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c++ Programming Glossary: howWhy 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 sorting brings the data into cache but my next thought was how silly that is because the array was just generated. What is.. which direction a branch will go until the last moment. So how would you strategically guess to minimize the number of times.. to identify a pattern and follow it. This is more or less how branch predictors work. Most applications have well behaved..
What is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix undefined reference unresolved external symbol error and how do I fix it What are undefined reference unresolved external.. external symbol errors What are common causes and how to fix them Feel free to edit add your own. c linker error..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom C is a common function possible What is copy elision and how it optimizes copy and swap idiom C dynamically allocating an.. regards to exceptions must be given in a more general case however std copy other.mArray other.mArray mSize mArray destructor.. needs operator to work correctly. A failed solution Here's how a naive implementation might look the hard part dumb_array operator..
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 vice versa. ADDED Let me make a Bayesian explanation of how it works. Suppose there is some instruction I call or otherwise..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c a library written in C you should have a firm grasp on how arrays work. This FAQ is split into five parts arrays on the.. or any other element of an array there is no way to detect how large that array is or where exactly the pointer points to relative.. int pointer_to_the_entire_array int 8 Note how the pointer to the first element only points to a single 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 The C standard is very careful to avoid dictating how a compiler must implement references but every C compiler implements.. reference cannot. If you try hard enough and you know how you can make the address of a reference NULL. Likewise if you.. is a variable that holds a memory address. Regardless of how a reference is implemented a reference has the same memory address..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords process that determines this is called name lookup. This however presents a problem in templates How will you find out what.. that are names is called dependent name . Function names however may have different meaning in different instantiations of.. The typename keyword Let's get back to our initial problem how can we parse t x f The answer is In this case we decide how..
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 compiler generates calls into a heap manager that knows how to dynamically allocate storage when it is needed and reclaim.. stack How does virtual memory work And many more topics in how the C# memory manager works. Many of these articles are also..
http://stackoverflow.com/questions/1008019/c-singleton-design-pattern article about when to use a singleton not often Singleton How should it be used See this two article about initialization..
Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati return B int main A a B b1 a 1 B b2 a 2 output direct copy How does it work and why does it output that result Direct initialization..
How to pass objects to functions in C++? http://stackoverflow.com/questions/2139224/how-to-pass-objects-to-functions-in-c to pass objects to functions in C I am new to C programming..
What is the difference between #include <filename> and #include “filename”? http://stackoverflow.com/questions/21593/what-is-the-difference-between-include-filename-and-include-filename of that directive by the entire contents of the header. How the places are specified or the header identified is implementation..
http://stackoverflow.com/questions/236129/how-to-split-a-string-in-c to split a string in C What's the most elegant way to split..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom operator is arguably the most nuanced and difficult. How should it be done What pitfalls need to be avoided The copy.. duplication and providing a strong exception guarantee . How does it work Conceptually it works by using the copy constructor's.. we're finished this now manages an array without leaks. However it suffers from three problems marked sequentially in the..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three assignment operator When do I need to declare them myself How can I prevent my objects from being copied c copy constructor..
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 material What are Aggregates What are POD s Plain Old Data How are they related How and why are they special What changes for.. What are POD s Plain Old Data How are they related How and why are they special What changes for C 11 c aggregate.. c aggregate c faq pod c 11 share improve this question How to read This article is rather long. If you want to know about..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c do I use arrays in C C inherited arrays from C where they are.. for arrays does not arise quite as often as it does in C. However when you read legacy code or interact with a library written.. leads to the following interesting equivalence x i x i x i However x 0 is generally not equivalent to x . The former is a pointer..
How do I tokenize a string in C++? http://stackoverflow.com/questions/53849/how-do-i-tokenize-a-string-in-c do I tokenize a string in C Java has a convenient split method.. case can easily be built using the std string find method. However take a look at Boost.Tokenizer . It's great. Boost generally..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong is checking for eof explicitly using iostream eof wrong How is it different from using scanf ... ... EOF in C which I often..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords non types. The following should suffice as an example t f How should this be parsed Usually for simple languages for parsing.. and semantically it will declare f as a pointer variable . However if it's a non type it will be parsed as an expression. So.. name lookup. This however presents a problem in templates How will you find out what a name t x refers to if t refers to a..
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 just running with no runtime exceptions The output was 5 8 How can it be Isn't the memory of a local variable inaccessible.. c memory management local variables dangling share How can it be Isn't the memory of a local variable inaccessible.. look in the drawer. Your book is still there. Astonishing How can that be Aren't the contents of a hotel room drawer inaccessible..
C++/CLI wrapper for native C++ to use as reference in C# http://stackoverflow.com/questions/10223186/c-cli-wrapper-for-native-c-to-use-as-reference-in-c-sharp wrapper imported from DLL . What keywords should I use and HOW to re declare my native C objects to become visible in C# c#..
Why does std::fstream set the EOF bit the way it does? http://stackoverflow.com/questions/1039667/why-does-stdfstream-set-the-eof-bit-the-way-it-does against file.fail rather than file.eof and I understand HOW eof works. My question is why does it work that way Are there..
How to call a lib written in C++ from C? http://stackoverflow.com/questions/4014851/how-to-call-a-lib-written-in-c-from-c SO either. I do not even know IF this can work far lesser HOW this has to be done. c c linker static linking share improve..
Levenshtein Distance: Inferring the edit operations from the matrix http://stackoverflow.com/questions/5849139/levenshtein-distance-inferring-the-edit-operations-from-the-matrix this solution I don't have an idea. Please only write me HOW MUST LOOK for this example. c algorithm levenshtein distance..
C++ unique static id and class name with base class http://stackoverflow.com/questions/7691697/c-unique-static-id-and-class-name-with-base-class id return an unique id for each object or derived class HOW static const string name return class name for each derived.. string name return class name for each derived class HOW for example TaskBase for this class My try was template typename..
http://stackoverflow.com/questions/8896/memcached-on-windows-x64 on Windows x64 Does anyone know IF WHEN or HOW I can get Memcached running on a Windows 64bit environment I'm..
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