initial check-in, version 0.5.0

src/string/swab.c

@@ -0,0 +1,13 @@
+#include <unistd.h>
+
+void swab(const void *_src, void *_dest, ssize_t n)
+{
+	const char *src = _src;
+	char *dest = _dest;
+	for (; n>0; n-=2) {
+		dest[0] = src[1];
+		dest[1] = src[0];
+		dest += 2;
+		src += 2;
+	}
+}