element acts as a placeholder, attempting to access it results in undefined behavior. The only usage cases are in functions insert_after(), emplace_after(), erase_after(), splice_after() and the increment operator: incrementing the before-begin iterator gives exactly the same iterator as obtained from begin()/cbegin().
Parameters
(none)
Return value
Iterator to the element before the first element.
Complexity
Constant.
See also
begin returns an iterator to the beginning
cbegin (public member function)
end_ returns an iterator to the end
cend (public member function)
Pages related to std::forward_list<T,Allocator>::before_begin,cbefore_begin
- std::forward_list<T,Allocator>::begin,std::forward_list<T,Allocator>::cbegin (3) - std::forward_list<T,Allocator>::begin,std::forward_list<T,Allocator>::cbegin
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- std::forward_list<T,Allocator>::merge (3) - std::forward_list<T,Allocator>::merge
- std::forward_list<T,Allocator>::operator= (3) - std::forward_list<T,Allocator>::operator=
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