![]() Everything he is doing is completely fine. Time for you to read this article.ĭefining the functions in DCommon should not give him redefintion errors, since member function definitions written inside the class definition are implicitly inline. Quote: Quote:I even implented the functions in D3DComon to see if that helped, it did not :(That just tends to lead to redefinition errors. The definition of D3DCommon he showed is all he needs for inheritance in terms of compilation. Refer to the standard, Chapter 9, intro section, subsections 1 and 2. Definition does not necessarily mean executed code. Idatabase base clas undefined code#All of the above are compile-time code that serve to say "this exists, and is defined somewhere."Īctually, no, the second is a class definition, not just a declaration. The following is a declaration:Ĭlass X Ī definition is run time-executable code. So it should not be undefined should it?Huge difference between class declaration and definition. It's the class definition that's needed, which you already have.Įngine that inherits from D3DCommon includes the D3DCommon.h file that holds the definition of class D3DCommon. Fix that and your problem should go away.Įdit: Also, just noting that no, this has nothing at all to do with whether or not you define the functions. Idatabase base clas undefined full#Odds are one of them does so when a full definition of engine is not needed, and that file also happens to be included either directly or indirectly from D3DCommon's file. In particular, do a search in your project for all files which include Engine's file. So, look through your files and make sure that you are only including files when they actually need to be included - if only a declaration is needed, just declare. Now your Engine class definition is encountered, yet D3DCommon's definition hasn't been gotten to yet. Then, when the engine header is included, as it goes to include D3DCommon's file, inclussion guards will prevent it (as they should). If that is the case and if the D3DCommon header gets included first in your translation unit, it will directly or indirectly include the engine header prior to the inclusion of the rest of its own file. This will happen if D3DCommon's header includes the engine header or if one of the files D3DCommon's header includes either directly or indirectly includes the engine header. You probably have circular inclusion, causing the Engine file's body to be included prior to the body of the D3DCommon header since you include D3DCommon's header first in the translation unit. So it should not be undefined should it? I even implented the functions in D3DComon to see if that helped, it did not :( Any recordsets dependent on the CDatabase object are left in an undefined state. Engine that inherits from D3DCommon includes the D3DCommon.h file that holds the definition of class D3DCommon. All pending AddNew or Edit statements of recordsets using the database are canceled, and all pending transactions are rolled back. ![]()
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