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-rw-r--r--src/base/mem/move.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/base/mem/move.c b/src/base/mem/move.c
new file mode 100644
index 0000000..5ad4074
--- /dev/null
+++ b/src/base/mem/move.c
@@ -0,0 +1,22 @@
+#include "internal.h"
+
+int
+memĀ·move(void *dst, void *src, uintptr len)
+{
+ char *d, *s;
+ if((long)len < 0)
+ return 1;
+
+ d=dst, s=src;
+ if((s < d) && (s+len > d))
+ goto aliased;
+ while(len-- > 0)
+ *d++ = *s++;
+ return 0;
+
+aliased:
+ d+=len, s+=len;
+ while(len-- > 0)
+ *--d = *--s;
+ return 0;
+}