utf8.h File Reference

#include <windows.h>

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Functions
char *	wstr_to_utf8 (LPWSTR wstr, int len)
LPWSTR	utf8_to_wstr (const char *str, int len)

Function Documentation

utf8_to_wstr()

LPWSTR utf8_to_wstr	(	const char *	str,
		int	len
	)

{
  LPWSTR res = NULL;
 
  int res_size = MultiByteToWideChar(CP_UTF8, 0, str, len, NULL, 0);
  if (res_size > 0) {
    // Note: MultiByteToWideChar doesn't null-terminate if real (ie. > 0) buffer length is passed
    res = malloc(len != - 1 ? res_size + 1 : res_size);
 
    if (res == NULL) { return NULL; }
 
    if (MultiByteToWideChar(CP_UTF8, 0, str, len, res, res_size) == res_size) {
      if (len != -1) { res[res_size] = L'\0'; }
    } else {
      free(res);
      return NULL;
    }
  }
 
  return res;
}

References free(), L, and malloc().

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wstr_to_utf8()

char * wstr_to_utf8	(	LPWSTR	wstr,
		int	len
	)

{
  char *res = NULL;
 
  int res_size = WideCharToMultiByte(CP_UTF8, 0, wstr, len, NULL, 0, NULL, NULL);
  if (res_size > 0) {
    // Note: WideCharToMultiByte doesn't null-terminate if real (ie. > 0) buffer length is passed
    res = malloc(len != - 1 ? res_size + 1 : res_size);
    if (res == NULL) { return NULL; }
 
    if (WideCharToMultiByte(CP_UTF8, 0, wstr, len, res, res_size, NULL, NULL) == res_size) {
      if (len != -1) { res[res_size] = '\0'; }
    } else {
      free(res);
      return NULL;
    }
  }
 
  return res;
}

References free(), and malloc().

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