1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
%module cpp11_reference_wrapper
// SWIG could provide some sort of typemaps for reference_wrapper which is acts like a C++ reference,
// but is copy-constructible and copy-assignable
%inline %{
#include <iostream>
#include <functional>
using namespace std;
struct B {
B(int &val) : val(val) {}
std::reference_wrapper<int> val;
// int &val;
};
%}
%inline %{
void go() {
int val(999);
B b1(val);
int const& aa1 = b1.val;
cout << aa1 << endl;
// copy constructible
B b2(b1);
int const& aa2 = b2.val;
cout << aa2 << endl;
// copy assignable
B b3(val);
b3 = b1;
int const& aa3 = b3.val;
cout << aa3 << endl;
}
%}
|
