patch 8.2.4166: undo synced when switching buffer in another window Commit: https://github.com/vim/vim/commit/e615db06046312e74886fa1ef98feb5a9db2a7c3 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 20 21:00:54 2022 +0000 patch 8.2.4166: undo synced when switching buffer in another window Problem: Undo synced when switching buffer in another window. Solution: Do not sync undo when not needed. (closes https://github.com/vim/vim/issues/9575)

/* sha256.c */
void sha256_start(context_sha256_T *ctx);
void sha256_update(context_sha256_T *ctx, char_u *input, UINT32_T length);
void sha256_finish(context_sha256_T *ctx, char_u digest[32]);
char_u *sha256_bytes(char_u *buf, int buf_len, char_u *salt, int salt_len);
char_u *sha256_key(char_u *buf, char_u *salt, int salt_len);
int sha256_self_test(void);
void sha2_seed(char_u *header, int header_len, char_u *salt, int salt_len);
/* vim: set ft=c : */