Wrap up question regarding use of bitfields in structures.

John Love-Jensen eljay@adobe.com
Mon Oct 22 15:11:00 GMT 2007


Hi Akshay,
 
> Could anyone pls explain to me this behavior ?

I think it is best explained as GIGO.

Or as per ISO 14882 4.7.2:

If the destination type is unsigned, the resulting value is the least
unsigned integer congruent to the source integer (modulo 2^n where n is the
number of bits used to represent the unsigned type).

You can see the same kind of behavior by doing:

unsigned char c = 0x123456;

HTH,
--Eljay



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