Possible Register Variable Faulup

[freddie1]

Is there a storage class specifier or VC compiler switch that prevents a variable from being optimized through locating it in a register?

The reason I'm asking is that I'm having a little ODBC problem where one of my variables isn't receiving a value from an SQL statement during an SQLFetch() operation. I have run into this exact problen using the PowerBASIC programming language many times. That language attempts to automatically use various numbers of registers for auto/local variables for optimazation purposes. However, the address of a variable needs to be passed into SQLBindCol(), and if the compiler uses a register instead of a memory location, nothing shows up in the variable, which is an [out] parameter. In PowerBASIC one must use the #Register None compiler directive which tells the compiler not to use registers for optimizing variables. I've never run into this problem in C++ 'till now. That's why I'm asking.

[freddie1]

Never mind. Been working with the problem some more, and it doesn't look like the issue involves the compiler using one of my output parameters as a register variable. It looks like a compiler error at this point. The exact same program is working perfectly with MinGW 4.4.1-2 32 bit, MinGW 4.8.1-3 32 bit, 4.8.1-3 64 bit, and MS VC++ 9 32 bit. It fails with VC++9 64 bit. Will be working on it again tomorrow. The database is SQL Server 2005.