ncurses 5.0

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

diff --git a/ncurses/base/memmove.c b/ncurses/base/memmove.c
new file mode 100644 (file)
index 0000000..55a4106
--- /dev/null
+++ b/ncurses/base/memmove.c
@@ -0,0 +1,63 @@
+/****************************************************************************
+ * Copyright (c) 1998 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: memmove.c,v 1.2 1999/02/27 19:55:57 tom Exp $")
+
+/****************************************************************************
+ *  Author: Thomas E. Dickey <dickey@clark.net> 1998                        *
+ ****************************************************************************/
+
+#if USE_MY_MEMMOVE
+#define DST ((char *)s1)
+#define SRC ((const char *)s2)
+void * _nc_memmove(void * s1, const void * s2, size_t n)
+{
+       if (n != 0) {
+               if ((DST+n > SRC) && (SRC+n > DST)) {
+                       static  char    *bfr;
+                       static  size_t  length;
+                       register size_t j;
+                       if (length < n) {
+                               length = (n * 3) / 2;
+                               bfr = typeRealloc(char,length,bfr);
+                       }
+                       for (j = 0; j < n; j++)
+                               bfr[j] = SRC[j];
+                       SRC = bfr;
+               }
+               while (n-- != 0)
+                       DST[n] = SRC[n];
+       }
+       return s1;
+}
+#else
+extern void _nc_memmove(void); /* quiet's gcc warning */
+void _nc_memmove(void) { } /* nonempty for strict ANSI compilers */
+#endif /* USE_MY_MEMMOVE */