const char* concatenation

Question

I need to concatenate two const chars like these:

const char *one = \"Hello \";
const char *two = \"World\";

How might I go about doing tha

Answer 1

The C way:

char buf[100];
strcpy(buf, one);
strcat(buf, two);

The C++ way:

std::string buf(one);
buf.append(two);

The compile-time way:

#define one "hello "
#define two "world"
#define concat(first, second) first second

const char* buf = concat(one, two);