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29 /****************************************************************************
30 * Author: Thomas E. Dickey 2002 *
31 ****************************************************************************/
36 ** The routine unget_wch().
40 #include <curses.priv.h>
42 MODULE_ID("$Id: lib_unget_wch.c,v 1.7 2004/12/05 01:21:31 tom Exp $")
46 * glibc's wcrtomb() function is broken - does not return the proper value
47 * when target is null (noted for glibc 2.3.2). This is a workaround.
49 NCURSES_EXPORT(size_t)
50 _nc_wcrtomb(char *target, wchar_t source, mbstate_t * state)
54 const wchar_t *tempp = temp;
57 return wcsrtombs(NULL, &tempp, 0, state);
59 return wcrtomb(target, source, state);
64 unget_wch(const wchar_t wch)
71 T((T_CALLED("unget_wch(%#lx)"), (unsigned long) wch));
74 length = _nc_wcrtomb(0, wch, &state);
76 if (length != (size_t) (-1)
80 if ((string = (char *) malloc(length)) != 0) {
82 wcrtomb(string, wch, &state);
84 for (n = (int) (length - 1); n >= 0; --n) {
85 if (ungetch(string[n]) != OK) {