std::bitset redeclaration

Question

I would like to substract an integer from a number that my bitset represents. However, I don't know how to either a) copy a bitset to another bitset, or, b) re-instantiate a bitset:

bitset<7> bits(5);
int newresult=bits.to_ulong();
newresult=newresult-1;
bits=bitset<7> tempbits(newresult); // of course doesn't work

It is important that my end result is in bits bitset. How to do it properly?

Yeah, I was just going to type that up :( :( http://ideone.com/whK8kw — Chad, Oct 31 '12 at 20:48
Wow, that was easy. Can you post it as an answer so I can accept it, ildjarn? — c0dehunter, Oct 31 '12 at 20:49

score 5 · Accepted Answer · answered Oct 31 '12 at 20:49

5

bits = bitset<7>(newresult);

answered Oct 31 '12 at 20:49

Robᵩ

163,533
20
239
308

I don't think this would be a big rep winner anyway, but thanks. :-] – ildjarn Oct 31 '12 at 20:50
Thank you, you've decided fair. – c0dehunter Oct 31 '12 at 20:50
@PrimožKralj - I did this so that you could accept an answer. Don't forget to accept! – Robᵩ Oct 31 '12 at 20:58

std::bitset redeclaration

1 Answers1