// Test the optimal attribute in the out typemap %module typemap_out_optimal // Just the following languages tested #if defined (SWIGCSHARP) || defined (SWIGD) %typemap(out, optimal="1") SWIGTYPE %{ $result = new $1_ltype($1); %} #elif defined (SWIGJAVA) %typemap(out, optimal="1") SWIGTYPE %{ *($&1_ltype*)&$result = new $1_ltype($1); %} #elif defined (SWIGUTL) %typemap(out,noblock="1", optimal="1") SWIGTYPE { %set_output(SWIG_NewPointerObj(new $1_ltype($1), $&descriptor, SWIG_POINTER_OWN | %newpointer_flags)); } #endif %ignore XX::operator=; %inline %{ #include <iostream> using namespace std; struct XX { XX() { if (trace) cout << "XX()" << endl; } XX(int i) { if (trace) cout << "XX(" << i << ")" << endl; } XX(const XX &other) { if (trace) cout << "XX(const XX &)" << endl; } XX& operator =(const XX &other) { if (trace) cout << "operator=(const XX &)" << endl; return *this; } ~XX() { if (trace) cout << "~XX()" << endl; } // Note: best observed RVO for C#, Java and Python with g++-6 to g++-10 (just one constructor and one destructor call) static XX create() { return XX(123); } static const XX createConst() { return XX(456); } static bool trace; }; bool XX::trace = true; %}
Generated by dwww version 1.15 on Tue Jul 2 00:16:54 CEST 2024.