¡@
c++ Programming Glossary: everyWhy 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 it can restart down the other path. If you guess right every time the train will never have to stop. If you guess wrong too.. you can restart down the other path. If you guess right every time the execution will never have to stop. If you guess wrong.. then you alternate your guesses. If it goes one way every 3 times you guess the same... In other words you try to identify..
throwing exceptions out of a destructor http://stackoverflow.com/questions/130117/throwing-exceptions-out-of-a-destructor vector destructor explicitly invokes the destructor for every element. This implies that if an element destructor throws the..
Why does an overridden function in the derived class hide other overloads of the base class? http://stackoverflow.com/questions/1628768/why-does-an-overridden-function-in-the-derived-class-hide-other-overloads-of-the The phenomenon is called name hiding . For some reason every time someone asks a question about why name hiding happens people..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new Deallocation in placement new You should not deallocate every object that is using the memory buffer. Instead you should delete..
C++ Standard Library: How to write wrappers for cout, cerr, cin and endl? http://stackoverflow.com/questions/2879555/c-standard-library-how-to-write-wrappers-for-cout-cerr-cin-and-endl std but I am also tired of having to type std in front of every cout cin cerr and endl . So I thought of giving them shorter..
What does 'unsigned temp:3' mean? [duplicate] http://stackoverflow.com/questions/2950029/what-does-unsigned-temp3-mean size always gets rounded up to the next multiple of 8 for every group of unsigned xxx yy construct. That means struct A unsigned..
http://stackoverflow.com/questions/3106110/what-is-move-semantics you include this sentence and meant the exact same object every time We call expressions such as x lvalues . The arguments in..
http://stackoverflow.com/questions/356950/c-functors-and-their-uses Pass a functor to std transform which calls the functor on every element in the input sequence and stores the result to the output..
When to use virtual destructors? http://stackoverflow.com/questions/461203/when-to-use-virtual-destructors the destructor always gets called no matter what and for every object in the chain. When are you meant to make them virtual..
In which scenario do I use a particular STL Container? http://stackoverflow.com/questions/471432/in-which-scenario-do-i-use-a-particular-stl-container the STL and it's containers. Now I do understand each and every one of them have their own specific properties and I'm close..
http://stackoverflow.com/questions/484635/are-global-variables-bad question The problem with global variables is that since every function has access to these it becomes increasingly hard to.. works you pretty much have to take into account every function which modifies the global state. That can be done but..
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 and vice versa in C Since this question gets asked about every week this FAQ might help a lot of users. How to convert an integer..
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 dictating how a compiler must implement references but every C compiler implements references as pointers. That is a declaration..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability can recompile the same source and get a working result on every supported platform but the binary representation may be totally.. On Windows you have to ignore the C and C standards almost everywhere and work exclusively with wchar_t not necessarily internally.. for Unicode support. You really have to be prepared that everything you think you know is possibly wrong. For example you have..
http://stackoverflow.com/questions/6438086/iterator-invalidation-rules underlying container Erasure Sequence containers vector every iterator and reference after the point of erase is invalidated..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used Singleton is not the Pattern but rather the users sorry everybody . Everybody and their father thinks they can implement one.. interviews I have done most people can't . Also because everybody thinks they can implement a correct Singleton they abuse.. new If you want to show off how much you know Because everyone else is doing it See cargo cult programmer in wikipedia In..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection CV_8U gray vector vector Point contours find squares in every color plane of the image for int c 0 c 3 c int ch c 0 mixChannels..
In C++ source, what is the effect of extern “C”? http://stackoverflow.com/questions/1041866/in-c-source-what-is-the-effect-of-extern-c emphasis on extern C extern C is a linkage specification Every compiler is required to provide C linkage a linkage specification..
http://stackoverflow.com/questions/1074474/should-i-use-double-or-float If you want to know the true answer you should read What Every Computer Scientist Should Know About Floating Point Arithmetic..
How do malloc() and free() work? http://stackoverflow.com/questions/1119134/how-do-malloc-and-free-work elements with the standard malloc free is not efficient. Every memory chunk needs additional data and with smaller sizes more..
Pass an array to a wrapped function as pointer+size or range http://stackoverflow.com/questions/11584599/pass-an-array-to-a-wrapped-function-as-pointersize-or-range I've shared the files I used in writing this on my site . Every line of every file in that archive can be reconstructed by following..
Namespace + functions versus static methods on a class http://stackoverflow.com/questions/1434937/namespace-functions-versus-static-methods-on-a-class impossible to declare static methods in multiple headers. Every methods must be declared in the same class. For namespaces functions..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol Definition Rule . Per Paragraph 3.2 3 of the C 11 Standard Every program shall contain exactly one definition of every non inline..
Is there any way to determine the size of a C++ array programmatically? And if not, why? http://stackoverflow.com/questions/197839/is-there-any-way-to-determine-the-size-of-a-c-array-programmatically-and-if-n the size of a C array programmatically And if not why Every function I've seen that takes an array also requires an integer..
Developing C wrapper API for Object-Oriented C++ code http://stackoverflow.com/questions/2045774/developing-c-wrapper-api-for-object-oriented-c-code guru and it seemed non trivial All we ended up doing was Every object is passed about in C an opaque handle. Constructors and..
What platforms have something other than 8-bit char? http://stackoverflow.com/questions/2098149/what-platforms-have-something-other-than-8-bit-char platforms have something other than 8 bit char Every now and then someone on SO points out that char aka 'byte' isn't..
Multiple definition of inline functions when linking static libs http://stackoverflow.com/questions/2217628/multiple-definition-of-inline-functions-when-linking-static-libs non static inline function will be an inline definition if Every function declaration in a TU includes the specifier inline and..
Why does C++ compilation take so long? http://stackoverflow.com/questions/318398/why-does-c-compilation-take-so-long share improve this question Several reasons Header files Every single compilation unit requires hundreds or even thousands.. even thousands of headers to be 1 loaded and 2 compiled. Every one of them typically has to be recompiled for every compilation..
http://stackoverflow.com/questions/331690/c-source-in-unicode quite a bit complicated. Here is my understanding of it. Every implementation has to support characters from the basic source..
Why does C++ not have reflection? http://stackoverflow.com/questions/359237/why-does-c-not-have-reflection in C are nothing like generics in other languages. Every template instantiation creates a new type. std vector int is..
What exactly is One Definition Rule in C++? http://stackoverflow.com/questions/4192170/what-exactly-is-one-definition-rule-in-c function class type enumeration type or template. ... Every program shall contain exactly one definition of every non inline..
http://stackoverflow.com/questions/4340396/does-the-c-standard-mandate-poor-performance-for-iostreams-or-am-i-just-deali or am I just dealing with a poor implementation closed Every time I mention slow performance of C standard library iostreams..
http://stackoverflow.com/questions/500493/c-equivalent-of-instanceof enabled. EDIT I've had some good comments on this answer Every time you need to use a dynamic_cast or instanceof you'd better..
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack http://stackoverflow.com/questions/5625600/what-is-the-meaning-of-token-i-e-double-ellipsis-operator-on-paramet c c 11 variadic templates share improve this question Every instance of that oddity is paired with a case of a regular single..
CUDA how to get grid, block, thread size and parallalize non square matrix calculation http://stackoverflow.com/questions/5643178/cuda-how-to-get-grid-block-thread-size-and-parallalize-non-square-matrix-calcu As you have written it that kernel is completely serial. Every thread launched to execute it is going to performing the same..
function parameter evaluation order http://stackoverflow.com/questions/9566187/function-parameter-evaluation-order and the actual arguments but before the actual call. Every evaluation in the calling function including other function..
|