patch 8.1.0565: asan complains about reading before allocated block commit https://github.com/vim/vim/commit/10600db772a6b50093b8027509d7089c209d1e26 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Dec 5 19:46:07 2018 +0100 patch 8.1.0565: asan complains about reading before allocated block Problem: Asan complains about reading before allocated block. Solution: Workaround: Avoid offset from becoming negative.

/* 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 : */