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c++ Programming Glossary: moreWhy is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice std in our programs and that std cout and std cin are more proper. However they would always be vague as to why this is..
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
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom this is non throwing because of the data types being used more attention to detail with regards to exceptions must be given.. to detail with regards to exceptions must be given in a more general case however std copy other.mArray other.mArray mSize.. it is only two lines the allocation and the copy but with more complex resources this code bloat can be quite a hassle. We..
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 work better on bigger programs because they tend to have more problems to find. P.S. This can also be done on multi thread.. time as there is in Java. P.P.S As a rough generality the more layers of abstraction you have in your software the more likely.. more layers of abstraction you have in your software the more likely you are to find that that is the cause of performance..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three copy assignment operator . Its job is generally a little more complicated because the target object is already in some valid.. care of self assignment without an explicit check. An even more robust solution to this problem is the copy and swap idiom but..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points two sequence points a variable must not be modified more than once. In an expression statement the next sequence point.. expressions invoke Undefined Behaviour. i i i is modified more than once i i same as above i 2 same as above i i 1 same as.. ` i` right most and assignment to `i` `i` gets modified more than once b w two SP But the following expressions are fine..
http://stackoverflow.com/questions/4421706/operator-overloading an extra copy. 2 2 Also note that the postfix variant does more work and is therefore less efficient to use than the prefix.. of its result. Of course returning a reference is usually more efficient than returning a copy but in the case of operator.. the lesson to be taken from this is that a b is in general more efficient than a b and should be preferred if possible. Array..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c box . The same situation arises in classes and is maybe more obvious. A pointer to an object and a pointer to its first data..
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 rummaging through a desk that might not even be there anymore C is not going to stop you. Safer languages than C solve this.. it might be germane to update this a bit with a few more technical thoughts. Compilers are in the business of generating.. stored on the stack How does virtual memory work And many more topics in how the C# memory manager works. Many of these articles..
When can outer braces be omitted in an initializer list? http://stackoverflow.com/questions/11734861/when-can-outer-braces-be-omitted-in-an-initializer-list works without it. It seems I need to dig the spec again . More on braces and extra braces I dig the spec. This section §8.5.1..
C++ superclass constructor calling rules http://stackoverflow.com/questions/120876/c-superclass-constructor-calling-rules the subclass' initialization list. do something with bar More info on the constructor's initialization list here and here..
http://stackoverflow.com/questions/126781/c-union-in-c-sharp in your struct. You can of course only use one of them. More informations about unions in struct tutorial share improve..
throwing exceptions out of a destructor http://stackoverflow.com/questions/130117/throwing-exceptions-out-of-a-destructor subject in his book Effective C Edit Apparently also in More Effective C Item 11 Prevent exceptions from leaving destructors..
C++ Vector of Pointers to Objects http://stackoverflow.com/questions/1361139/c-vector-of-pointers-to-objects though because we have to remember to perform some action. More importantly if an exception were to occur in between the allocation..
How is std::string implemented? http://stackoverflow.com/questions/1466073/how-is-stdstring-implemented of dynamically allocating a buffer Also Herb Sutter's More Exceptional C has an appendix Appendix A Optimizations that..
http://stackoverflow.com/questions/162941/why-use-pointers functionality missing data types or for pure perfomance. More below... When and where should I use pointers Short answere..
When should I write the keyword 'inline' for a function/method? http://stackoverflow.com/questions/1759300/when-should-i-write-the-keyword-inline-for-a-function-method Only when you want the function to be defined in a header. More exactly only when the function's definition can show up in multiple..
Simple example of threading in C++ http://stackoverflow.com/questions/266168/simple-example-of-threading-in-c execution therefore blocks its own execution. t1.join More information about std thread here On GCC compile with std c..
Is it possible to program iPhone in C++ http://stackoverflow.com/questions/270455/is-it-possible-to-program-iphone-in-c would be pretty simple if you decided to give that a try. More info on that topic is at the ADC as well. share improve this..
What techniques can be used to speed up C++ compilation times? http://stackoverflow.com/questions/373142/what-techniques-can-be-used-to-speed-up-c-compilation-times you can reduce linking time as well. Get a Faster Computer More RAM faster hard drives including SSDs more CPUs cores will all..
Why are C character literals ints instead of chars? http://stackoverflow.com/questions/433895/why-are-c-character-literals-ints-instead-of-chars share improve this question discussion on same subject More specifically the integral promotions. In K R C it was virtually..
Why no default move-assignment/move-constructor? http://stackoverflow.com/questions/4819936/why-no-default-move-assignment-move-constructor not in Visual 2010 is there any particular reason for this More importantly is there any way to get around this Update If you..
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 address is the same as the variable it references. More on stack vs heap . This implies that there is a real address..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability function none of which is specified in the C standard. More specifically any Unicode capable program on Windows must actively..
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 when it is very hard to figure out who messed it up. More memory safe languages solve this problem by restricting your..
Why would one replace default new and delete operators? http://stackoverflow.com/questions/7149461/why-would-one-replace-default-new-and-delete-operators Note The answer is based on lessons from Scott Meyers' More Effective C . Note This is meant to be an entry to Stack Overflow's..
How should I write ISO C++ Standard conformant custom new and delete operators? http://stackoverflow.com/questions/7194127/how-should-i-write-iso-c-standard-conformant-custom-new-and-delete-operators Note The answer is based on learnings from Scott Meyers' More Effective C and the ISO C Standard. c delete operator overloading..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle for zeros that use less power and produce less heat. More Results Intel Core i7 920 @ 3.5 GHz Windows 7 Ultimate x64 Visual..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used has links to a lot of questions answers about singletons More info about singletons here So I have read the thread Singletons..
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