waddnstr(3) add a string of characters to a curses window and advance cursor

Other Alias

addstr, addnstr, waddstr, mvaddstr, mvaddnstr, mvwaddstr, mvwaddnstr


#include <curses.h>
int addstr(const char *str);
int addnstr(const char *str, int n);
int waddstr(WINDOW *win, const char *str);
int waddnstr(WINDOW *win, const char *str, int n);
int mvaddstr(int y, int x, const char *str);
int mvaddnstr(int y, int x, const char *str, int n);
int mvwaddstr(WINDOW *win, int y, int x, const char *str);
int mvwaddnstr(WINDOW *win, int y, int x, const char *str, int n);


These functions write the (null-terminated) character string str on the given window. It is similar to calling waddch once for each character in the string.

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 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 waddch 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 waddnstr may be macros.


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