This is an internal header file, included by other library headers. More...

#include <bits/concept_check.h>
#include <debug/debug.h>

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Detailed Description

This is an internal header file, included by other library headers.

Do not attempt to use it directly. {iterator}

This file contains all of the general iterator-related utility functions, such as distance() and advance().

Function Documentation

namespace std _GLIBCXX_VISIBILITY ( default )

A generalization of pointer arithmetic.

Parameters

__first	An input iterator.
__last	An input iterator.

Returns n such that __first + n == __last. This requires that __last must be reachable from __first. Note that n may be negative.

For random access iterators, this uses their + and - operations and are constant time. For other iterator classes they are linear time.

A generalization of pointer arithmetic.

Parameters

__i	An input iterator.
__n	The delta by which to change `__i`.

This increments i by n. For bidirectional and random access iterators, __n may be negative, in which case __i is decremented.

For random access iterators, this uses their + and - operations and are constant time. For other iterator classes they are linear time.