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46 function reallocates the memory in
49 On successful completion,
53 Otherwise, an error code (see
57 and the referenced memory is unmodified.
61 to initialize an array of INITSIZE integers, then
62 resizes it to NEWSIZE elements:
63 .Bd -literal -offset indent
67 ret = reallocarr(&data, INITSIZE, sizeof(*data));
69 errc(1, ret, "reallocarr failed");
71 ret = reallocarr(&data, NEWSIZE, sizeof(*data));
73 errc(1, ret, "reallocarr failed on resize");
84 function for the same purpose, but the interface makes it difficult
85 to correctly handle zero-sized allocations.