diff options
Diffstat (limited to 'ncurses/tty/hardscroll.c')
| -rw-r--r-- | ncurses/tty/hardscroll.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/ncurses/tty/hardscroll.c b/ncurses/tty/hardscroll.c index 2b1f079e4b9e..767b97097db3 100644 --- a/ncurses/tty/hardscroll.c +++ b/ncurses/tty/hardscroll.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright 2020,2023 Thomas E. Dickey * + * Copyright 2020-2024,2025 Thomas E. Dickey * * Copyright 1998-2015,2016 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * @@ -107,7 +107,7 @@ be moved out of order. THE ALGORITHM The scrolling is done in two passes. The first pass is from top to bottom -scroling hunks UP. The second one is from bottom to top scrolling hunks DOWN. +scrolling hunks UP. The second one is from bottom to top scrolling hunks DOWN. Obviously enough, no lines to be scrolled will be destroyed. (lav) HOW TO TEST THIS: @@ -148,7 +148,7 @@ AUTHOR #include <curses.priv.h> -MODULE_ID("$Id: hardscroll.c,v 1.58 2023/09/09 16:04:08 Nicholas.Marriott Exp $") +MODULE_ID("$Id: hardscroll.c,v 1.61 2025/02/15 15:12:54 tom Exp $") #if defined(SCROLLDEBUG) || defined(HASHDEBUG) @@ -169,7 +169,7 @@ extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; if OLDNUM(n) == _NEWINDEX, then the line n in new, not shifted from somewhere. */ NCURSES_EXPORT_VAR (int *) - _nc_oldnums = 0; /* obsolete: keep for ABI compat */ + _nc_oldnums = NULL; /* obsolete: keep for ABI compat */ # if USE_HASHMAP # define oldnums(sp) (sp)->_oldnum_list @@ -196,7 +196,7 @@ NCURSES_SP_NAME(_nc_scroll_optimize) (NCURSES_SP_DCL0) /* get enough storage */ assert(OLDNUM_SIZE(SP_PARM) >= 0); assert(screen_lines(SP_PARM) > 0); - if ((oldnums(SP_PARM) == 0) + if ((oldnums(SP_PARM) == NULL) || (OLDNUM_SIZE(SP_PARM) < screen_lines(SP_PARM))) { int need_lines = ((OLDNUM_SIZE(SP_PARM) < screen_lines(SP_PARM)) ? screen_lines(SP_PARM) @@ -308,11 +308,11 @@ NCURSES_SP_NAME(_nc_linedump) (NCURSES_SP_DCL0) /* dump the state of the real and virtual oldnum fields */ { if (USE_TRACEF(TRACE_UPDATE | TRACE_MOVE)) { - char *buf = 0; + char *buf = NULL; size_t want = ((size_t) screen_lines(SP_PARM) + 1) * 4; (void) SP_PARM; - if ((buf = typeMalloc(char, want)) != 0) { + if ((buf = typeMalloc(char, want)) != NULL) { int n; *buf = '\0'; @@ -371,7 +371,7 @@ main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED) do { oldnums[n++] = atoi(st); } while - ((st = strtok((char *) NULL, " ")) != 0); + ((st = strtok((char *) NULL, " ")) != NULL); /* display it */ (void) fputs("Initial input:\n", stderr); |