c++ Programming Glossary: assignedWhy is it wrong to use std::auto_ptr<> with standard containers? http://stackoverflow.com/questions/111478/why-is-it-wrong-to-use-stdauto-ptr-with-standard-containers assignable. In other words an element must be able to be assigned or copied and the two elements are logically independent. std.. vecX.push_back new X std auto_ptr X pX vecX 0 vecX 0 is assigned NULL. To overcome this limitation you should use the std unique_ptr..
Which I/O library do you use in your C++ code? [closed] http://stackoverflow.com/questions/119098/which-i-o-library-do-you-use-in-your-c-code checked the type at compiler time of the object being assigned too generating an compile time error if required . Thus prevent..
Why is `i = ++i + 1` unspecified behavior? http://stackoverflow.com/questions/1860461/why-is-i-i-1-unspecified-behavior 1 is always the same as i 2 so that's the value that gets assigned to i as part of the assignment operator. The result of i is.. The result of i is always i 1 so that's what gets assigned to i as part of the increment operator. There is no sequence.. is no sequence point to control which value should get assigned first. Since the code is violating the rule that between the..
Why pure virtual function is initialized by 0? http://stackoverflow.com/questions/2156634/why-pure-virtual-function-is-initialized-by-0 virtual function as virtual void fun 0 i.e. it is always assigned to 0. What I understand is that this is to initialize the vtable..
http://stackoverflow.com/questions/2491707/memory-management-in-qt the C class hierarchy inheritance tree. That means that an assigned child does not need to be a direct subclass of it 䏭 parent ...
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom a default constructed instance of our class can safely be assigned and destructed so we know other will be able to do the same..
Optimizing away a “while(1);” in C++0x http://stackoverflow.com/questions/3592557/optimizing-away-a-while1-in-c0x argument the compiler may assume a variable x is only assigned to at most once between sequence points is equivalent to assigning..
What are all the common undefined behaviour that a C++ programmer should know about? [closed] http://stackoverflow.com/questions/367633/what-are-all-the-common-undefined-behaviour-that-a-c-programmer-should-know-ab Using an automatic variable before it has been definitely assigned e.g. int i i cout i Using the value of any object of type other..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new the GZ option uninitialized variables are automatically assigned to this value at byte level . the following magic values are..
Pass by Reference / Value in C++ http://stackoverflow.com/questions/410593/pass-by-reference-value-in-c with a different reference and the local variable is assigned the new reference so to point to the new copy How to understand..
What are the differences between pointer variable and reference variable in C++? http://stackoverflow.com/questions/57483/what-are-the-differences-between-pointer-variable-and-reference-variable-in-c Summary from answers and links below A pointer can be re assigned any number of times while a reference can not be reassigned.. any number of times while a reference can not be reassigned after initialization. A pointer can point to NULL while reference.. c faq share improve this question A pointer can be re assigned int x 5 int y 6 int p p x p y p 10 assert x 5 assert y 10 A..
Why do all these crazy function pointer definitions all work? What is really going on? http://stackoverflow.com/questions/6893285/why-do-all-these-crazy-function-pointer-definitions-all-work-what-is-really-goi converted into a pointer to itself and that pointer is assigned to p1_foo . The unary when applied to a function yields a pointer.. then implicitly converted to a function pointer again and assigned to the variable. You can add as many s as you like the result.. the is applied to foo yielding a pointer to foo which is assigned to the variable. The can only be applied to a function though..
Tag editor component for Delphi/C++Builder http://stackoverflow.com/questions/12597678/tag-editor-component-for-delphi-cbuilder TMenuItem then begin FTags.Delete TMenuItem Sender .Tag if Assigned FTagRemoved then FTagRemoved Self end end procedure TTagEditor.TagChange.. TTagEditor.TagChange Sender TObject begin Invalidate if Assigned FOnChange then FOnChange Self end procedure TTagEditor.WndProc.. Exit end FTags.Add FEdit.Text result true HideEditor if Assigned FTagAdded then FTagAdded Self Invalidate end procedure TTagEditor.EditKeyPress..
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