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-rw-r--r--libc/string/memmove.c53
1 files changed, 48 insertions, 5 deletions
diff --git a/libc/string/memmove.c b/libc/string/memmove.c
index 0626ce1f5..9e50cf5a9 100644
--- a/libc/string/memmove.c
+++ b/libc/string/memmove.c
@@ -1,14 +1,57 @@
/*
+ * Copyright (C) 2002 Manuel Novoa III
* Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-#define L_memmove
-#define Wmemmove __memmove
+#include "_string.h"
-#include "wstring.c"
+#ifdef WANT_WIDE
+# define __Wmemmove __wmemmove
+# define Wmemmove wmemmove
+#else
+# define __Wmemmove __memmove
+# define Wmemmove memmove
+#endif
-strong_alias(__memmove, memmove)
+Wvoid attribute_hidden *__Wmemmove(Wvoid *s1, const Wvoid *s2, size_t n)
+{
+#ifdef __BCC__
+ register Wchar *s = (Wchar *) s1;
+ register const Wchar *p = (const Wchar *) s2;
-#undef L_memmove
+ if (p >= s) {
+ while (n--) {
+ *s++ = *p++;
+ }
+ } else {
+ s += n;
+ p += n;
+ while (n--) {
+ *--s = *--p;
+ }
+ }
+
+ return s1;
+#else
+ register Wchar *s = (Wchar *) s1;
+ register const Wchar *p = (const Wchar *) s2;
+
+ if (p >= s) {
+ while (n) {
+ *s++ = *p++;
+ --n;
+ }
+ } else {
+ while (n) {
+ --n;
+ s[n] = p[n];
+ }
+ }
+
+ return s1;
+#endif
+}
+
+strong_alias(__Wmemmove,Wmemmove)