commit https://github.com/vim/vim/commit/d5824ce1b5491df7d2eb0b66189d366fa67b4585 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 4 20:35:01 2016 +0200 patch 7.4.2326 Problem: Illegal memory access when Visual selection starts in invalid position. (Dominique Pelle) Solution: Correct position when needed.

/* 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 : */