ncurses 6.4 - patch 20240414

[ncurses.git] / ncurses / widechar / lib_inwstr.c

diff --git a/ncurses/widechar/lib_inwstr.c b/ncurses/widechar/lib_inwstr.c
index a4f5b8ea2040b45b756550d3530a125075af47cb..b2fdaeac71712de4be58ff6b6cdfb7e640dd16ad 100644 (file)
--- a/ncurses/widechar/lib_inwstr.c
+++ b/ncurses/widechar/lib_inwstr.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2002-2009,2011 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 2002-2016,2017 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            *
@@ -39,31 +40,39 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_inwstr.c,v 1.6 2011/05/28 22:49:49 tom Exp $")
+MODULE_ID("$Id: lib_inwstr.c,v 1.9 2020/02/02 23:34:34 tom Exp $")
 
 NCURSES_EXPORT(int)
 winnwstr(WINDOW *win, wchar_t *wstr, int n)
 {
-    int row, col, inx;
     int count = 0;
-    int last = 0;
     cchar_t *text;
-    wchar_t wch;
 
     T((T_CALLED("winnwstr(%p,%p,%d)"), (void *) win, (void *) wstr, n));
     if (wstr != 0) {
        if (win) {
+           int row, col;
+           int last = 0;
+           bool done = FALSE;
+
            getyx(win, row, col);
 
            text = win->_line[row].text;
-           while (count < n && count != ERR) {
+           while (count < n && !done && count != ERR) {
+
                if (!isWidecExt(text[col])) {
+                   int inx;
+                   wchar_t wch;
+
                    for (inx = 0; (inx < CCHARW_MAX)
                         && ((wch = text[col].chars[inx]) != 0);
                         ++inx) {
                        if (count + 1 > n) {
-                           if ((count = last) == 0) {
+                           done = TRUE;
+                           if (last == 0) {
                                count = ERR;    /* error if we store nothing */
+                           } else {
+                               count = last;   /* only store complete chars */
                            }
                            break;
                        }