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Message: [QUOTE="Mikko Rauhala, post: 4157424"] You know, if you have a very short maximum cap for the length, you could just allocate that and reuse the buffer. (You could also by default reuse the buffer and only reallocate a larger one as it becomes necessary.) That said, the first response was correct in that it's not likely to make much of a difference in this quite simple case. In general though, I would avoid unnecessary repeated allocations and frees in a tight loop. In general, it can indeed. Especially if your processing step here involves allocating space that _isn't_ freed, it can happen in your example too, but probably not to a large extent. (The malloc implementation just needs to be smart enough to reuse the space left by the previous freed buffer, in the common case that it's sufficiently large). [/QUOTE]