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c++ Programming Glossary: surehttp://stackoverflow.com/questions/1008019/c-singleton-design-pattern here. Dont forget to declare these two. You want to make sure they are unaccessable otherwise you may accidently get copies..
what is the difference between const int*, const int * const, int const * http://stackoverflow.com/questions/1143262/what-is-the-difference-between-const-int-const-int-const-int-const const pointer to a const pointer to an int ... And to make sure we are clear on the meaning of const const int foo int const..
What do the following phrases mean in C++: zero-, default- and value-initialization? http://stackoverflow.com/questions/1613341/what-do-the-following-phrases-mean-in-c-zero-default-and-value-initializat buf use placement new on the memset'ed buffer to make sure if we see a zero result it's due to an explicit value initialization..
Best way to detect integer overflow in C/C++ http://stackoverflow.com/questions/199333/best-way-to-detect-integer-overflow-in-c-c number of bits for your target integer of course. I'm not sure of the fastest way to determine the position of the highest..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new string hi ordinary heap allocation You may also want to be sure there can be no allocation failure at a certain part of critical..
What are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier surprised me a lot. I think that is a POSIX standard not sure yet looking for clarification and official chapter and verse...
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 preferred when explicit casting is needed unless you are sure static_cast will succeed or reinterpret_cast will fail. Even..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux reaction is disbelief. That is natural but you can be sure if it finds a problem it is real and vice versa. ADDED Let me..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c Do stuff with file file.close In other words we must make sure that we close the file once we've finished with it. This has.. in a very small program but in general we want to make sure we delete it. We could just say that the caller must delete..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points Why should I stop using them If you've read this be sure to visit the follow up question Undefined Behavior and Sequence..
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 other way around if a class is not an aggregate then it is sure not a POD Classes just like structs can be PODs even though..
http://stackoverflow.com/questions/4421706/operator-overloading operators to be present too so if you define operator be sure to follow the third fundamental rule of operator overloading.. int argument. If you overload increment or decrement be sure to always implement both prefix and postfix versions. Here is..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers to deploy custom delimiters here is one way using type erasure. We assume that you have already constructed a delimiter class.. check for value_type const_iterator begin end but I'm not sure I'd recommend that since it might match things that match those..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong int data while inStream data when we land here we can be sure that the read was successful. if it wasn't the returned stream..
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 this answer is getting a lot of attention. I'm not sure why I considered it to be just a fun little analogy but whatever... be expensive. An implementation of C is not required to ensure that when the stack logically shrinks the addresses that used..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 show up. Click on the tab Application Settings and make sure the option Empty Project gets selected Add a new file main.cpp..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used singleton The smaller the better. I am a minimalist Make sure it is thread safe Make sure it is never null Make sure it is.. better. I am a minimalist Make sure it is thread safe Make sure it is never null Make sure it is created only once Lazy or system.. sure it is thread safe Make sure it is never null Make sure it is created only once Lazy or system initialization Up to..
What are the differences between struct and class in C++ http://stackoverflow.com/questions/92859/what-are-the-differences-between-struct-and-class-in-c by default members of a class are private by default. I'm sure there are other differences to be found in the obscure corners..
When is a C++ destructor called? http://stackoverflow.com/questions/10081429/when-is-a-c-destructor-called want. 3 Would you ever want to call a destructor manually Sure. One example would be if you want to replace an object with..
Differences between dynamic memory and “ordinary” memory http://stackoverflow.com/questions/1021138/differences-between-dynamic-memory-and-ordinary-memory is in main 's box Rationale for dynamic memory allocation Sure using dynamically allocated memory seems to waste a few bytes..
Why is C++ relatively “harder” to use/bad choice for a beginner? [closed] http://stackoverflow.com/questions/1085134/why-is-c-relatively-harder-to-use-bad-choice-for-a-beginner as of right now is simple I don't know how to do anything. Sure I can write a class that is useful to someone else but I cannot..
What is the reason behind cbegin/cend? http://stackoverflow.com/questions/12001410/what-is-the-reason-behind-cbegin-cend was free to be able to modify the parameter it gets. Sure SomeFunctor could take its parameter by value or by const but..
How to render offscreen on OpenGL? [duplicate] http://stackoverflow.com/questions/12157646/how-to-render-offscreen-on-opengl of that PBO you gained nothing but a lot of code. Sure the glReadPixels might return immediately but now the glMapBuffer..
C++, can I statically initialize a std::map at compile time? http://stackoverflow.com/questions/2172053/c-can-i-statically-initialize-a-stdmap-at-compile-time the constructor is run time and can theoretically fail. Sure if it does it will fail quickly and ought to do so consistently..
Using C++ is a Linked-List implementation without using pointers possible or not? http://stackoverflow.com/questions/3002764/using-c-is-a-linked-list-implementation-without-using-pointers-possible-or-not linked list implementation share improve this question Sure if you don't mind the linked list having a maximum size you..
C++ compile-time constant detection http://stackoverflow.com/questions/3299834/c-compile-time-constant-detection switch to completely different data structures if we want. Sure its not perfect but that's why I posted this question. #include..
Experience using Boost.Log logging library? [closed] http://stackoverflow.com/questions/3510473/experience-using-boost-log-logging-library my game engine and I can only talk good things about it. Sure it's a little early to use since version 2 will be the actual..
cast const Class using dynamic_cast http://stackoverflow.com/questions/3605679/cast-const-class-using-dynamic-cast
API Hook on a COM object function? http://stackoverflow.com/questions/3692836/api-hook-on-a-com-object-function function pointer out of the vtable of any active instance. Sure enough it works like a dream. After the hook is set all navigations..
Will a “variableName;” C++ statement be a no-op at all times? http://stackoverflow.com/questions/4030959/will-a-variablename-c-statement-be-a-no-op-at-all-times to something not convertible to int the solution fails. Sure unlikely but for the sake of going completely overboard we can..
Qt goes LGPL! On Windows, is it good enough to use instead of MFC? [closed] http://stackoverflow.com/questions/443546/qt-goes-lgpl-on-windows-is-it-good-enough-to-use-instead-of-mfc for Windows Does it effectively replace something like MFC Sure I can read the manual and to some degree I have ... but what..
C++ can compilers inline a function pointer? http://stackoverflow.com/questions/4860762/c-can-compilers-inline-a-function-pointer compiler inline share improve this question Sure thing. It knows the value of function is the same as the value..
cannot convert parameter 1 from 'char *' to 'LPCWSTR' http://stackoverflow.com/questions/5480588/cannot-convert-parameter-1-from-char-to-lpcwstr Bitmap Image FILE File NULL File Handle if Filename Make Sure A Filename Was Given return NULL If Not Return NULL File fopen..
What is the performance cost of having a virtual method in a C++ class? http://stackoverflow.com/questions/667634/what-is-the-performance-cost-of-having-a-virtual-method-in-a-c-class assembly... but still only 7 nanoseconds. Edit Andrew Not Sure and others also raise the very good point that a virtual function..
Differences between unique_ptr and shared_ptr [duplicate] http://stackoverflow.com/questions/6876751/differences-between-unique-ptr-and-shared-ptr T myPtr new T Okay shared_ptr T myOtherPtr myPtr Sure Now have two pointers to the resource. Internally shared_ptr..
How do I allocate a std::string on the stack using glibc's string implementation? http://stackoverflow.com/questions/783944/how-do-i-allocate-a-stdstring-on-the-stack-using-glibcs-string-implementation fine so you'll be able to use many of the STL algorithms. Sure it won't be std string in the strictest sense but it will still..
http://stackoverflow.com/questions/836469/cross-platform-programming come to believe that they get in the way for starting off. Sure you will need better tools for real life programs but the overhead..
http://stackoverflow.com/questions/9458741/with-explicitly-deleted-member-functions-in-c11-is-it-still-worthwhile-to-inh allows MyClass to be copied by members and friends. Sure those types and functions are theoretically under your control..
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