std::list<T,Allocator>::reverse

 

C++

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array (C++11)

vector

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inplace_vector (C++26)

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list

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std::list

Member functions
list::list list::~list list::operator= list::assign list::assign_range (C++23)   list::get_allocator Element access list::front list::back Iterators list::beginlist::cbegin (C++11) list::endlist::cend (C++11) list::rbeginlist::crbegin (C++11) list::rendlist::crend (C++11) Capacity list::size list::empty list::max_size	Modifiers list::clear list::insert list::insert_range (C++23) list::emplace (C++11) list::erase list::push_front list::emplace_front (C++11) list::prepend_range (C++23) list::pop_front list::push_back list::emplace_back (C++11) list::append_range (C++23) list::pop_back list::resize list::swap Operations list::merge list::splice list::removelist::remove_if list::reverse list::unique list::sort
Non-member functions
operator==operator<=> (C++20) swap(std::list) erase(std::list)erase_if(std::list) (C++20)(C++20)	operator!=operator<operator>operator<=operator>= (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)
Deduction guides(C++17)

 

void reverse();		(noexcept since C++11)

Reverses the order of the elements in the container. No references or iterators become invalidated.

Parameters

(none)

Return value

(none)

Complexity

Linear in the size of the container.

Example

Run this code

#include <iostream>
#include <list>
 
std::ostream& operator<<(std::ostream& ostr, const std::list<int>& list)
{
    for (auto& i : list)
        ostr << ' ' << i;
    return ostr;
}
 
int main()
{
    std::list<int> list = {8, 7, 5, 9, 0, 1, 3, 2, 6, 4};
    std::cout << "initially: " << list << '\n';
 
    list.sort();
    std::cout << "ascending: " << list << '\n';
 
    list.reverse();
    std::cout << "descending:" << list << '\n';
}

Output:

initially:  8 7 5 9 0 1 3 2 6 4
ascending:  0 1 2 3 4 5 6 7 8 9
descending: 9 8 7 6 5 4 3 2 1 0

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
LWG 1207	C++98	it was unclear whether iterators and/or references will be invalidated	keep valid

See also

sort	sorts the elements (public member function)