# 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 _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.  They are normally not available; they must be config-
           ured into the library at build time using the  --disable-leaks  option.
           That  compiles-in  code  that  frees  memory that normally would not be
           freed.

           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.

           These functions are named with a "_nc_" prefix because they are not in-
           tended 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.

## 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)