I need to have several instances of 开发者_开发问答a union as class variables, so how can I create a union instance in the heap? thank youThe same as creating any other object:
I was reading about union in C from K&R, as far as I understood, a single variable in union can hold any one of the several types and if something is stored as one type and extracted as another th
enum Enums { k1, k2, k3, k4 }; union MYUnion { struct U{ char P; }u; struct U0 { char state; } u0; struct U1 {
The questions I have are NOT homework questions, but I am considering using these concepts in my assignment. The context, if it helps, is like this: I need to keep track of several union instances and
I have a couple questions about how to use C++ sets (std::set) Is there a way to get the union, intersection, o开发者_JAVA百科r difference of two C++ sets? (It\'s pretty easy to write my own functio
Supposing I have the following type from an external library: union foreign_t { struct { enum enum_t an_enum;
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