Difference between revisions of "Template:cpp/container/begin"
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Constant | Constant | ||
{{#if:{{#pos:{{{1}}}|set}}|{{cpp/container/constant iterator note}}}} | {{#if:{{#pos:{{{1}}}|set}}|{{cpp/container/constant iterator note}}}} | ||
| + | |||
| + | ===Notes=== | ||
| + | Note that both iterator and const_iterator are Constant {{named req|ForwardIterator}}s, and thus none of these methods return an iterator that can be used to mutate the elements of the container. | ||
===Example=== | ===Example=== | ||
Revision as of 07:59, 25 June 2018
| iterator begin() noexcept; |
(since {std}) | |
| const_iterator begin() const noexcept; |
(since {std}) | |
| const_iterator cbegin() const noexcept; |
(since {std}) | |
Returns an iterator to the first element of the container.
If the container is empty, the returned iterator will be equal to end().
Contents |
Parameters
(none)
Return value
Iterator to the first element
Complexity
Constant
Notes
Note that both iterator and const_iterator are Constant LegacyForwardIterators, and thus none of these methods return an iterator that can be used to mutate the elements of the container.
Example
| This section is incomplete Reason: no example |
See also
| returns an iterator to the end (public member function of std::{{{1}}})
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