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29 #include <curses.priv.h>
33 MODULE_ID("$Id: widechars.c,v 1.5 2013/03/02 18:55:51 tom Exp $")
35 #if defined(__MINGW32__)
37 * MinGW has wide-character functions, but they do not work correctly.
41 _nc_mbtowc(wchar_t *pwc, const char *s, size_t n)
47 if (s != 0 && n != 0) {
49 * MultiByteToWideChar() can decide to return more than one
50 * wide-character. We want only one. Ignore any trailing null, both
51 * in the initial count and in the conversion.
54 for (try = 1; try <= (int) n; ++try) {
55 count = MultiByteToWideChar(CP_UTF8,
61 TR(TRACE_BITS, ("...try %d:%d", try, count));
66 if (count < 1 || count > 2) {
70 memset(&actual, 0, sizeof(actual));
71 count = MultiByteToWideChar(CP_UTF8,
77 TR(TRACE_BITS, ("\twin32 ->%#x, %#x", actual[0], actual[1]));
92 _nc_mblen(const char *s, size_t n)
98 if (s != 0 && n != 0) {
99 count = _nc_mbtowc(&temp, s, n);
101 int check = WideCharToMultiByte(CP_UTF8,
106 0, /* compute length only */
109 TR(TRACE_BITS, ("\tcheck ->%d\n", check));
110 if (check > 0 && (size_t) check <= n) {
122 _nc_wctomb(char *s, wchar_t wc)
127 check = WideCharToMultiByte(CP_UTF8,
132 0, /* compute length only */
136 result = WideCharToMultiByte(CP_UTF8,
150 #endif /* __MINGW32__ */
152 #endif /* USE_WIDEC_SUPPORT */