ncurses 6.1 - patch 20190323

[ncurses.git] / ncurses / base / lib_addch.c

diff --git a/ncurses/base/lib_addch.c b/ncurses/base/lib_addch.c
index 4b16a476c90aad7cb9b40cc844b6085a3ead1481..ae130ff023746ba81ffce533b140f268878296ee 100644 (file)
--- a/ncurses/base/lib_addch.c
+++ b/ncurses/base/lib_addch.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -36,7 +36,7 @@
 #include <curses.priv.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_addch.c,v 1.129 2014/08/16 20:41:04 tom Exp $")
+MODULE_ID("$Id: lib_addch.c,v 1.131 2017/07/29 20:42:02 tom Exp $")
 
 static const NCURSES_CH_T blankchar = NewChar(BLANK_TEXT);
 
@@ -51,7 +51,7 @@ static const NCURSES_CH_T blankchar = NewChar(BLANK_TEXT);
  */
 
 /* Return bit mask for clearing color pair number if given ch has color */
-#define COLOR_MASK(ch) (~(attr_t)((ch) & A_COLOR ? A_COLOR : 0))
+#define COLOR_MASK(ch) (~(attr_t)(((ch) & A_COLOR) ? A_COLOR : 0))
 
 static NCURSES_INLINE NCURSES_CH_T
 render_char(WINDOW *win, NCURSES_CH_T ch)
@@ -117,14 +117,18 @@ _nc_render(WINDOW *win, NCURSES_CH_T ch)
 #endif
 
 static bool
-newline_forces_scroll(WINDOW *win, NCURSES_SIZE_T * ypos)
+newline_forces_scroll(WINDOW *win, NCURSES_SIZE_T *ypos)
 {
     bool result = FALSE;
 
-    if (*ypos >= win->_regtop && *ypos == win->_regbottom) {
-       *ypos = win->_regbottom;
-       result = TRUE;
-    } else {
+    if (*ypos >= win->_regtop && *ypos <= win->_regbottom) {
+       if (*ypos == win->_regbottom) {
+           *ypos = win->_regbottom;
+           result = TRUE;
+       } else {
+           *ypos = (NCURSES_SIZE_T) (*ypos + 1);
+       }
+    } else if (*ypos < win->_maxy) {
        *ypos = (NCURSES_SIZE_T) (*ypos + 1);
     }
     return result;
@@ -270,11 +274,11 @@ waddch_literal(WINDOW *win, NCURSES_CH_T ch)
 
                /* handle EILSEQ (i.e., when len >= -1) */
                if (len == -1 && is8bits(CharOf(ch))) {
-                   int rc = OK;
                    const char *s = NCURSES_SP_NAME(unctrl)
                      (NCURSES_SP_ARGx (chtype) CharOf(ch));
 
                    if (s[1] != '\0') {
+                       int rc = OK;
                        while (*s != '\0') {
                            rc = waddch(win, UChar(*s) | attr);
                            if (rc != OK)
@@ -427,7 +431,7 @@ waddch_nosync(WINDOW *win, const NCURSES_CH_T ch)
               s[1] == 0
        )
        || (
-              (isprint((int)t) && !iscntrl((int)t))
+              (isprint((int) t) && !iscntrl((int) t))
 #if USE_WIDEC_SUPPORT
               || ((sp == 0 || !sp->_legacy_coding) &&
                   (WINDOW_EXT(win, addch_used)