The following seems perfectly logical to me, but isn\'t valid c++. A union cannot be implicitly cast to one of it\'s member types. Anyone kno开发者_开发百科w a good reason why not?
I have a union as follows: typedef unsigned long GT_U32; typedef unsigned short GT_U16; typedef unsigned char GT_U8;
I\'m sorry this is long, but it is a little complicated to explain. We recently had to hand in for homework the following program (much simplified here):
I have a qu开发者_如何学Pythonestion about something I still don\'t understand about unions. I\'ve read about a lot of their uses and for the most part can see how they can be useful and understand th
I have learned but don\'t really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. Whe
开发者_JAVA百科If no why? Uses of union over structure?? You can use any data type in a union, there\'s no restriction.
Edit2: Can I do polymorphism with Union? It seems to me that I can change the data structure based on my need.
SDL_Event is a union of an unsigned 8 bit type, and many structs whose first element is an unsigned 8 bit type. The reccomended usage is to access the Uint8 element of the union to determine what type
Is there guarantee, that memory for this object will be properly aligned if we create object of this type in stack?
I have a typedef boost::variant<int, float, double, long, bool, std::string, boost::posix_time::ptime> variant which I use to store different types of values in a struct. Only one of the specifi
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