[kabdib]

I fixed a crippling bug on another platform that was taking down whole servers, because someone was depending on a clever realloc to behave well.

This is implementation coupling at its worst. Don't do it.

[xroche]

Yes and no. The real error here would be to realloc without any geometric progression IMHO - ie. reallocating one more byte each time, which would behave well on Linux (except the libc call cost of course) but not on other implementations (such as some Microsoft's MSVCRT versions). Assuming realloc has no catastrophic performance impact is not something too daring.