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c++ Programming Glossary: explanationWhy do people say there is modulo bias when using a random number generator? http://stackoverflow.com/questions/10984974/why-do-people-say-there-is-modulo-bias-when-using-a-random-number-generator a random number between say 0 and 2. For the sake of explanation let's say RAND_MAX is 10 and I decide to generate a random number..
What is a “translation unit” in C++ http://stackoverflow.com/questions/1106149/what-is-a-translation-unit-in-c term translation unit . Could somebody please give me an explanation of 1 What exactly it is 2 When should I consider using it when..
How do I remove code duplication between similar const and non-const member functions? http://stackoverflow.com/questions/123758/how-do-i-remove-code-duplication-between-similar-const-and-non-const-member-func const c faq share improve this question For a detailed explanation please see the heading Avoid Duplication in const and Non const..
Is gcc4.7 buggy about regular expressions? [duplicate] http://stackoverflow.com/questions/12530406/is-gcc4-7-buggy-about-regular-expressions complaining on SO about libstdc 's regex code here's an explanation of why it's in the state it is That prototype regex code was..
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?) http://stackoverflow.com/questions/161177/does-c-support-finally-blocks-and-whats-this-raii-i-keep-hearing-about the presence of an exception. Here is Bjarne Stroustrup's explanation of the topic. A common use for RAII is locking a mutex A class..
Why should exceptions be used conservatively? http://stackoverflow.com/questions/1744070/why-should-exceptions-be-used-conservatively exception for a reason which to me seems to be the sort of explanation that should never be accepted by a respectable programmer engineer...
What does the caret (?˜^?? mean in C++/CLI? http://stackoverflow.com/questions/202463/what-does-the-caret-mean-in-c-cli came across this code and a few Google searches turn up no explanation of this mysterious to me syntax. Hashtable^ tempHash gcnew Hashtable..
Constants and compiler optimization in C++ http://stackoverflow.com/questions/212237/constants-and-compiler-optimization-in-c to optimize your code. What I've never seen is a good explanation on how the compiler uses this information to optimize the code..
How to use Boost in Visual Studio 2010 http://stackoverflow.com/questions/2629421/how-to-use-boost-in-visual-studio-2010 Boost in Visual Studio 2010 What is a good step by step explanation on how to use Boost in an empty project in Visual Studio 2010...
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom of our class that std swap would entail. An in depth explanation The goal Let's consider a concrete case. We want to manage in..
Optimizing away a “while(1);” in C++0x http://stackoverflow.com/questions/3592557/optimizing-away-a-while1-in-c0x can surprise many people though. Does someone have a good explanation of why this was necessary to allow For reference the most recent..
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 it is real and vice versa. ADDED Let me make a Bayesian explanation of how it works. Suppose there is some instruction I call or..
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 are if possible value initialized see below for the explanation of the term else if m n the compiler will issue an error else..
Why are C character literals ints instead of chars? http://stackoverflow.com/questions/433895/why-are-c-character-literals-ints-instead-of-chars why I can find plenty of mentions of this C quirk but no explanation for why it exists. c c char sizeof share improve this question..
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 You will only 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..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome you should ignore the parts labelled Memory layout in the explanation below. They are intended to give examples of what memory could.. diagrams. Disclaimer For all intents and purposes this explanation and the example memory layouts are vastly simplified. There's..
http://stackoverflow.com/questions/5854581/polymorphism-in-c and seamlessness in using the above mechanisms and explanation is a fiddly distraction from more important concepts. Terminology..
What is “rvalue reference for *this”? http://stackoverflow.com/questions/8610571/what-is-rvalue-reference-for-this and . Note Many standard quotes and overload resolution explanation after here To understand how this works and why @Nicol Bolas'..
std::next_permutation Implementation Explanation http://stackoverflow.com/questions/11483060/stdnext-permutation-implementation-explanation next_permutation Implementation Explanation I was curious how std next_permutation was implemented so I..
Is is_constexpr possible in C++11? http://stackoverflow.com/questions/13299394/is-is-constexpr-possible-in-c11 The above answer detects prvalue constant expressions. Explanation The noexcept e expression gives false iff e contains a potentially..
How many palindromes can be formed by selections of characters from a string? http://stackoverflow.com/questions/2033903/how-many-palindromes-can-be-formed-by-selections-of-characters-from-a-string numFound startPos endPos count return numFound 0 len Explanation The array numFound startPos endPos will hold the number of palindromes..
How do I print the elements of a C++ vector in GDB? http://stackoverflow.com/questions/253099/how-do-i-print-the-elements-of-a-c-vector-in-gdb the first N elements do print myVector._M_impl._M_start @N Explanation This is probably heavily dependent on your compiler version..
How to read a line from a text file in c/c++? [duplicate] http://stackoverflow.com/questions/3081289/how-to-read-a-line-from-a-text-file-in-c-c in c c to read one single line each time from a text file Explanation with Code snippets will help me a lot. c c share improve..
QThread blocking main application http://stackoverflow.com/questions/3213738/qthread-blocking-main-application sure you thread's run method is protected not public . Explanation Calling start is the correct way to start the thread as it provides..
C++/Win32: How to wait for a pending delete to complete? http://stackoverflow.com/questions/3764072/c-win32-how-to-wait-for-a-pending-delete-to-complete pending delete to complete Solved Workable Solution @sbi Explanation for what really happens @Hans Explanation for why OpenFile doesn't.. Solution @sbi Explanation for what really happens @Hans Explanation for why OpenFile doesn't pass through DELETE PENDING @Benjamin..
Direct formula for summing XOR http://stackoverflow.com/questions/3932346/direct-formula-for-summing-xor 45 1 1 N 46 47 47 N 47 0 0 N 48 48 48 N 49 1 1 N 50 51 51 Explanation Low bit is XOR between low bit and next bit. For each bit except..
Post Increment and Pre Increment concept? http://stackoverflow.com/questions/4445706/post-increment-and-pre-increment-concept prefix increment or decrement. Can any one give a better Explanation c conceptual post increment pre increment share improve this..
How many and which are the uses of “const” in C++? http://stackoverflow.com/questions/455518/how-many-and-which-are-the-uses-of-const-in-c called ScopeGuard const guard MakeGuard cleanUpFunction Explanation using code struct ScopeGuard ~ScopeGuard not virtual template.. write return mData char const getData const return mData Explanation You might want to share data when you copy something as long..
C++ Add to linked list in sorted order http://stackoverflow.com/questions/4825030/c-add-to-linked-list-in-sorted-order next temp2 temp2 next temp3 temp temp next temp2 EDIT Explanation The 'temp3' pointer points to where 'temp' would need to go...
Explanation of call ordering in a cout statement, postfix vs prefix http://stackoverflow.com/questions/5204805/explanation-of-call-ordering-in-a-cout-statement-postfix-vs-prefix of call ordering in a cout statement postfix vs prefix I was..
In the C++ Boost libraries, why is there a “.ipp” extension on some header files http://stackoverflow.com/questions/543507/in-the-c-boost-libraries-why-is-there-a-ipp-extension-on-some-header-files special file type c boost share improve this question Explanation from one of the template gurus If you want to split up your..
http://stackoverflow.com/questions/5598703/c-const-usage-explanation Const Usage Explanation const int const Method3 const int const const Can someone explain..
Have a good hash function for a C++ hash table? http://stackoverflow.com/questions/628790/have-a-good-hash-function-for-a-c-hash-table char str return size_t str precision CRC is for slowpokes Explanation This works by casting the contents of the string pointer to..
Integrate type name in static_assert output? http://stackoverflow.com/questions/6415186/integrate-type-name-in-static-assert-output iterator passed does not reference IMyInterface items Explanation If the assertion fails it will print the template arguments..
Position of least significant bit that is set http://stackoverflow.com/questions/757059/position-of-least-significant-bit-that-is-set Using de Bruijn Sequences to Index a 1 in a Computer Word Explanation about why the above code works. Board Representation Bitboards..
CreateProcess and command line arguments http://stackoverflow.com/questions/8649212/createprocess-and-command-line-arguments keeps returning with 'Invalid command line argument' Explanation I'm writing a piece of code that calls external programs using..
Move assignment operator and `if (this != &rhs)` http://stackoverflow.com/questions/9322174/move-assignment-operator-and-if-this-rhs copy other.mArray other.mArray mSize mArray return this Explanation One of the more expensive things you can do on modern hardware..
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