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 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.
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.
curses(3x).
curs_memleaks(3x)