Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.std.c > #6129

Re: Problem with ranks

Show all headers | View raw

James Kuyper <jameskuyper@alumni.caltech.edu> writes:

> On 5/29/20 9:55 PM, Spiros Bousbouras wrote:
>
>> Assume an implementation with 2 extended integer types as follows :
>
> I suspect that you don't mean the following type names to be interpreted
> literally, but it would have been better for you to choose identifiers
> for those types which are reserved to the implementation, such as
> __int24_t and __uint40_t.
>
>> - INT1 is signed , has 23 value bits and no corresponding unsigned type.
>
> "The standard and extended signed integer types are collectively called
> signed integer types."  (6.2.5p4).
> "For each of the signed integer types, there is a corresponding (but
> different) unsigned integer type ..."  (6.2.5p6).
>
>> - UINT1 is unsigned , has 40 value bits and no corresponding signed type.
>
> That, however, is permitted, since 6.2.5p6 is asymmetrical.

No, it isn't.  Read 6.2.5 p6 more carefully.  Not counting _Bool,
the only types that are unsigned integer types each corresponds
to a signed integer type.  If a type doesn't have a corresponding
signed integer type, it isn't an unsigned integer type (unless
of course it is _Bool).

Back to comp.std.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Problem with ranks Spiros Bousbouras <spibou@gmail.com> - 2020-05-30 01:55 +0000
  Re: Problem with ranks James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-05-30 02:48 -0400
    Re: Problem with ranks Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-05-30 02:18 -0700
      Re: Problem with ranks jameskuyper@alumni.caltech.edu - 2020-05-30 07:11 -0700
        Re: Problem with ranks Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-06-28 05:54 -0700
    Re: Problem with ranks James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-05-30 09:04 -0400
  Re: Problem with ranks Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-05-30 02:11 -0700

csiph-web