c++ Programming Glossary: alwaysWhy is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice std cout and std cin are more proper. However they would always be vague as to why this is a bad practice. Why is using namespace..
How to pass objects to functions in C++? http://stackoverflow.com/questions/2139224/how-to-pass-objects-to-functions-in-c by value is called pass by copy because passing by value always creates a copy in C 03 There's more to this but these few beginner's..
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 Certain sets of names and function signatures are always reserved to the implementation Each name that contains a double.. library directions subclause and identifiers which are always reserved either for any use or for use as file scope identifiers... and either an uppercase letter or another underscore are always reserved for any use. All identifiers that begin with an underscore..
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 It also can only go through public inheritance it will always fail to travel through protected or private inheritance. This..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three person object. The implicitly defined destructor is always empty. This is also fine in this case since we did not acquire..
http://stackoverflow.com/questions/4421706/operator-overloading as functors must be defined as a member function so it always has the implicit this argument of member functions. Other than.. Throughout the C standard library function objects are always copied. Your own function objects should therefore be cheap.. 䏭 algorithms e.g. std sort and types e.g. std map will always only expect operator to be present. However the users of your..
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 it is therefor taken as granted that unqualified names are always known to refer to types if they do so. A similar gotcha exists.. is a template name if this name is followed by a the is always taken as the beginning of a template argument list and never.. template inUnion U dummy ... The keyword template doesn't always have to appear in the last part of a name. It can appear in..
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 do we use stacks to manage memory Are value types in C# always stored on the stack How does virtual memory work And many more..
Memory management patterns in C++ http://stackoverflow.com/questions/14539624/memory-management-patterns-in-c vector T then copies of T will be stored in your vector . Always supposing that you do not need reference semantics this might..
Template specialization of a single method from a templated class http://stackoverflow.com/questions/1723537/template-specialization-of-a-single-method-from-a-templated-class specialization of a single method from a templated class Always considering that the following header containing my templated..
In what cases do I use malloc vs new? http://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-vs-new you are forced to use C you should never use malloc . Always use new. If you need a big chunk of data just do something like..
How can I avoid including class implementation files? http://stackoverflow.com/questions/2037880/how-can-i-avoid-including-class-implementation-files here's a short list of guidelines but not absolute rules Always name headers consistently in a single project such as .h for.. .hpp for C . Never include a file which is not a header. Always name implementation files which are going to be directly compiled..
Where is `%p` useful with printf? http://stackoverflow.com/questions/2369541/where-is-p-useful-with-printf
How do I write a std::codecvt facet? http://stackoverflow.com/questions/2971386/how-do-i-write-a-stdcodecvt-facet is implemented with state template parameter of codecvt. Always use standard mbstate type there as this is the only way to use..
How do you validate an object's internal state? http://stackoverflow.com/questions/343605/how-do-you-validate-an-objects-internal-state builds only. Break into the debugger in debug builds. Always proceed with the queuing also in a bad state. DebugAssert IsValidState..
Understanding sizeof(char) in 32 bit C compilers http://stackoverflow.com/questions/3451266/understanding-sizeofchar-in-32-bit-c-compilers share improve this question sizeof char is always 1. Always. The 'block size' you're talking about is just the native word..
Potential Problem in “Swapping values of two variables without using a third variable” http://stackoverflow.com/questions/3741440/potential-problem-in-swapping-values-of-two-variables-without-using-a-third-var the values of two variables without using a third one. Always use a third variable. EDIT As @caf noticed b^ a^ b is fine even..
http://stackoverflow.com/questions/409348/iteration-over-vector-in-c as the index variable type. However that is not portable. Always use the size_type typedef of the container While you could get..
Is it OK to use C-style cast for built-in types? http://stackoverflow.com/questions/527999/is-it-ok-to-use-c-style-cast-for-built-in-types in your code and be findable using grep and similar tools. Always use C casts is a simple rule that is much more likely to be..
What is the point of STL Character Traits? http://stackoverflow.com/questions/5319770/what-is-the-point-of-stl-character-traits that I can have CaseInsensitiveString c1 HI c2 hi if c1 c2 Always true cout Strings are equal. endl That is I can have a string..
What's this C++ syntax that puts a brace-surrounded block where an expression is expected? http://stackoverflow.com/questions/6305396/whats-this-c-syntax-that-puts-a-brace-surrounded-block-where-an-expression-is then the construct is of type void and has no value. Always compile your code by selecting a sandard in GCC use one of the..
Optimizations for pow() with const non-integer exponent? http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent std printf Input vg n x0 Approx 5 accuracy from one call. Always an overestimate. __m128 x1 fastpow 24 10 1 1 x0 std printf Direct..
Difference between try-catch syntax for function http://stackoverflow.com/questions/6756931/difference-between-try-catch-syntax-for-function it because it can not suppress the exception. Guideline 3 Always clean up unmanaged resource acquisition in local try block handlers..
http://stackoverflow.com/questions/7596406/stdio-h-not-standard-in-c this question stdio.h is standard but deprecated. Always prefer cstdio in C . n3290 C.3.1 1 For compatibility with the..
C and C++ programming on Ubuntu 11.10 [closed] http://stackoverflow.com/questions/7937602/c-and-c-programming-on-ubuntu-11-10 configure to suit your needs. . Some few tips for a newbie Always compile with Wall Wextra and perhaps even with Werror pedantic.. Wall Wextra and perhaps even with Werror pedantic errors Always correct your source code till you got no warning at all. Trust..
Pimpl idiom vs Pure virtual class interface http://stackoverflow.com/questions/825018/pimpl-idiom-vs-pure-virtual-class-interface a class makes sense. An Entity type Identity is important. Always passed by reference never by value . Often doesn't make sense..
c++ file handling - class objects http://stackoverflow.com/questions/13935827/c-file-handling-class-objects
C: Good Habits re: Transitioning to C++ http://stackoverflow.com/questions/1420685/c-good-habits-re-transitioning-to-c PERHAPS bring you another tool at your disposal and will ALWAYS increase your mastery of the language and will ALWAYS make your.. will ALWAYS increase your mastery of the language and will ALWAYS make your brain work which is a good thing in the dev business...
Downloading and integrating Qt5 with Visual Studio 2012 http://stackoverflow.com/questions/15826893/downloading-and-integrating-qt5-with-visual-studio-2012 Qt's rcc program during Qt's build process. The Qt build ALWAYS fails for any user who has installed the Avast autosandbox feature..
http://stackoverflow.com/questions/15932767/missing-qrc-mimetypes-cpp-while-attempting-to-build-qt-on-windows-7-32-bit-bu Qt's rcc program during Qt's build process. The Qt build ALWAYS fails for any user who has installed the Avast autosandbox feature..
Rendering issue with different computers http://stackoverflow.com/questions/18064988/rendering-issue-with-different-computers breakpoint macro for x86 platforms Breakpoints that should ALWAYS trigger EVEN IN RELEASE BUILDS x86 #ifdef _MSC_VER # define..
Why should I not wrap every block in “try”-“catch”? http://stackoverflow.com/questions/2737328/why-should-i-not-wrap-every-block-in-try-catch with a meaningful try block. I just posted ' You should ALWAYS wrap calls that can throw in try catch blocks. ' to this question..
C# DllImport with C++ boolean function not returning correctly http://stackoverflow.com/questions/4608876/c-sharp-dllimport-with-c-boolean-function-not-returning-correctly bool Exist string name Yet whenever I call my function it ALWAYS returns true even when I commented out my little function and..
Need help in reading JPEG file using libjpeg http://stackoverflow.com/questions/5616216/need-help-in-reading-jpeg-file-using-libjpeg by line while cinfo.output_scanline cinfo.output_height IT ALWAYS crash ON THIS JPEG_READ_SCANLINES FUNCTION CALL BELOW void jpeg_read_scanlines..
http://stackoverflow.com/questions/6866206/volatile-and-createthread CloseHandle hThread1 CloseHandle hThread2 return 0 Can you ALWAYS be sure that thread 1 will stop if done is not volatile c thread..
Unique class type Id that is safe and holds across library boundaries http://stackoverflow.com/questions/922442/unique-class-type-id-that-is-safe-and-holds-across-library-boundaries id static const char s_name return id unique for DERIVED ALWAYS VALID BUT STRING NOT INT BUT VALID AND CROSS PLATFORM CROSS..
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