I may be mistaken, but the basic explanation I\'ve found has been that the union can\'t initialize because it doesn\'t know which member\'s constructor to call. The compiler can not automatically gene
I\'m programming for a µC, i have following data Structure: typedef struct { RF12Head head; typedef union
As the name suggests, a query with multiple or will be faster or a query with multiple query joined with union will be faster?I have joined only two tables to make it simple but there can be more tabl
C++ 0x draft 9.5.6 Anonymous unions declared in a named namespace or in the global namespace shall be decl开发者_如何学Cared static.
This question already has answers here: Closed 12 years ago. Possible Duplicate: Difference between a Structure and a Union in C
I am working on C firmware project. I have a union that is defined as, typedef union { unsigned long value;
#include <stdio.h> struct B { int x,y; }; struct A : public B { // This whines about \"copy assignment operator not allowed in union\"
In C, is it possible to define a union within another union? If no, why is it not possible? Or if yes, where can it be 开发者_JS百科used?Suppose you want to define:
I\'m trying to figure out some C code so that I can port it into python. The code is for reading a proprietary binary data file format. It has been straightforward thus far -- it\'s mainly been struct
class Foo { Foo(int val) { /* Do some initialization */ } Foo() { /* Do nothing */ } }; union Bar { Foo foo;
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