chickadee » srfi-133 » vector-copy!

vector-copy! to at from #!optional start endprocedure

[R7RS-small] Copies the elements of vector from between start and end to vector to, starting at at. The order in which elements are copied is unspecified, except that if the source and destination overlap, copying takes place as if the source is first copied into a temporary vector and then into the destination. This can be achieved without allocating storage by making sure to copy in the correct direction in such circumstances.