[GSOC]The relationship between int width, long width, and pointer width(Xiaochen Pan)

Ralf Corsepius ralf.corsepius at rtems.org
Fri Aug 17 06:56:53 UTC 2012


On 08/16/2012 09:26 PM, Xiaochen Pan wrote:
> Hi there,
>
> Is there any fixed relationship between size of int, long, and pointer?

Well, there is only one safe assumption: sizeof(int) <= sizeof(long).

POSIX and ISOC make further assumption (such as sizeof(int) >= 32bit), 
but in practice, on embedded systems these often do not apply.

Ralf







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