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From: Garrett Wollman <wollman@hergotha.csail.mit.edu>
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Subject: Re: mbstowcs(3) may not return -1
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In article <4FE340FF.80406@gmail.com>, demelier.david@gmail.com writes:
>On 21/06/2012 14:55, Sergey Kandaurov wrote:
>> It returns (size_t)(-1).
>> I don't know how is it correct, but this conforms to C spec.

>Mm, if I understand well, since it is cast to size_t, I think the return 
>value will be SIZE_MAX - 1 then, right?

No.  C does not make any such equivalence.  "(size_t)-1" is the one
correct spelling of this value (modulo redundant additional
parentheses), and that's how the standard writes it.

-GAWollman