On Fri, 25 Feb 2011 20:06:04 -0500, bearophile <bearophileh...@lycos.com>
wrote:
simendsjo:
So.. A long in C is the same as the platform size? And long long doesn't
exist in 64 bit?
In D the size of int/uint is 32 bits and long/ulong is 64 bits.
In C the size of int, unsigned int, long, long long int, unsigned long
long int, etc are not fixed, the change according to the CPU.
sizeof(int) <= sizeof(long) <= sizeof(long long).
It's *recommended* that ints be the size of a standard register. So,
those sizes do not have to follow the CPU architecture, and compilers
could potentially use different sizes even on the same platform.
D (and most languages that came after C) did a much better job on this.
BTW, I think long long is a gnu extension, it's not standard C (I don't
think long long exists in Visual C for instance).
-Steve
