addwstr, addnwstr, waddwstr, waddnwstr, mvaddwstr, mvaddnwstr,
   mvwaddwstr, mvwaddnwstr - add a string of wide characters to a curses
   window and advance cursor


   #include <curses.h>

   int addwstr(const wchar_t *wstr);
   int addnwstr(const wchar_t *wstr, int n);
   int waddwstr(WINDOW *win, const wchar_t *wstr);
   int waddnwstr(WINDOW *win, const wchar_t *wstr, int n);
   int mvaddwstr(int y, int x, const wchar_t *wstr);
   int mvaddnwstr(int y, int x, const wchar_t *wstr, int n);
   int mvwaddwstr(WINDOW *win, int y, int x, const wchar_t *wstr);
   int mvwaddnwstr(WINDOW *win, int y, int x, const wchar_t *wstr, int n);


   These  functions  write the characters of the (null-terminated) wchar_t
   character  string  wstr  on  the  given  window.   It  is  similar   to
   constructing  a  cchar_t  for  each wchar_t in the string, then calling
   wadd_wch for the resulting cchar_t.

   The mv functions perform  cursor  movement  once,  before  writing  any
   characters.   Thereafter,  the  cursor  is advanced as a side-effect of
   writing to the window.

   The four functions with n as the last argument write at most n  wchar_t
   characters,  or  until a terminating null is reached.  If n is -1, then
   the entire string will be added.


   All functions return the integer ERR upon failure and OK on success.

   X/Open does not  define  any  error  conditions.   This  implementation
   returns an error

   ·   if the window pointer is null or

   ·   if the string pointer is null or

   ·   if the corresponding calls to wadd_wch return an error.

   Functions  with  a  "mv"  prefix  first perform a cursor movement using
   wmove, and return an error if the position is outside the window, or if
   the window pointer is null.


   All of these functions except waddnwstr may be macros.


   These functions are described in the XSI Curses standard, Issue 4.


   ncurses(3NCURSES), add_wch(3NCURSES)


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