Golang's CGO supports calling C + + methods

This is a creation in Article, where the information may have evolved or changed.

C + + extern "C"

C.h

1 #pragma once2 3 #ifdef __cplusplus4 extern "C" {5 #endif6 void Test () 7 #ifdef __cplusplus    8}9 #endif

C.c

1 #include "cplus.hpp" 2 #include "c.h" 3 4 void Test () {5     A *a = new B (); 6     a->test (); 7}

Cplus.hpp

1 #pragma once 2  3 class A {4     public:5         virtual void Test (); 6}; 7 class B:public A {8     public:9         V OID test (); 10};

Cplus.cpp

#include <iostream> #include "cplus.hpp" using namespace Std;void a::test () {    cout << "A" << Endl;} void B::test () {    cout << "B" << Endl;}

build.sh

1 g++-o cplus.o-c cplus.cpp2 g++-o c.o-c c.c3 ar r libc_test.so c.o cplus.o

Test.go

1 package main 2//#cgo Ldflags:-L. -lc_test-lstdc++ 3//#cgo CFLAGS:-I./4//#include "c.h" 5 import "C" 6  7 func main () {8      9     c.test () 10
  
   11}
  

Execution order

1./build.sh2 Go Build test.go