1 #include <stdio.h> 2 #include <string.h> 3 #include <wchar.h> 4 5 #include "test_helpers.h" 6 7 int main(void) { 8 mbstate_t state; 9 memset(&state, 0, sizeof state); 10 char in[] = u8"z\u00df\u6c34\U0001F34C"; // or u8"zß水��" 11 size_t in_sz = sizeof in / sizeof *in; 12 13 printf("Processing %zu UTF-8 code units: [ ", in_sz); //Should be 11 regular chars 14 for(size_t n = 0; n < in_sz; ++n) printf("%#x ", (unsigned char)in[n]); 15 puts("]"); 16 17 wchar_t out[in_sz]; 18 char *p_in = in, *end = in + in_sz; 19 wchar_t *p_out = out; 20 int rc; 21 while((rc = mbrtowc(p_out, p_in, end - p_in, &state)) > 0) 22 { 23 p_in += rc; 24 p_out += 1; 25 } 26 27 size_t out_sz = p_out - out + 1; 28 printf("into %zu wchar_t units: [ ", out_sz); //Should be 5 wchars 29 for(size_t x = 0; x < out_sz; ++x) printf("%#x ", out[x]); 30 puts("]"); 31 } 32