cgo的效率 golang_golang cgo

1 cplus.h

class A {

public:

virtual void test();

};

class B: public A {

public:

void test();

};

2 cplus.cpp

#include "cplus.h"

#include

using namespace std;

void A::test(){

cout<

}

void B::test(){

cout<

}

3 ctest.h

#ifndef __cplusplus

extern "C" {

#endif

void test();

#ifdef  __cplusplus

}

#endif

4 ctest.cpp

#include "ctest.h"

#include "cplus.h"

void test(){

A *a = new B();

a->text();

}

5 bulid.sh

g++ -o cplus.o -c cplus.cpp

g++ -o ctest.o -c ctest.cpp

ar  r libc_test.so c.o cplus.o

6 test.go

package main

//#cgo LDFLAGS: -L . -lc_test -lstdc++

//#cgo CFLAGS: -I ./

//#include "ctest.h"

import "C"

import "fmt"

func main(){

fmt.Println("vim-go")

C.test()

}

7 go build test.go