Is there any important difference between the memcpy and the memmove functions? When should I use memcpy and when should I use memmove?
When should I use memcpy and when should I use memmove?
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You should use
memmovewhen there's a chance that the source and destination buffers overlap - it is specified to work in that case, whereasmemcpyisn't.In theory
memcpycan be faster, if only because it doesn't check for overlapping memory buffers.