c++ - 加入 2 const char*s c++

Question

如何将两个 const char* 组合成第三个？

我正在尝试使用这段代码来做到这一点:

const char* pName = "Foo"
printf("\nMy name is %s.\n\n\n",pName);
const char* nName;
int num_chars = asprintf(&nName, "%s%s", "Somebody known as ", pName);

但是我得到这个错误:

'asprintf': identifier not found

我通过这段代码包含了 stdio.h:

#include <stdio.h>

Answer 1

很简单，用C++就可以了:

const char* pName = "Foo"
std::string name("Somebody known as ");
name += pName;

const char* nName = name.c_str();