C++/List/list swap
Версия от 17:21, 25 мая 2010; (обсуждение)
Swap values between two lists
<source lang="cpp">
- include <iostream>
using std::cout; using std::endl;
- include <list> // list class-template definition
- include <algorithm> // copy algorithm
- include <iterator> // ostream_iterator
int main() {
int array[ 4 ] = { 2, 6, 4, 8 }; std::list< int > values; // create list of ints std::list< int > otherValues; // create list of ints std::ostream_iterator< int > output( cout, " " ); // insert items in values values.push_front( 1 ); values.push_front( 3 ); values.push_back( 4 ); values.push_back( 2 ); cout << "values contains: "; std::copy( values.begin(), values.end(), output ); otherValues.insert( otherValues.begin(), array, array + 4 ); cout << "\n\notherValues contains: "; std::copy( otherValues.begin(), otherValues.end(), output ); values.swap( otherValues ); cout << "\n\nvalues contains: "; std::copy( values.begin(), values.end(), output ); cout << "\n\notherValues contains: "; std::copy( otherValues.begin(), otherValues.end(), output ); cout << endl; return 0;
}
/*
values contains: 3 1 4 2 otherValues contains: 2 6 4 8 values contains: 2 6 4 8 otherValues contains: 3 1 4 2
*/ </source>