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c++ Programming Glossary: setWhat is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one MyObject p2 p1 Copy and transfer ownership. p1 gets set to empty p2 DoSomething Works. p1 DoSomething Oh oh. Hopefully..
Why 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 to ask the captain which direction he wants. And then you set the switch appropriately. Trains are heavy and have a lot of..
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 defined manner to the basic source character set introducing new line characters for end of line indicators if.. expressions are executed. SNIP Each source character set member in a character literal or a string literal as well as.. to the corresponding member of the execution character set SNIP Adjacent string literal tokens are concatenated. White..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets empty brackets Is there any good reason that an empty set of round brackets parentheses isn't valid for calling the default..
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 Definitions h char any member of the source character set except the new line character and q char any member of the source.. character and q char any member of the source character set except the new line character and share improve this answer..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior . Where possible this International Standard defines a set of allowable behaviors. These define the nondeterministic aspects..
http://stackoverflow.com/questions/3106110/what-is-move-semantics the heap data we have just copied the pointer and then set the original pointer to null. In effect we have stolen the data.. on the other hand can just copy the pointer and then set the pointer in the source to null. It is okay to nullify the..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom so concludes the copy and swap idiom. Footnotes Why do we set mArray to null Because if any further code in the operator throws.. of dumb_array might be called and if that happens without setting it to null we attempt to delete memory that's already been.. delete memory that's already been deleted We avoid this by setting it to null as deleting null is a no operation. There are..
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 a pointer to the so called vtable of the class which is set in the constructor so brace initialization would be insufficient... enough about the aggregates. Now we can define a stricter set of types to wit POD's What are POD's and why they are special..
Why is iostream::eof inside a loop condition considered wrong? http://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong improve this question Because iostream eof will only be set after reading the end of the stream. It does not indicate that.. crap now we read the end and only now the eof bit will be set as well as the fail bit do stuff with now uninitialized data..
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 find that a neighbouring address has a rather big house set up on it that occupies three address Main Street 1 3 and your.. his own. This is the reason I chose a fixed size array. To set the stage assume that the second house we allocate will for..
http://stackoverflow.com/questions/6438086/iterator-invalidation-rules unaffected 23.2.2.3 1 Associative containers multi set map all iterators and references unaffected 23.1.2 8 Container.. is invalidated 23.2.2.3 3 Associative containers multi set map only iterators and references to the erased elements are..
How do you make a HTTP request with C++? http://stackoverflow.com/questions/1011339/how-do-you-make-a-http-request-with-c myCleanup standard request object. curlpp Easy myRequest Set the URL. myRequest.setOpt new curlpp options Url std string..
OpenCv 2.3 C - How to isolate object inside image http://stackoverflow.com/questions/10315551/opencv-2-3-c-how-to-isolate-object-inside-image 0 255 0 1 CV_AA cv imshow box img cv imwrite box.png img Set Region of Interest to the area defined by the box cv Rect roi..
http://stackoverflow.com/questions/1123080/why-do-we-need-typename-here do we need typename here template class T class Set public void insert const T item void remove const T item private.. T item private std list T rep template typename T void Set T remove const T item typename std list T iterator it question..
http://stackoverflow.com/questions/12135518/is-faster-than answer but here's what I can give In the Intel Instruction Set Reference they are all grouped together under one common instruction.. 0 and ST 1 and set CF PF ZF in EFLAGS fstp st 0 seta al Set al if above CF 0 and ZF 0 . test al al je .L2 Do something 1.. fucomip st st 1 same thing as above fstp st 0 setae al Set al if above or equal CF 0 . test al al je .L5 Do something 2..
C++ STL set update is tedious: I can't change an element in place http://stackoverflow.com/questions/2217878/c-stl-set-update-is-tedious-i-cant-change-an-element-in-place copy iterator ... update member value on copy varies Set.erase iterator Set.insert copy Basically the iterator return.. ... update member value on copy varies Set.erase iterator Set.insert copy Basically the iterator return by Set is a const_iterator.. iterator Set.insert copy Basically the iterator return by Set is a const_iterator and you can't change its value directly...
Printing lists with commas C++ http://stackoverflow.com/questions/3496982/printing-lists-with-commas-c but not C which I am forced to use here. I have a Set of Strings that I'm printing to out in a list and they need..
Is `long` guaranteed to be at least 32 bits? http://stackoverflow.com/questions/4329777/is-long-guaranteed-to-be-at-least-32-bits technology Universal Multiple Octet Coded Character Set UCS Part 1 Architecture and Basic Multilingual Plane 2 Defined..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers std endl Another vector vd std endl Pairs vp std endl Set ss std endl OMap om std endl UMap um std endl String cs std..
Regular expression to detect semi-colon terminated C++ for & while loops http://stackoverflow.com/questions/524548/regular-expression-to-detect-semi-colon-terminated-c-for-while-loops routine that does it without using a regular expression Set a position counter pos so that is points to just before the.. just before the opening bracket after your for or while . Set an open brackets counter openBr to 0 . Now keep incrementing..
Developing Internet Explorer Extensions? http://stackoverflow.com/questions/5643819/developing-internet-explorer-extensions writeable_registry.CreateSubKey RegData registryKey.SetValue Data TextToHighlight writeable_registry.Close private.. writeable_registry.CreateSubKey RegData registryKey.SetValue Data TextToHighlight if registryKey null TextToHighlight.. Implementation of IObjectWithSite int IObjectWithSite.SetSite object site this.site site if site null LoadOptions ..
What is the performance cost of having a virtual method in a C++ class? http://stackoverflow.com/questions/667634/what-is-the-performance-cost-of-having-a-virtual-method-in-a-c-class cost unless the function is something like a trivial Get Set accessor in which anything other than inline is kind of wasteful...
Create Random Number Sequence with No Repeats http://stackoverflow.com/questions/693880/create-random-number-sequence-with-no-repeats than if I just used a regular RNG and inserted into a Set until it was a specified length right Is there no better mathematical..
Audio output with video processing with opencv http://stackoverflow.com/questions/8187745/audio-output-with-video-processing-with-opencv NULL void show_frame IplImage img if screen screen SDL_SetVideoMode img width img height 0 0 if screen fprintf stderr.. stream aCodecCtx pFormatCtx streams audioStream codec Set audio settings from codec info SDL_AudioSpec wanted_spec wanted_spec.freq..
I don't want my Excel Add-In to return an array (instead I need a UDF to change other cells) http://stackoverflow.com/questions/8520732/i-dont-want-my-excel-add-in-to-return-an-array-instead-i-need-a-udf-to-change be placed in a regular module. Private Declare Function SetTimer Lib user32 _ ByVal HWnd As Long _ ByVal nIDEvent As Long.. in a non UDF routine If mCalculatedCells Is Nothing Then Set mCalculatedCells New Collection On Error Resume Next mCalculatedCells.Add.. Application.Caller.Address On Error GoTo 0 ' Setting resetting the timer should be the last action taken in the..
How to activate C++ 11 in CMake? http://stackoverflow.com/questions/10851247/how-to-activate-c-11-in-cmake help __ EDIT __ I forgot to mention that I have also tried SET CMAKE_CXX_FLAGS std c 0x which also does not work. c linux.. c 11 cmake share improve this question As it turns out SET CMAKE_CXX_FLAGS std c 0x does activate many C 11 features. The..
what are the fast algorithms to find duplicate elements in a collection and group them? http://stackoverflow.com/questions/1332527/what-are-the-fast-algorithms-to-find-duplicate-elements-in-a-collection-and-grou using std adjacent_find typedef set Type SET typedef SET iterator ITR typedef SET value_type VALUE typedef.. using std adjacent_find typedef set Type SET typedef SET iterator ITR typedef SET value_type VALUE typedef boost tuple.. typedef set Type SET typedef SET iterator ITR typedef SET value_type VALUE typedef boost tuple VALUE ITR ITR TUPLE typedef..
Boost.Log with CMake causing undefined reference error http://stackoverflow.com/questions/17844085/boost-log-with-cmake-causing-undefined-reference-error add a CMake variable before calling FIND_PACKAGE Boost ... SET Boost_USE_STATIC_LIBS ON FIND_PACKAGE Boost 1.54 COMPONENTS..
Convert QString into QByteArray with either UTF-8 or Latin1 encoding http://stackoverflow.com/questions/5288959/convert-qstring-into-qbytearray-with-either-utf-8-or-latin1-encoding QTextCodec codecForCStrings name NOT SET qDebug codecForLocale QTextCodec codecForLocale QTextCodec.. codecForLocale QTextCodec codecForLocale name NOT SET qDebug n1. Using QString QString char const dbg u00fc QString.. codecForCStrings default is Latin1 codecForCStrings NOT SET codecForLocale System 1. Using QString QString char const Input..
Debug and Release Library Linking with CMAKE (VISUAL STUDIO) http://stackoverflow.com/questions/5497348/debug-and-release-library-linking-with-cmake-visual-studio 2010 cmake share improve this question The solution is SET LINK_LIBRARY optimized Foo debug Foo_d target_link_libraries..
Can I pass a preprocessor definition to the resource compiler through the command line? http://stackoverflow.com/questions/7149572/can-i-pass-a-preprocessor-definition-to-the-resource-compiler-through-the-comman SomeProject.vcproj A batch file may look like @echo off SET CMDLINE_DEFINES 1 MSBUILD SomeProject.vcproj Using this batch..
How to read a CMake Variable in C++ source code http://stackoverflow.com/questions/7900661/how-to-read-a-cmake-variable-in-c-source-code place. So I have defined such a variable in the CMake file SET LIBINTERFACE_VERSION 1 CACHE INTEGER Version of libInterface..
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