forward_list ::swap() es una función integrada en CPP STL que intercambia el contenido de la primera forward_list dada con otra forward_list.
Sintaxis:
swap(forward_list first, forward_list second)
or
forward_list1.swap(forward_list second)
Parámetros: La función acepta dos parámetros que se especifican a continuación:
- primero : la primera lista de reenvío
- segundo : el segundo forward_list
Valor devuelto: La función no devuelve nada. Intercambia ambas listas.
Los siguientes programas demuestran la función mencionada anteriormente:
Programa 1:
// CPP program that demonstrates the
// forward_list::swap() function
// when two parameters is passed
#include <bits/stdc++.h>
using namespace std;
int main()
{
// initialising the two forward_list
forward_list<int> firstlist = { 9, 8, 7, 6 };
forward_list<int> secondlist = { 10, 20, 30 };
// printing elements before the swap operation
// for firstlist and secondlist
cout << "Before swap operation firstlist was: ";
for (auto it = firstlist.begin(); it != firstlist.end(); ++it)
cout << *it << " ";
cout << "\nBefore swap operation secondlist was: ";
for (auto it = secondlist.begin(); it != secondlist.end(); ++it)
cout << *it << " ";
// swap operation on two lists
swap(firstlist, secondlist);
// printing elements after the swap operation
// for forward1 and secondlist
cout << "\n\nAfter swap operation firstlist is: ";
for (auto it = firstlist.begin(); it != firstlist.end(); ++it)
cout << *it << " ";
cout << "\nAfter swap operation secondlist is:";
for (auto it = secondlist.begin(); it != secondlist.end(); ++it)
cout << *it << " ";
return 0;
}
Producción:
Before swap operation firstlist was: 9 8 7 6 Before swap operation secondlist was: 10 20 30 After swap operation firstlist is: 10 20 30 After swap operation secondlist is:9 8 7 6
Programa 2:
// CPP program that demonstrates the
// forward_list::swap() function
// when two parameters is passed
#include <bits/stdc++.h>
using namespace std;
int main()
{
// initialising the two forward_list
forward_list<int> firstlist = { 9, 8, 7, 6 };
forward_list<int> secondlist = { 10, 20, 30 };
// printing elements before the swap operation
// for firstlist and secondlist
cout << "Before swap operation firstlist was: ";
for (auto it = firstlist.begin(); it != firstlist.end(); ++it)
cout << *it << " ";
cout << "\nBefore swap operation secondlist was: ";
for (auto it = secondlist.begin(); it != secondlist.end(); ++it)
cout << *it << " ";
// swap operation on two lists
firstlist.swap(secondlist);
// printing elements after the swap operation
// for forward1 and secondlist
cout << "\n\nAfter swap operation firstlist is: ";
for (auto it = firstlist.begin(); it != firstlist.end(); ++it)
cout << *it << " ";
cout << "\nAfter swap operation secondlist is:";
for (auto it = secondlist.begin(); it != secondlist.end(); ++it)
cout << *it << " ";
return 0;
}
Producción:
Before swap operation firstlist was: 9 8 7 6 Before swap operation secondlist was: 10 20 30 After swap operation firstlist is: 10 20 30 After swap operation secondlist is:9 8 7 6
Publicación traducida automáticamente
Artículo escrito por Twinkl Bajaj y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA