int
db_env_set_func_free(void (*func_free)(void *ptr));
Description
Replace Berkeley DB calls to the ANSI C X3.159-1989 (ANSI C) standard
free function with func_free, which must conform to
the standard interface.
The db_env_set_func_free interface affects the entire application, not a single
database or database environment.
While the db_env_set_func_free interface may be used to configure Berkeley DB at any time
during the life of the application, it should normally be called before
making any calls to the db_env_create or db_create functions.
The db_env_set_func_free function returns a non-zero error value on failure and 0 on success.