c++ Programming Glossary: allWhat 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 you'll probably use m_foo . I've also seen myFoo occasionally. C# or possibly just .NET seems to recommend using just an.. to recommend using just an underscore as in _foo . Is this allowed by the C standard c standards c faq share improve this.. Also everything in the std namespace is reserved. You are allowed to add template specializations though. From the 2003 C..
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 ones. However if you're in a hurry and you can manually interrupt your program under the debugger while it's being.. Just halt it several times and each time look at the call stack. If there is some code that is wasting some percentage.. but that is only true if they sample the entire call stack. Call graphs don't give you the same information because..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three and we should understand what copying an object actually means. Let us consider a simple example class person std string.. If you are puzzled by the name name age age part this is called a member initializer list . Special member functions What.. by the copy assignment operator . Its job is generally a little more complicated because the target object is already..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points an FAQ in this form then the posting on meta that started all this would be the place to do that. Answers to that question.. At certain specified points in the execution sequence called sequence points all side effects of previous evaluations shall.. points in the execution sequence called sequence points all side effects of previous evaluations shall be complete and no..
http://stackoverflow.com/questions/4421706/operator-overloading Assignment Operator Input and Output Operators Function call operator Comparison operators Arithmetic Operators Array Subscription.. an FAQ in this form then the posting on meta that started all this would be the place to do that. Answers to that question.. std ios failbit return is When implementing operator manually setting the stream 䏭 state is only necessary when the reading..
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 this line the compiler will create a new class let's call it FooInt which is equivalent to the following struct FooInt.. the implementation separated and explicitly instantiate all the template instances you'll need Foo.h no implementation template..
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 that should only be instantiated for types that could actually be in the union. Trying to cast a Union bool float to std string.. suffice as an example t f How should this be parsed Usually for simple languages for parsing you don't need to know the.. need to know the meaning of a name but can just grammatically analyze the input and then create a parse tree out of it. 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 leave stuff behind they'll shred it for you. If you illegally re enter your room with a stolen key to get it back the hotel.. be just about to be torn down and replaced with a football stadium and you are going to die in an explosion while you are.. when you checked out of the hotel and stole a key to illegally use later you gave up the right to live in a predictable safe..
http://stackoverflow.com/questions/1120140/csv-parser-in-c parser in C All I need is a good CSV file parser for C . At this point it can..
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 units and instantiation units are combined as follows SNIP All external entity references are resolved. Library components.. to entities not defined in the current translation. All such translator output is collected into a program image which..
http://stackoverflow.com/questions/1553382/is-delete-equal-to-delete processor on the last sunny afternoon. Or it might not. All that and an infinite number of other possibilities are put into..
What is this weird colon-member syntax in the constructor? http://stackoverflow.com/questions/1711990/what-is-this-weird-colon-member-syntax-in-the-constructor FAQ entry . The takeaway point from the FAQ entry is that All other things being equal your code will run faster if you use..
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 either for any use or for use as file scope identifiers. All identifiers that begin with an underscore and either an uppercase.. or another underscore are always reserved for any use. All identifiers that begin with an underscore are always reserved.. is included unless explicitly stated otherwise see 7.1.4 . All identifiers with external linkage in any of the following subclauses..
http://stackoverflow.com/questions/3106110/what-is-move-semantics us to detect rvalue arguments via function overloading. All we have to do is write a constructor with an rvalue reference..
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring be either the same or larger for UTF 8 than for UTF 16. All in all UTF 16 will mostly use 2 bytes per characters unless..
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 in this case with the default ctor int Array1 1000 0 All elements are initialized with 0 int Array2 1000 1 Attention.. rest are 0 bool Array3 1000 the braces can be empty too. All elements initialized with false int Array4 1000 no initializer... imply did I mention POD stands for Plain Old Data All POD classes are aggregates or to put it the other way around..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers time. template typename T typename TTraits typename TAllocator class set namespace pretty_print SFINAE type trait to.. for set template typename T typename TTraits typename TAllocator struct delimiters std set T TTraits TAllocator char static.. typename TAllocator struct delimiters std set T TTraits TAllocator char static const delimiters_values char values template..
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 it and the memory block it references as the actual house. All sorts of operations can thus be easily explained. I've added.. the core system routines or you risk crashing the program. Allocate memory Get an entrepreneur to build your house and give.. h1.NextHouse h2 ... h h1 while h nil do begin h.LockAllDoors h.CloseAllWindows h h.NextHouse end Memory layout added..
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 type form. The last form is template name argument list . All these are names and by conventional use in the Standard a name..
WChars, Encodings, Standards and Portability http://stackoverflow.com/questions/6300804/wchars-encodings-standards-and-portability transcode between well defined definite fixed encodings. All encodings handled by iconv are universally understood and agreed..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 this folder there are 2 directories build and opencv . All the setup on VS2010 will refer to the build directory. For practical.. shows up do the following On the Configuration box select All Configurations Open Configuration Properties C C General and..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used singleton implementation share improve this question All of you are wrong. Read the question. Answer Use a Singleton..
error LNK1169: one or more multiply defined symbols found http://stackoverflow.com/questions/12132453/error-lnk1169-one-or-more-multiply-defined-symbols-found Client Class protected string phone_number int counter CALL DURATION TO BE CHARGED double charge public string phone_number.. static const int discount 10 STATIC DISCOUNT OF 10 FOR ALL Registered Clients public RegisteredClient string ph_num string..
Populate An Array Using Constexpr at Compile-time http://stackoverflow.com/questions/13313980/populate-an-array-using-constexpr-at-compile-time c 11 constexpr share improve this question Ignoring ALL the issues indices to the rescue template unsigned... Is struct..
How do I get the directory that a program is running from? http://stackoverflow.com/questions/143174/how-do-i-get-the-directory-that-a-program-is-running-from with the default c run time library which is linked to by ALL processes in the system specially crafted exceptions avoided..
using catch(…) (ellipsis) for post-mortem analysis http://stackoverflow.com/questions/2183113/using-catch-ellipsis-for-post-mortem-analysis same affect as above . So it is always best to stop ALL exceptions from exiting a thread. will it not break handling..
How does C compute sin() and other math functions? http://stackoverflow.com/questions/2284860/how-does-c-compute-sin-and-other-math-functions anyone help me find them I feel like it's unlikely that ALL hardware that C will run on supports trig functions in hardware..
Performance of C++ vs Virtual Machine languages in high frequency finance http://stackoverflow.com/questions/3175072/performance-of-c-vs-virtual-machine-languages-in-high-frequency-finance be at the end points of the end point pipe stages. It is ALL custom synchronization classes that only synchronize when empty..
Building a subset of boost in windows http://stackoverflow.com/questions/439402/building-a-subset-of-boost-in-windows removed it and only had with filesystem it seemed to copy ALL libraries header files to the install path and only build the..
Compiling OpenCV code on a 64-bit mac http://stackoverflow.com/questions/5781198/compiling-opencv-code-on-a-64-bit-mac opencv lm lopencv_core lopencv_highgui lopencv_video ALL vision all ALL vision vision.o CC LDFLAGS o @ ^ vision.o vision.cpp.. lopencv_core lopencv_highgui lopencv_video ALL vision all ALL vision vision.o CC LDFLAGS o @ ^ vision.o vision.cpp CC LDFLAGS.. vision.cpp CC LDFLAGS c .PHONY clean clean rm rf .o core ALL I get the following output p g I usr local include opencv lm..
Levenshtein Distance: Inferring the edit operations from the matrix http://stackoverflow.com/questions/5849139/levenshtein-distance-inferring-the-edit-operations-from-the-matrix By decoding the Levenshtein matrix one can enumerate ALL such optimal sequences. The general idea is that the optimal..
Why do simple doubles like 1.82 end up being 1.819999999645634565360? [duplicate] http://stackoverflow.com/questions/6006200/why-do-simple-doubles-like-1-82-end-up-being-1-819999999645634565360 function Numb_Digits enum DECIMALS 10 WHOLE_NUMBS 20 ALL 30 template typename T unsigned long int Numb_Digits T numb.. double 9 length pow double 10 double 9 length break case ALL numb numb numb 10000000000 for numb 0 length numb int numb.. length int main double test 345.6457 cout Numb_Digits test ALL endl cout Numb_Digits test DECIMALS endl cout Numb_Digits test..
http://stackoverflow.com/questions/614302/c-header-order this question In a header file you have to include ALL the headers to make it compilable. And don't forget to use forward..
Managing stack with Lua and C++ http://stackoverflow.com/questions/6511432/managing-stack-with-lua-and-c program that recurses through a code base and will collect ALL of the strings that the lua script returns from ALL of the files..... ALL of the strings that the lua script returns from ALL of the files... I don't know exactly how reserve works but What..
Should ALL global variables be volatile-qualified? http://stackoverflow.com/questions/6858247/should-all-global-variables-be-volatile-qualified ALL global variables be volatile qualified In this example does..
http://stackoverflow.com/questions/8020113/c-include-guards very likely to be included twice it is good if you guard ALL your .h files. P.S. Note that you also have circular #include..
Do ALL virtual functions need to be implemented in derived classes? http://stackoverflow.com/questions/8931612/do-all-virtual-functions-need-to-be-implemented-in-derived-classes ALL virtual functions need to be implemented in derived classes.. Derived does not implement the bar function What if not ALL of my derived classes need the bar function but some do. Do..
|