#include <string>

#define STR1 "Hello"
//#define STR2 "World"
#define STR2 "12345678123456781234567812345678"
//#define STR2 "Worlda"

#define METHOD 3

std::string get_value(const bool b)
{
#if METHOD == 1
    std::string ret;
    if (b) {
        ret = STR1;
    } else {
        ret = STR2;
    }
    return ret;
#elif METHOD == 2
    if (b) {
        return STR1;
    } else {
        return STR2;
    }
#elif METHOD == 3
    return b ? STR1 : STR2;
#elif METHOD == 4
    return b ? STR1 : "World";
#endif
}