Signed word lengths and indexes

[Walter Bright]

bearophile wrote:
> Walter Bright:
> 
>> Changing the sign of size_t from unsigned to signed when going from 32 to
>> 64 bits will cause a difference in behavior.<
> 
> I have proposed to use a "signed word" on both 32 and 64 bits systems. So
> where's the difference in behaviour?

If we go back in the thread, the argument for the signed size_t argument was for 
64 bit address spaces. With 32 bit address spaces, objects larger than 31 bits 
are needed.