#include <cstdio>
#include <string>

#define TEST_TARGET	7

#define TEST_STRING	1
#define TEST_CONSTCHAR	2
#define TEST_CHAR	4

#if (TEST_TARGET & TEST_STRING)
void test(std::string str)
{
  printf("std::string ->%s\n", str.c_str());
}
#endif

#if (TEST_TARGET & TEST_CONSTCHAR)
void test(const char* str)
{
  printf("const char* ->%s\n", str);
}
#endif

#if (TEST_TARGET & TEST_CHAR)
void test(char* str)
{
  printf("char* ->%s\n", str);
}
#endif

int main(int argc, char* argv[])
{
#if (TEST_TARGET & TEST_STRING)
  test((std::string)"Hello, world!");
#endif
#if (TEST_TARGET & TEST_CONSTCHAR)
  test((const char*)"Hello, world!");
#endif
#if (TEST_TARGET & TEST_CHAR)
  test((char*)"Hello, world!");
#endif
#if TEST_TARGET
  test("Hello, world!");
#endif
}