Re: OT large integer constants
Re: OT large integer constants
- Subject: Re: OT large integer constants
- From: Steve Checkoway <email@hidden>
- Date: Wed, 28 May 2008 02:25:36 -0700
On May 28, 2008, at 1:24 AM, email@hidden wrote:
as i am writing some 64-bit test code i want to check if
a certain result equals a certain number like:
if(mymicro1.microdata()==3048117485400){
b=0;
}
the constant '3048117485400' however is rejected by gcc with the
error mess
integer contstant too large for type, on the net i found that i
should write
That's right, it's too large for a 32 bit long. If you compile with -
arch ppc64 or -arch x86_64 then long will be 64 bits and it should work.
3048117485400ULL
of
3048117485400LL
but this results in the error
use of C99 long long integer constant
[steve$ cat large.c
#include <inttypes.h>
uint64_t foo() { return 3048117485400ULL; }
steve$ gcc -Wall large.c -c
No errors.
what am i to do if i want to keep maximum portability?
The best you can do is follow standards really. Without knowing with
which other compiler you will be compiling this, it's hard to say more.
--
Steve Checkoway
"Anyone who says that the solution is to educate the users
hasn't ever met an actual user." -- Bruce Schneier
Attachment:
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Xcode-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden