C++ List reverse() Usage and Example

C++ List (List)

C ++ The List reverse() function can reverse the order of elements in the list container.

Syntax

void reverse();

Parameters

It does not contain any parameters.

Return value

It does not return any value.

Example1

Let's look at a simple example when the list contains integer values.

Example

#include iostream
#include<list>
using namespace std;
int main()
{
　　　std::list<int> li={1,2,3,4,5,6};
　　　　cout << "The content of list li is:";
　　　　for(list<int>::iterator itr=li.begin();itr!=li.end();++itr)
　　　　cout <<*itr;
　　　　li.reverse();
　　　　cout << '\n';
　　　　cout << "After reversal, the content of list li is:";
　　　　for(list<int>::iterator itr=li.begin();itr!=li.end();++itr)
　　　　cout <<*itr;
　　　　cout << '\n';
　　　　return 0;
}

Output:

The content of list li is:　123456
After reversal, the content of list li is:　654321

In this example, the reverse() function reverses the content of the list li, and the output is654321.

Example2

Let's look at a simple example when the list elements are strings

Example

#include iostream
#include<list>
using namespace std;
int main()
{
　　　std::list<string> li={"mango", "is", "a", "fruit"};
　　　　cout << "The content of list li is:";
　　　　for(list<string>::iterator itr = li.begin(); itr != li.end();++itr)
　　　　cout <<*itr << " \";
　　　　li.reverse();
　　　　cout << '\n';
　　　　cout << "After reversal, the content of list li is:";
　　　　for(list<string>::iterator itr = li.begin(); itr != li.end();++itr)
　　　　cout <<*itr << " \";
　　　　cout << '\n';
　　　　　return 0;
}

Output:

The content of the list li is: 'mango is a fruit'
After reversing, the content of the list li is: 'fruit a is mango'

In this example, the reverse() function reverses the list of strings and the output is 'fruit a is mango'.

C++ List (List)