patch 8.1.2197: ExitPre autocommand may cause accessing freed memory Commit: https://github.com/vim/vim/commit/34ba06b6e6f94bb46062e6c85dbfdcbb0d255ada Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 20 22:27:10 2019 +0200 patch 8.1.2197: ExitPre autocommand may cause accessing freed memory Problem: ExitPre autocommand may cause accessing freed memory. Solution: Check the window pointer is still valid. (closes https://github.com/vim/vim/issues/5093)

/* if_tcl.c */
void vim_tcl_init(char *arg);
int tcl_enabled(int verbose);
void tcl_end(void);
void ex_tcl(exarg_T *eap);
void ex_tclfile(exarg_T *eap);
void ex_tcldo(exarg_T *eap);
void tcl_buffer_free(buf_T *buf);
void tcl_window_free(win_T *win);
/* vim: set ft=c : */