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c++ Programming Glossary: isn'tWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array random hard to predict So what can be done If the compiler isn't able to optimize the branch into a conditional move you can..
Why isn't sizeof for a struct equal to the sum of sizeof of each member? http://stackoverflow.com/questions/119123/why-isnt-sizeof-for-a-struct-equal-to-the-sum-of-sizeof-of-each-member isn't sizeof for a struct equal to the sum of sizeof of each member..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets reason that an empty set of round brackets parentheses isn't valid for calling the default constructor in C MyObject object.. type automatically everytime. Is there a good reason this isn't allowed c constructor c faq most vexing parse share improve..
Variable length arrays in C++? http://stackoverflow.com/questions/1887097/variable-length-arrays-in-c on the stack which usually has only little space available isn't good. The argument is if you know the size beforehand you can.. dynamic memory and making it use ones own stack allocator isn't exactly easy alignment is an issue too . It also doesn't solve..
Is there a performance difference between i++ and ++i in C++? http://stackoverflow.com/questions/24901/is-there-a-performance-difference-between-i-and-i-in-c away by the compiler this return tmp Since the compiler isn't generating code but just calling an operator function there..
How do you declare an interface in C++? http://stackoverflow.com/questions/318064/how-do-you-declare-an-interface-in-c a function as both virtual and inline but trust me it isn't. class IDemo public virtual ~IDemo virtual void OverrideMe 0..
When should static_cast, dynamic_cast and reinterpret_cast be used? http://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-and-reinterpret-cast-be-used ones . In many cases explicitly stating static_cast isn't necessary but it's important to note that the T something syntax.. behavior to static_cast down a hierarchy to a type that isn't actually the type of the object. const_cast can be used to remove..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c things to or using str return str Of course this solution isn't perfect either. The reason is that we've created str but we.. edit as some of the comments have pointed out this example isn't perfect for at least two reasons. Firstly due to the implementation..
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special compiler will issue an error else this is the case when n isn't specified at all like int a 1 2 3 the size of the array n is.. POD struct or a POD union. Wow this one's tougher to parse isn't it Let's leave unions out on the same grounds as above and rephrase..
Why do I get “unresolved external symbol” errors when using templates? http://stackoverflow.com/questions/456713/why-do-i-get-unresolved-external-symbol-errors-when-using-templates template type that is being used in the program source isn't used there so it still won't generate the code required for.. source with the export keyword. Unfortunately this isn't supported by a lot of compilers. Both 1 and 2 basically address..
Why can templates only be implemented in the header file? http://stackoverflow.com/questions/495021/why-can-templates-only-be-implemented-in-the-header-file be able to use Foo with int or float If my explanation isn't clear enough you can have a look at the C FaqLite on this subject..
How to convert a number to string and vice versa in C++ http://stackoverflow.com/questions/5290089/how-to-convert-a-number-to-string-and-vice-versa-in-c boost and its documentation go here . Although boost isn't in C standard many libraries of boost get standardized eventually..
Is short-circuiting boolean operators mandated in C/C++? And evaluation order? http://stackoverflow.com/questions/628526/is-short-circuiting-boolean-operators-mandated-in-c-c-and-evaluation-order reading can't remember where that evaluation order isn't strictly defined so your code shouldn't depend or assume functions..
Braces around string literal in char array declaration valid? (e.g. char s[] = {“Hello World”}) http://stackoverflow.com/questions/10147264/braces-around-string-literal-in-char-array-declaration-valid-e-g-char-s and seems to be treated the same as char s Hello World . Isn't the first Hello World an array containing one element that is..
Public virtual function derived private in C++ http://stackoverflow.com/questions/1061726/public-virtual-function-derived-private-in-c for me the output was B constructor called B func called Isn't this violating the private access set for that function. Is..
What are inline namespaces for? http://stackoverflow.com/questions/11016220/what-are-inline-namespaces-for not all declarations which may live in different files. Isn't this begging for trouble c namespaces c 11 inline namespaces..
Create std::list of value instead of std::list of pointers in recursive function http://stackoverflow.com/questions/11335738/create-stdlist-of-value-instead-of-stdlist-of-pointers-in-recursive-function c pointers recursion c 11 share improve this question Isn't it just a matter of fixing the address of the objects before..
Questions about Hinnant's stack allocator http://stackoverflow.com/questions/11648202/questions-about-hinnants-stack-allocator and max_size have a throw exception specification Isn't this discouraged see e.g. More Effective C Item 14. Is it really.. and max_size have a throw exception specification Isn't this discouraged see e.g. More Effective C Item 14. Is it really..
“Manual” signature overload resolution http://stackoverflow.com/questions/14972954/manual-signature-overload-resolution funcs3 print print void test3 int main test1 test2 test3 Isn't done but is usable. Thanks all c templates c 11 overload resolution..
Isn't the const modifier here unnecessary? [duplicate] http://stackoverflow.com/questions/16834937/isnt-the-const-modifier-here-unnecessary the const modifier here unnecessary duplicate This question..
Does “std::size_t” make sense in C++? http://stackoverflow.com/questions/237370/does-stdsize-t-make-sense-in-c like bad practice to me perhaps carried over from C . Isn't it true that size_t is built into C and therefore in the global..
Should every class have a virtual destructor? http://stackoverflow.com/questions/353817/should-every-class-have-a-virtual-destructor from and what limitations apply if you try it anyway. Isn't that good enough Or do you need the compiler to throw a hard..
What is the philosophy of managing memory in C++? [closed] http://stackoverflow.com/questions/3681455/what-is-the-philosophy-of-managing-memory-in-c a program does not release a memory object before it exits Isn't a good programming language design supposed to maintain a foo..
C++ - struct vs. class [duplicate] http://stackoverflow.com/questions/4791883/c-struct-vs-class use class for all other classes . My questions here are Isn't there another difference between classes and structs in that..
How to obtain a pointer out of a C++ vtable? http://stackoverflow.com/questions/5099967/how-to-obtain-a-pointer-out-of-a-c-vtable Why do you think DerivedFoo DoSomething is different Isn't this exactly what you're asking for The way I think about it..
Isn't the template argument (the signature) of std::function part of its type? http://stackoverflow.com/questions/5931214/isnt-the-template-argument-the-signature-of-stdfunction-part-of-its-type the template argument the signature of std function part of..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope no runtime exceptions The output was 5 8 How can it be Isn't the memory of a local variable inaccessible outside its function.. local variables dangling share How can it be Isn't the memory of a local variable inaccessible outside its function..
http://stackoverflow.com/questions/720744/static-class-and-singleton class and singleton Isn't a class with all static members methods a kind of singleton..
Why doesn't Java offer operator overloading? [closed] http://stackoverflow.com/questions/77718/why-doesnt-java-offer-operator-overloading question is why didn't Java include operator overloading Isn't Complex a b c a b c much simpler than Complex a b c a b.add..
How to detect the Sun from the space sky in OpenCv? http://stackoverflow.com/questions/8218997/how-to-detect-the-sun-from-the-space-sky-in-opencv cvMorphologyEx gray dst NULL CV_SHAPE_RECT CV_MOP_OPEN 2 Isn't it too heavy processing for such a simple task And how to find..
Isn't C++'s inline totally optional? http://stackoverflow.com/questions/908830/isnt-cs-inline-totally-optional C 's inline totally optional I have a class that had an inline..
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