# curs_memleaks 3x

    curs_memleaks(3x)                                            curs_memleaks(3x)

## NAME

           _nc_freeall, _nc_free_and_exit, _nc_free_tinfo - curses memory-leak
           checking

## SYNOPSIS

           #include <curses.h>

           void exit_curses(int);
           void exit_terminfo(int);

           /* deprecated */
           void _nc_freeall(void);
           void _nc_free_and_exit(int);
           void _nc_free_tinfo(int);

## DESCRIPTION

           These functions are used to simplify analysis of memory  leaks  in  the
           ncurses library.

           Any implementation of curses must not free the memory associated with a
           screen, since (even after calling endwin), it must be available for use
           in  the next call to refresh(3x).  There are also chunks of memory held
           for performance reasons.  That makes it hard to analyze curses applica-
           tions  for memory leaks.  When using the specially configured debugging
           version of the ncurses library, applications can call  functions  which
           free  those  chunks  of  memory, simplifying the process of memory-leak
           checking.

           Some of the functions are named with a "_nc_" prefix because  they  are
           not intended for use in the non-debugging library:

           _nc_freeall
                This frees (almost) all of the memory allocated by ncurses.

           _nc_free_and_exit
                This frees the memory allocated by ncurses (like _nc_freeall), and
                exits the program.  It is preferred over _nc_freeall since some of
                that memory may be required to keep the application running.  Sim-
                ply exiting (with the given exit-code) is safer.

           _nc_free_tinfo
                Use this function if only the low-level  terminfo  functions  (and
                corresponding library) are used.  Like _nc_free_and_exit, it exits
                the program after freeing memory.

           The functions prefixed "_nc" are normally not available; they  must  be
           configured into the library at build time using the --disable-leaks op-
           tion.  That compiles-in code that frees memory that normally would  not
           be freed.

           The  exit_curses and exit_terminfo functions call _nc_free_and_exit and
           _nc_free_tinfo if the library  is  configured  to  support  memory-leak
           checking.   If  the  library  is  not configured to support memory-leak
           checking, they simply call exit.

## RETURN VALUE

           These functions do not return a value.

## PORTABILITY

           These functions are not part of X/Open Curses; nor do other implementa-
           tions of curses provide a similar feature.

## SEE ALSO

           curses(3x).

                                                                 curs_memleaks(3x)