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Hi,

Roberto Ierusalimschy wrote:
> > Using MAX_SIZET/2 is probably safer, but too limiting for 16 bit
> > platforms (some have a 16 bit size_t and a 32 bit ptrdiff_t).
> 
> Maybe ptrdiff_max would be more appropriate.

Umm, no. This leads to size_t overflow on 16 bit platforms.

MAX_ALLOC = min(MAX_SIZET, MAX_PTRDIFFT) - safety_margin

Bye,
     Mike