C/C++生成静态库动态库及语言交互

• C++静态库与动态库（比较透彻）
• Go中调用C的动态库与静态库

我的静态库示例

• 文件结构

    |- sample
        |- c
            |- libsample
                |- libsample.h
                |- libsample.cpp
                |- libsample.a
        |- g
            |- main.go

• libsample.h

#ifdef __cplusplus
extern "C" {
#endif
int add(int a, int b);
#ifdef __cplusplus
}
#endif

• libsample.cpp

#include "libsample.h"

int add(int a, int b)
{
    return a + b;
}

• 编译生成静态库

g++ -c libsample.cpp -o libsample.o
ar -crv libsample.a libsample.o

• main.go

package main

/*
#cgo CFLAGS: -I../c/libsample
#cgo LDFLAGS: -L../c/libsample -lsample
#include "libsample.h"
*/
import "C"
import "fmt"

func main() {
    fmt.Println("hello world")
    ret := C.add(11, 23)
    fmt.Println(ret)
}

• 运行一下看看效果

$ go run main.go
hello world
34