golang cgo字符串转换 - Fri, Aug 11, 2023

golang cgo字符床转换

1. string to char*

ptChar := C.CString("hello world")

2. string to const char*

#include <stdio.h>

void Hello(const char* s) {
    printf("%s\n", s);
}

C.Hello(C.CString("Hello, World\n"))

3. []string to char**

authArray := []*C.char{}
for _, v := range in.AuthArray {
    cs := C.CString(v)
    authArray = append(authArray, cs)
}
defer func() {
	for _, v := range authArray {
		C.free(unsafe.Pointer(v))
	}
}()

ptAuthArray := &authArray[0]