How to iterate through unicode characters and print them on the screen with printf in C?

Question

I want to iterate through all (at least the 16 bit) unicode characters and print them on the screen with C.

I know there are related questions on SO but they don\'t

Answer 1

The function to convert a 16-bit Unicode codepoint to a multibyte character sequence is c16rtomb; there is also c32rtomb if you want to handle 32-bit codepoints:

#include 

mbstate_t ps;
char buf[MB_CUR_MAX];
size_t bytes = c16rtomb(buf, i, &ps);
if (bytes != (size_t) -1) {
  printf("%.*s\n", bytes, buf);
}

If c16rtomb is not available you will need to use platform-specific facilities.