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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] Indexes: why signed instead of unsigned?
- From: Benoit Jacob <jacob.benoit.1@xxxxxxxxx>
- Date: Tue, 11 May 2010 11:07:47 -0400
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I tend to agree that we need ptrdiff_t instead of int. I'd suggest:
typedef std::ptrdiff_t idx;
so we get something short to type.
There remains the question of signed vs. unsigned. In other words,
ptrdiff_t vs. size_t. I'm totally unable to decide either way. Help!
Benoit
2010/5/11 joel falcou <joel.falcou@xxxxxx>:
> Rohit Garg wrote:
>>
>> This will become an issue when people start using bigger datasets than
>> 2GB. At a minimum, we need a eigen_size_t typedef somewhere for easy
>> portability. Using long throughout in 32 bit machines doesn't make
>> sense.
>>
>
> Isn't it what ptrdiff_t supposed to be ? biggest signed int on the platform
> .
>
> --
> ___________________________________________
> Joel Falcou - Assistant Professor
> PARALL Team - LRI - Universite Paris Sud XI
> Tel : (+33)1 69 15 66 35
>
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