<joshasb...@REMOVETOREPLYfuse.net> wrote:
>All,
>Sorry if this is seen as a double post (I posted this in cppbuilder.language
>as well), but I'm not sure if this is a language issue or an IDE/Project
>issue. Anyway, if anyone has any thoughts, please pass them on. I'm dying
>here.
>Thanks!
>Josh
>> I am trying to create a global class so that two different Borland C++
>> Builder classes can access/update the static variables declared within. I
>> only want one instance of the variable SelectedOptionPrice (see below) to
>> occur yet the second project always accesses the class like it is the
>first
>> time the variable has been updated (read: the variable isn't being treated
>> as a global). I've traced through this and there are disparate addresses
>> being created for the SelectedOptionPrice variable, so I know that I am
>> doing something incorrectly. Strangely, this code works on an SGI
>compiler,
>> so I assume that I am fighting the way Borland manages the memory between
>> projects.
>> If anyone has any ideas (no matter how far-fetched), please, please,
>please
>> pass them on. I am facing a deadline on Monday, and this is really
>> hampering me.
>> Thanks!
>> Josh
>> <<OptionsSplitter.h>> This is where I have declared the class. I have
>done
>> it in two different ways, and both fail in the same way:
>> /*class GlobalOptions
>> {
>> private:
>> static float SelectedOptionPrice;
>> //PRIVATE CONSTRUCTOR
>> GlobalOptions(); //This shouldn't do anything since instantiation
>> can't happen in a static;
>> public:
>> static void setOptionPrice(float NewSelectedOptionPrice)
>> { SelectedOptionPrice += NewSelectedOptionPrice; }
>> static float getOptionPrice()
>> { return SelectedOptionPrice; }
>> };
>> */
>> class GlobalOptions
>> {
>> private:
>> static GlobalOptions foo;
>> static float SelectedOptionPrice;
>> //PRIVATE CONSTRUCTORS
>> GlobalOptions();
>> GlobalOptions(const SHBGlobalOptions&); //Prevent
>> copy-construction
>> public:
>> static GlobalOptions* instance()
>> {return &foo;}
>> static void setOptionPrice(float NewSelectedOptionPrice)
>> {SelectedOptionPrice += NewSelectedOptionPrice; }
>> static float getOptionPrice()
>> {return SelectedOptionPrice; }
>> };
>> float GlobalOptions::SelectedOptionPrice = 99;
>> <<One thing to note is that I get all kinds of unresolved linking errors
>if
>> I put the last line in one of my implementation files and not the other>>
>> ++++++++++++++++++++++++++++++++++++++++++++++
>> <<OptionsSplitter.cpp -- this is in the first project>>
>> .....
>> GlobalOptions::setOptionPrice(CustomerRec.FullValue);
>> float tmpSOP;
>> tmpSOP = GlobalOptions::getOptionPrice();
>> <<Note: tmpSOP is getting updated correctly >>
>> +++++++++++++++++++++++++++++++++++++++++++++++
>> <<DesignOptions.cpp -- This file calls OptionsSplitter.cpp at the function
>> that contains the previous snip>>
>> ....
>> void TDesignOptions::LoadSelectedOptions()
>> {
>> SaveOptionInsertion = false; // don't save insert when loading
>selected
>> SaveOptionDeletion = false; // don't save delete when loading
>selected
>> if (OptionsSplitterWindow)
>OptionsSplitterWindow->SendMessage(WM_LOADCUSTOMERSELECTEDOPTIONS,0,0L);
>> //JTA
>> tempSelectedOptionPrice = GlobalOptions::getOptionPrice();
>> ...
>> <<Note: when I trace through this, a new version of SelectedOptionPrice is
>> created despite the static declaration in the header file, and
>> tempSelectedOptionPrice is set to 99. >>
