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by Sharlin
4576 days ago
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The small string buffer should be the same size as the "heap" struct so as not to waste memory -- remember, they shared the memory as they're members of a union. The heap struct contains three members which, taking into accoult alignment restrictions, usually add up to three times the machine word size (which is basically what sizeof(uintptr_t) is). The "-1" is because C strings are null-terminated, so the maximum length is one less than the size of the buffer. What I don't know is why they don't simply use sizeof(heap) as the buffer size. |
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