[Qt-interest] Question about bitfields

Thiago Macieira thiago at kde.org
Sat Jul 17 09:47:22 CEST 2010


On Friday 16. July 2010 10.23.03 Dan White wrote:
> Thanks, but I can see I did not include enough info in my original
> question.
> 
> I need to, for example, manipulate two boolean bits and a 14-bit signed
> integer stored in 2 bytes.
> 
> In plain old vanilla C, you say :
> 
> struct foo
> {
> unsigned flag1:1 ;
> unsigned flag2:1;
> signed   number:14
> } ;

You're saying that you're looking for something more from Qt. From my point of 
view, the above looks perfect already for what you're trying to do.

So what more are you looking for?

Also note that in C++ you can declare other integer types in bitfields, like 
short, long, long long, enums, etc.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
      PGP/GPG: 0x6EF45358; fingerprint:
      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
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