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       add_wchstr, add_wchnstr, wadd_wchstr, wadd_wchnstr, mvadd_wchstr, mvadd_wchnstr,
       mvwadd_wchstr, mvwadd_wchnstr - add an array of complex characters (and attributes) to a
       curses window


       #include <curses.h>

       int add_wchstr(const cchar_t *wchstr);
       int add_wchnstr(const cchar_t *wchstr, int n);
       int wadd_wchstr(WINDOW * win, const cchar_t *wchstr);
       int wadd_wchnstr(WINDOW * win, const cchar_t *wchstr, int n);
       int mvadd_wchstr(int y, int x, const cchar_t *wchstr);
       int mvadd_wchnstr(int y, int x, const cchar_t *wchstr, int n);
       int mvwadd_wchstr(WINDOW *win, int y, int x, const cchar_t *wchstr);
       int mvwadd_wchnstr(WINDOW *win, int y, int x, const cchar_t *wchstr, int n);


       These  functions  copy  the  (null-terminated) array of complex characters wchstr into the
       window image structure starting at the current cursor position.  The four functions with n
       as  the  last argument copy at most n elements, but no more than will fit on the line.  If
       n=-1 then the whole array is copied, to the maximum number of characters that will fit  on
       the line.

       The  window  cursor  is  not advanced.  These functions work faster than waddnstr.  On the
       other hand:

       ·   they do not perform checking (such as for the newline, backspace, or  carriage  return

       ·   they do not advance the current cursor position,

       ·   they do not expand other control characters to ^-escapes, and

       ·   they  truncate  the  string  if  it  crosses the right margin, rather than wrapping it
           around to the new line.

       These functions end successfully on encountering a null cchar_t, or when they have  filled
       the  current line.  If a complex character cannot completely fit at the end of the current
       line, the remaining columns are filled with the background character and rendition.


       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.

       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 functions except wadd_wchnstr may be macros.


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


       addwstr(3NCURSES), ncurses(3NCURSES).

       Comparable  functions  in  the  narrow-character  (ncurses)  library  are   described   in