1 files changed, 25 insertions, 0 deletions
diff --git a/exp_memmove.c b/exp_memmove.c
new file mode 100644
index 0000000..324bc2d
--- /dev/null
+++ b/exp_memmove.c
@@ -0,0 +1,25 @@
+/* memmove - some systems lack this */
+
+#include "expect_cf.h"
+#include "tcl.h"
+
+/* like memcpy but can handle overlap */
+#ifndef HAVE_MEMMOVE
+char *
+memmove(dest,src,n)
+VOID *dest;
+CONST VOID *src;
+int n;
+{
+	char *d;
+	CONST char *s;
+
+	d = dest;
+	s = src;
+	if (s<d && (d < s+n)) {
+		for (d+=n, s+=n; 0<n; --n)
+			*--d = *--s;
+	} else for (;0<n;--n) *d++ = *s++;
+	return dest;
+}
+#endif /* HAVE_MEMMOVE */