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As previously posted by Chris Gagnon, I have found the reason his compilier
complains about "_table" and "name" being multiply defined. Im running into
the same trouble. The compiler I am using is VC++ 7.1

When using the create macro, according to the preprocessor, it expands to
something like this...

////////////////////////////
....
struct stock
{
.....
static const char *names[];
static const char *_table;
......
};

const char *stock::names[] = { "item" , "num" , "weight" , "price" , "date"};
const char *stock::_table = "stock" ;
....
//////////////////////////////

When this is put in a header file, then every where you include that header
its gonna try to redefine "names" and "_table".

At least this is my understanding of what is wrong. So i guess the question
is, can "sql_create_#" be used in a header file and be included every where
you need it?

I had to modify the custom.pl script to not init these members. Instead I am
initializing them in my code manually in a global area. Does this seem like
a logical solution? Just curious.

Mark Merendino

-------------------------------1114516226--

MERE2639 (AT) aol (DOT) com wrote:
I've added an ifdef guard around those definitions so that you can
suppress them if you need to. You will define MYSQLPP_NO_DEFINE_STATICS
before including the header that defines the SSQLS in all but one
location. This will appear in the next version, which should be
appearing soon.

Thanks taking an interest in helping us fix these VC++ problems. None
of the major maintainers use VC++ for MySQL++ development (I use it, but
for other things) so it's good to have someone involved who has a
personal interest in VC++ compatibility. A lot of people just complain
about portability problems and then go away if someone else doesn't
provide a fix for them. Again, thanks.

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Warren Young wrote:

Alas, this isn't going to work. These definitions are within a macro,
which is effectively on a single C++ line; you can't go putting an ifdef
in the middle of a line.

The only ways I can think of to get around this will break the API, and
possibly also the ABI. So, I'm going to have to defer this fix to a
major release. In the meantime, simply #include the header containing
the SSQLS definition in only one place. I realize this restricts how
you can use MySQL++...but realize that all of us who are using SSQLS now
must be doing this already, and it doesn't seem to bother us any!



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