Re: [Boost-users] How to copy binary file to dynamic bitset?

From: Jeremy Graham Siek (jsiek_at_[hidden])
Date: 2005-07-05 13:27:55

Hi Fujinobu,

Hmm, that sounds like a bug. Perhaps Gennaro can look into it?

Cheers,
Jeremy

On Jul 5, 2005, at 3:45 PM, Fujinobu Takahashi wrote:
>
> //	cout << "bit26 ";
> 	cout << bit26 << endl<<endl;
> 	
> //	cout << "bit34 ";
> 	cout << bit34 << endl<<endl;
>
> --------------------------------------
> Using this code my integration works very well and fast but
> cout << bit26 or
> cout << bit32
> do not work, they are empty!
>
> If possible, would you please show me any concrete hint or a very
> introductory sample of the copy of binary file?
> Using them I can challenge again to explore a mystery of dynamic 
> bitset.
>
> Very thanks,
>
> Fuji
>
> On Thu, 30 Jun 2005 13:46:00 -0500
> Jeremy Siek <jsiek_at_[hidden]> wrote:
>
>> Hi Fuji,
>>
>> The dynamic_bitset construtor that takes a input iterator over blocks
>> was meant
>> for this kind of construction. It would be up to you to obtain/create
>> the iterator.
>>
>> template <typename BlockInputIterator>
>> explicit
>> dynamic_bitset(BlockInputIterator first, BlockInputIterator last,
>>                 const Allocator& alloc = Allocator());
>> Effects: Constructs a bitset based on a range of blocks. Let *first be
>> block number 0, *++first block number 1, etc. Block number b is used 
>> to
>> initialize the bits of the dynamic_bitset in the position range
>> [b*bits_per_block, (b+1)*bits_per_block). For each block number b with
>> value bval, the bit (bval >> i) & 1 corresponds to the bit at position
>> (b * bits_per_block + i) in the bitset (where i goes through the range
>> [0, bits_per_block)).
>> Requires: The type BlockInputIterator must be a model of Input 
>> Iterator
>> and its value_type must be the same type as Block.
>> Throws: An allocation error if memory is exhausted (std::bad_alloc if
>> Allocator=std::allocator).
>>
>>
>>
>> On Jun 30, 2005, at 10:16 AM, Fujinobu Takahashi wrote:
>>
>>> Hello,
>>>
>>> I would like to try one-bit correlation between two one-bit sampling
>>> VLBI data files using powerful dynamic bitset library.
>>> (VLBI:Very Long Baseline Interferometer)
>>>
>>> A binary file japan.dat includes one-bit sampling data of a quasar
>>> received at a Japanese antenna and another binary file usa.dat
>>> includes one-bit sampling data of a same quasar received
>>> simultaneously at a US antenna. The bitset block size should be more
>>> than 10Mbits
>>>
>>> What kind of constructor codes should I write to copy the
>>> bit-pattern of each data file to each very long dynamic bitset?  I
>>> am sorry but I could not find any good answer from Google search.
>>>
>>> I am looking forward to helpful answer in this mail-list.
>>>
>>> Very Thanks
>>>
>>> fuji
>>>
>>>
>>> _______________________________________________
>>> Boost-users mailing list
>>> Boost-users_at_[hidden]
>>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>>
>> _______________________________________________
>> Jeremy Siek <jsiek_at_[hidden]>
>> http://www.osl.iu.edu/~jsiek
>> Ph.D. Student, Indiana University Bloomington
>> C++ Booster (http://www.boost.org)
>> _______________________________________________
>>
>> _______________________________________________
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>> Boost-users_at_[hidden]
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>
>
> _______________________________________________
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_______________________________________________
Jeremy Siek <jsiek_at_[hidden]>
http://www.osl.iu.edu/~jsiek
Ph.D. Candidate, Indiana University Bloomington
C++ Booster (http://www.boost.org)
_______________________________________________