std::list::clear

 

C++

Language

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Regular expressions library (C++11)

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std::list

Member functions

list::list

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Element access

list::front

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Iterators

list::begin list::cbegin (C++11)

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Capacity

list::empty

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Modifiers

list::clear

list::insert

list::emplace (C++11)

list::erase

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list::emplace_front (C++11)

list::pop_front

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list::emplace_back (C++11)

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void clear();

Removes all elements from the container.

Invalidates any references, pointers, or iterators referring to contained elements. May invalidate any past-the-end iterators.

Parameters

(none)

Return value

(none)

Exceptions

noexcept specification:  

noexcept

  (since C++11)

Complexity

Linear in the size of the container.

clear is defined in terms of erase, which has linear complexity.	(until C++11)
clear is not defined in terms of erase, but LWG 2231 proposes to define clear to have linear complexity for sequence containers.	(since C++11)

See also

erase	erases elements (public member function)