ëÏÒÏÌÅ× éÌØÑ wrote:
I don't see why it is important to argue about past design decisions.
It is the way it is.

If you agree that going forward is more important than arguing about the
past, then please provide some examples of where a change in the class
hierarchy would make it work better. Without that, we have no incentive
to change it. Aesthetics alone isn't a good enough reason to break the ABI.

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Hello,

Regarding "/usr/include/mysql++/stream2string.h:47: error: 'const struct
mysqlpp:Tbase<mysqlpp:ateTime>' has no member named 'out_stream'"

This is caused by the lack of out_stream in DTbase and its derived
classes so all you need to do is add out_stream member functions - see
below.

Joel.


In datetime.h:

1) Add to DTbase declaration

virtual std:stream& out_stream(std:stream& os) const = 0;

2) Add to each of DateTime, Date, and Time declarations:

virtual std:stream& out_stream(std:stream& os) const;

3) You might need MYSQLPP_EXPORT in those declarations, see previous
posts for more on that.



In datetime.cpp add these:

std:stream& DateTime:ut_stream(std:stream& os) const
{
return operator <<(os, *this);
}

std:stream& Date:ut_stream(std:stream& os) const
{
return operator <<(os, *this);
}

std:stream& Time:ut_stream(std:stream& os) const
{
return operator <<(os, *this);
}


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Once more thing, somewhat related, in string2stream.h I have commented
out:

str << std::ends;

As far as I am aware std::ends is unnecessary with stringstream objects
and I remember it was causing problems after I added out_stream support
to the Dtbase classes (although I cannot remember the exact nature).

Joel.


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