#define _XOPEN_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <wchar.h>
#include <locale.h>

int
main (int argc, char *argv[])
{
	char *cp = "👩🏼‍⚕️🩺";
	wchar_t wch[100];
	int i;
	
	setlocale(LC_ALL, "en_US.UTF-8");

	mbstowcs(wch, cp, 100);
	printf("wcswidth len=%d\n\n", wcswidth(wch, 100));

	while (cp[i])
	{
		int res = mbtowc(wch, cp + i, 100);

		printf("bytes_consumed=%d, ", res);
	
		int len = wcwidth(wch[0]);
		printf("wcwidth len=%d\n", len);
		i += res;
	}

	return 0;
}