curs_memleaks(3X)                                          curs_memleaks(3X)

NAME         top

       _nc_freeall, _nc_free_and_exit, _nc_free_tinfo - curses memory-leak

SYNOPSIS         top

       #include <curses.h>

       void _nc_freeall(void);
       void _nc_free_and_exit(int);
       void _nc_free_tinfo(int);

DESCRIPTION         top

       These functions are used to simplify analysis of memory leaks in the
       ncurses library.  They are normally not available; they must be
       configured 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
       applications 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
       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.  Simply 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.

RETURN VALUE         top

       These functions do not return a value.

PORTABILITY         top

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

SEE ALSO         top


COLOPHON         top

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