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dft_tools/doc/reference/arrays/containers/swap_0.cpp

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#include <triqs/arrays.hpp>
#include <iostream>
using triqs::arrays::vector;
using triqs::arrays::range;
int main() {
triqs::arrays::vector<double> V(3), W(4);
V() = 3;
W() = 4; // initialize
auto VV = V(range(0, 2));
auto VW = W(range(0, 2));
std::cout << "V = " << V << " W = " << W << " V view " << VV << " W view " << VW << std::endl;
swap(V, W);
std::cout << "V = " << V << " W = " << W << " V view " << VV << " W view " << VW << std::endl;
swap(VV, VW);
std::cout << "V = " << V << " W = " << W << " V view " << VV << " W view " << VW << std::endl;
}