addchstr, waddchstr, mvaddchstr, mvwaddchstr, addchnstr, waddchnstr, mvaddchnstr, mvwaddchnstr - add a

waddchstr copies the string of curses characters chstr to  the  window  win.   A  null  curses  character
       terminates the string.  waddchnstr does the same, but copies at most n characters, or as many as possible
       if n is -1.  ncurses(3NCURSES) describes the variants of these functions.

       Because  these  functions do not call waddch(3NCURSES) internally, they are faster than waddstr(3NCURSES)
       and waddnstr(3NCURSES).  On the other hand, they

       •   do not treat the backspace, carriage return, or line feed characters specially;

       •   do not represent unprintable characters with unctrl(3NCURSES);

       •   do not update the cursor position to follow the last character written;

       •   truncate the string at the window's right margin, rather than  wrapping  it  to  the  next  line  and
           potentially scrolling.

       SVr3.1 (1987) introduced these functions.

addchstr,  waddchstr,  mvaddchstr,  mvwaddchstr, addchnstr, waddchnstr, mvaddchnstr, mvwaddchnstr - add a
       curses character string to a window

       All of these functions except waddchnstr may be implemented as macros.

       X/Open Curses Issue 4 describes these functions.  It specifies no error conditions for them.

       SVr4 describes a successful return value only as “an integer value other than ERR”.

       These functions return OK on success and ERR on failure.

       In ncurses, they return ERR if

       •   win is NULL or

       •   chstr is NULL.

       Functions prefixed with “mv” first perform cursor movement and fail if the position (y, x) is outside the
       window boundaries.

add_wchstr(3NCURSES)  describes  comparable  functions  of  the  ncurses  library  in  its wide-character
       configuration (ncursesw).

       ncurses(3NCURSES), addch(3NCURSES), addstr(3NCURSES)

ncurses 6.5                                        2025-02-01                                 addchstr(3NCURSES)

#include<curses.h>intaddchstr(constchtype*chstr);intwaddchstr(WINDOW*win,constchtype*chstr);intmvaddchstr(inty,intx,constchtype*chstr);intmvwaddchstr(WINDOW*win,inty,intx,constchtype*chstr);intaddchnstr(constchtype*chstr,intn);intwaddchnstr(WINDOW*win,constchtype*chstr,intn);intmvaddchnstr(inty,intx,constchtype*chstr,intn);intmvwaddchnstr(WINDOW*win,inty,intx,constchtype*chstr,intn);