1curs_memleaks(3X)                                            curs_memleaks(3X)
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NAME

6       _nc_freeall, _nc_free_and_exit, _nc_free_tinfo - curses memory-leak
7       checking
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SYNOPSIS

10       #include <curses.h>
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12       void exit_curses(int);
13       void exit_terminfo(int);
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15       /* deprecated */
16       void _nc_freeall(void);
17       void _nc_free_and_exit(int);
18       void _nc_free_tinfo(int);
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DESCRIPTION

21       These functions are used to simplify analysis of memory  leaks  in  the
22       ncurses library.
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24       Any implementation of curses must not free the memory associated with a
25       screen, since (even after calling endwin), it must be available for use
26       in  the next call to refresh(3X).  There are also chunks of memory held
27       for performance reasons.  That makes it hard to analyze curses applica‐
28       tions  for memory leaks.  When using the specially configured debugging
29       version of the ncurses library, applications can call  functions  which
30       free  those  chunks  of  memory, simplifying the process of memory-leak
31       checking.
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33       Some of the functions are named with a “_nc_” prefix because  they  are
34       not intended for use in the non-debugging library:
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36       _nc_freeall
37            This frees (almost) all of the memory allocated by ncurses.
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39       _nc_free_and_exit
40            This frees the memory allocated by ncurses (like _nc_freeall), and
41            exits the program.  It is preferred over _nc_freeall since some of
42            that memory may be required to keep the application running.  Sim‐
43            ply exiting (with the given exit-code) is safer.
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45       _nc_free_tinfo
46            Use this function if only the low-level  terminfo  functions  (and
47            corresponding library) are used.  Like _nc_free_and_exit, it exits
48            the program after freeing memory.
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50       The functions prefixed “_nc” are normally not available; they  must  be
51       configured into the library at build time using the --disable-leaks op‐
52       tion.  That compiles-in code that frees memory that normally would  not
53       be freed.
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55       The  exit_curses and exit_terminfo functions call _nc_free_and_exit and
56       _nc_free_tinfo if the library  is  configured  to  support  memory-leak
57       checking.   If  the  library  is  not configured to support memory-leak
58       checking, they simply call exit.
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RETURN VALUE

61       These functions do not return a value.
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PORTABILITY

64       These functions are not part of X/Open Curses; nor do other implementa‐
65       tions of curses provide a similar feature.
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SEE ALSO

68       curses(3X).
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72                                                             curs_memleaks(3X)
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