Programming Tips - What's a quick way to move a doubleword (4 bytes)?

Date: 2010mar8 OS: Windows Language: C/C++ Keywords: copy Q. What's a quick way to move a doubleword (4 bytes)? (eg an IPv4 address) A. You could do this:
memcpy(&to_buffer, &dwFrom, sizeof(DWORD));
But this is faster:
*((DWORD *)&to_buffer) = dwFrom;