FAQ
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I'm trying to use mysql++ 2.1.1 with the grid component of wxWidgets
2.6.3and with MySQL
5.0 on Windows XP Service Pack 2 with Visual Studio 2005 standard



I'm working with this code now, an expansion of the wxWidget grid sample



[code]





sql_create_5(city,

1,5,

int,ID,

std::string,Name,

std::string,CountryCode,

std::string,District,

mysqlpp::longlong, Population)





GridFrame::GridFrame()

: wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxWidgets grid class demo"
),

wxDefaultPosition,

wxDefaultSize )

{







mysqlpp::Connection con(mysqlpp::use_exceptions);



con.connect(MY_DATABASE,MY_HOST,MY_USER,MY_PASSWORD);

mysqlpp::Query query = con.query();

query.reset();

query << "SELECT * FROM city";



std::vector <city> mycities;



query.storein(mycities);

[\code]



I have everything compiling fine but I'm triggering a breakpoint in
dbgheap.c on line 1252

[quote]

Debug Assertion Failure



_CrtIsValidHeapPointer(pUserData)

[/quote]



on my program line query.storein(mycities); and I'm lost. The exact same
mysqlpp code compiles fine in a windows console application but for whatever
reason it is not playing well with wxWidgets.

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  • Warren Young at Jun 17, 2006 at 2:13 am

    Dave Byington wrote:
    I have everything compiling fine but I'm triggering a breakpoint in
    dbgheap.c on line 1252

    [quote]

    Debug Assertion Failure
    This is almost always caused by mixing build modes.

    There are three or four build options that must all be the same in the
    libraries you use as in your main program or else VC++'s runtime gets
    very upset. Just off the top of my head: debug vs. release, threaded
    CRT vs. not, and CRT in DLL vs. statically linked. There may be more.
    See README.vc for some hints.

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groupplusplus @
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postedJun 16, '06 at 1:45p
activeJun 17, '06 at 2:13a
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