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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | PORTABILITY | SEE ALSO | COLOPHON |
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curs_memleaks(3X) curs_memleaks(3X)
_nc_freeall, _nc_free_and_exit, _nc_free_tinfo - curses memory-leak
checking
#include <curses.h>
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. 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:
_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. Simply 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.
These functions do not return a value.
These functions are not part of X/Open Curses; nor do other
implementations of curses provide a similar feature.
curses(3X).
This page is part of the ncurses (new curses) project. Information
about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have a
bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
project's upstream Git mirror of the CVS repository
⟨git://ncurses.scripts.mit.edu/ncurses.git⟩ on 2018-02-02. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2018-01-30.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
curs_memleaks(3X)
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