curs_memleaks 3x

curs_memleaks(3x)                                            curs_memleaks(3x)


       _nc_freeall, _nc_free_and_exit, _nc_free_tinfo - curses memory-leak


       #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);


       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(3x)), 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 ap-
       plications  for  memory leaks.  When using the specially configured de-
       bugging 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:

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

            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.

            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.


       These functions do not return a value.


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