[Boost-users] R: size_type doubts / integer library..

From: Andrea Denzler (andrea_at_[hidden])
Date: 2008-08-19 02:43:21

> -----Messaggio originale-----
> > Sure those systems are few, very few, but they exist. I think
> Solaris/x86
> > can go to nearly 4GByte, some Linux to 3 GByte, and why not talking
> about
> > the old  80286 allowing 64Kbyte allocations on a 16bit addressing
> scheme.
> You are talking about the size of address space available to the user
> program.
> Even if your address space is 3GB, it's improbable that you're going to be
> able to allocate huge chunks due to external fragmentation of the address
> space, esp. when randomization (ASLR) is in effect.

It's not common but also not impossible, actually I do allocate single big
chunks (well over 1 GB). Maybe in 5 years we still work with 32 bit code but
running on computers where 16 GB is common so addressing up to 4GB is not
that impossible. But sure, it's more an exception than a real situation.