memcpy is likely to be the fastest way you can copy bytes around in memory. If you need something faster – try figuring out a way of not copying things around, e.g. swap pointers only, not the data itself.
memcpy is likely to be the fastest way you can copy bytes around in memory. If you need something faster – try figuring out a way of not copying things around, e.g. swap pointers only, not the data itself.