Re: [Boost-users] Serializing a char *

From: Robert Ramey (ramey_at_[hidden])
Date: 2008-08-30 01:12:22

I'm suspecting that there is a confusion about how to seriailzation a 
pointer to
a null terminated string.  It's natural to want to do something like

char *p;
...
p = "jsdkfjads"
...
ar & p;

because the library syntax encourages one to think that way.

But in this case, one would want

save(...
    int i = strlen(p);
    ar << i;
    ar << binary_object(i, p);
}

load(...
    int i;
    ar >> i;
    ar >> binary_object(i,p);
}

That is, I think the question reflects a mis-conception
about the best way to use the library.

Robert Ramey

Matthias Troyer wrote:
> How would you serialize pointers as binary objects?
>
> On 29 Aug 2008, at 17:13, Robert Ramey wrote:
>
>> Are you sure really want to do this?  look into binary object.
>>
>> Robert Ramey
>>
>> Matthias Troyer wrote:
>>> On 28 Aug 2008, at 20:47, Diane wrote:
>>>> tracked_char *tcp = it.chstar;  //****error on this line****//
>>>>  ar & *tcp;
>>>> }
>>>>
>>>> I get this compile error: cannot convert `char*' to `tracked_char*'
>>>> in initialization
>>>
>>> Can you try
>>>
>>> tracked_char* tcp(it.chstar)
>>>
>>> That sometimes works for me if I have such problems
>>>
>>> Matthias
>>
>>
>>
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