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c++ Programming Glossary: addIs 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 people say both things. Please cite text as proof. Also add other cases please. c initalization share improve this question.. has all constructors available to call and in addition can do any implicit conversion it needs to match up argument..
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 are common causes and how to fix them Feel free to edit add your own. c linker error undefined reference c faq unresolved..
Most vexing parse: why doesn't A a(()); work? http://stackoverflow.com/questions/1424510/most-vexing-parse-why-doesnt-a-a-work the first case the usual workaround for this issue is to add an extra set of brackets parenthesis around the B as the compiler..
http://stackoverflow.com/questions/1461432/what-is-array-decaying reference example will give proper sizeof info. Edited to add Note it's not really by value just idiomatically so. The purpose..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets 2 parameters and fails to compile. The workaround is to add another pair of parentheses std vector T v std istream_iterator..
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 in the std namespace is reserved. You are allowed to add template specializations though. From the 2003 C Standard 17.4.3.2.1.. includes errno math_errhandling setjmp and va_end . Some additional classes of identifier names are reserved for future extensions.. 'E' followed a digit or uppercase letter may be used for additional error code names. See Error Reporting. Names that begin..
What is the difference between new/delete and malloc/free? http://stackoverflow.com/questions/240212/what-is-the-difference-between-new-delete-and-malloc-free they call malloc free is implementation defined. Can add a new memory allocator to deal with low memory set_new_handler..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom it also makes sense to provide a swap function. We need to add swap functionality to our class and we do that as follows class..
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 type of the object. const_cast can be used to remove or add const to a variable no other C cast is capable of removing it.. based on const for instance. It can also be used to add const to an object such as to call a member function overload...
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring UTF 32 is 4 bytes per characters so there is no much to add if only that a UTF 8 text and UTF 16 text will always use less..
How do you set, clear and toggle a single bit in C/C++? http://stackoverflow.com/questions/47981/how-do-you-set-clear-and-toggle-a-single-bit-in-c-c Checking a bit You didn't ask for this but I might as well add it. To check a bit AND it with the bit you want to check bit..
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 Tail ... template typename U struct inUnion Q where to add typename template here typedef Tail inUnion U dummy template.. in choking on it. I also know that I should be able to add template somewhere to tell the compiler that inUnion is a template.. string is a compile time error. The simple solution was to add a template typename U struct inUnion . The idea is simple I..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 Add a new file main.cpp to the folder Source Files then add this code to main.cpp #include stdio.h #include cv.h #include.. and edit the field Additional Include Directories to add these 3 paths for the headers C OpenCV2.3 build include opencv.. and include opencv2 if for the C interface. We are also adding the folder include to prevent our build from being broken..
Installing OpenCV 2.4.3 in Visual C++ 2010 Express [closed] http://stackoverflow.com/questions/10901905/installing-opencv-2-4-3-in-visual-c-2010-express to the property dialog select Linker &rarr Input &rarr Additional Dependencies to add new entries. On the popup dialog.. you need to repeat adding the OpenCV directories and in Additional Dependencies section use opencv_core243.lib opencv_imgproc243.lib.. write the real code. Right click your project and select Add &rarr New Item... &rarr Visual C &rarr C File . Name your file..
Is it okay to inherit implementation from STL containers, rather than delegate? http://stackoverflow.com/questions/2034916/is-it-okay-to-inherit-implementation-from-stl-containers-rather-than-delegate more useful to the user than std vector ones... Add a few domain specific helper methods... Perhaps modify or hide..
How to use Boost in Visual Studio 2010 http://stackoverflow.com/questions/2629421/how-to-use-boost-in-visual-studio-2010 directory BOOST_PATH that resulted from running bootstrap. Add in a line that read using mpi note the space before the ' '.. directory BOOST_PATH that resulted from running bootstrap. Add in the following two lines adjusting as appropriate for your..
Why does C++ compilation take so long? http://stackoverflow.com/questions/318398/why-does-c-compilation-take-so-long float and each one will has to be compiled separately. Add to this that templates make up a full turing complete sub language..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers on SO Upupdate This has now been implemented thanks to Xeo Add namespaces so that the helper classes don't bleed into the global.. helper classes don't bleed into the global namespace. Done Add template aliases or something similar to facilitate making custom..
How to build Qt for Visual Studio 2010 http://stackoverflow.com/questions/5601950/how-to-build-qt-for-visual-studio-2010 then you can set these there too. Qt Visual Studio Add in Here you go after a logoff logon or a restart all the Qt.. . Now you can download and install the Visual Studio Add in qt vs addin 1.1.9.exe from the Qt download page it will work..
Vim and Ctags tips and tricks [closed] http://stackoverflow.com/questions/563616/vim-and-ctags-tips-and-tricks C W C Open the definition in a horizontal split Add these lines in vimrc map C tab split CR exec tag .expand cword..
Developing Internet Explorer Extensions? http://stackoverflow.com/questions/5643819/developing-internet-explorer-extensions Hope you understand Creating a Working Internet Explorer 8 Addon I am using Visual Studio 2010 C# 4 .Net Framework 4 so some.. a class library. I called mine InternetExplorerExtension . Add these references to the project Interop.SHDocVw Microsoft.mshtml.. Reference Include System.Xml Create the following files IEAddon.cs using System using System.Collections.Generic using System.Runtime.InteropServices..
How to determine CPU and memory consumption from inside a process? http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process cpuTotal void init PdhOpenQuery NULL NULL &cpuQuery PdhAddCounter cpuQuery L Processor _Total Processor Time NULL &cpuTotal.. &memInfo long long totalVirtualMem memInfo.totalram Add other values in next statement to avoid int overflow on right.. long long virtualMemUsed memInfo.totalram memInfo.freeram Add other values in next statement to avoid int overflow on right..
Create WCF service for unmanaged C++ clients http://stackoverflow.com/questions/686452/create-wcf-service-for-unmanaged-c-clients This Windows NT Service will host the WCF Service. Add a WCF Service named HelloService to the project. To do this.. the project in the Solution Explorer window and select the Add New Item... menu item. In the Add New Item dialog select the.. window and select the Add New Item... menu item. In the Add New Item dialog select the C# WCF Service template and click..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 program if c 27 break return 0 What have I done so far Added build bin and one of build x86 x64 vc9 vc10 mingw bin to my.. x86 x64 vc9 vc10 mingw bin to my system path to use DLLs . Added build x86 x64 vc9 vc10 mingw lib or build x86 x64 vc9 vc10.. staticlib as library directories to my linker settings. Added build include and build include opencv as include directories..
Summing struct members inside a vector http://stackoverflow.com/questions/1030608/summing-struct-members-inside-a-vector member make_transform_iterator v.end member 0 EDITED TO ADD C 11 lambda syntax This becomes somewhat clearer with the C..
Recursive hard disk search with FindFirstFile & FindNextFile C++ http://stackoverflow.com/questions/15068475/recursive-hard-disk-search-with-findfirstfile-findnextfile-c strFoundFilePath strFoundFilePath strFile TODO ADD TO COLLECTION TYPE if bStopWhenFound break CloseHandle.. strFile strFoundFilePath strPathToSearch strFile TODO ADD TO COLLECTION TYPE if bStopWhenFound break while FindNextFile..
Boost::spirit::qi defining a calculator for nullaries http://stackoverflow.com/questions/15486531/boostspiritqi-defining-a-calculator-for-nullaries double operator return x_ op y_ Value x_ y_ and have ADD SUB etc. From the examples I've seen I'd expect the rules to.. to be defined like this expression term lit ' ' term ADD _val _1 lit ' ' term SUB _val _1 but that doesn't seem to.. What is it that you want to do with the instances of 'ADD' 'SUB' that you seem to magically will into your rules Right..
How do you compile OpenSSL for x64? http://stackoverflow.com/questions/158232/how-do-you-compile-openssl-for-x64 it. Run nmake f ms nt.mak EDIT the ms do_win64a file and ADD debug to all lines except the ml64 and the last two lines Run.. do_win64a Repeat steps 4 and 5 EDIT the ms nt.mak file and ADD Zi to the CFLAG list Run nmake f ms nt.mak share improve this..
What is the fastest integer division supporting division by zero no matter what the result is? http://stackoverflow.com/questions/16777456/what-is-the-fastest-integer-division-supporting-division-by-zero-no-matter-what with the ARM compiler f PROC RSBS r2 r1 #1 MOVCC r2 #0 ADD r1 r1 r2 B __aeabi_idivmod My code with GCC f str lr sp # 4..
http://stackoverflow.com/questions/16778399/boost-spirit-compile-issue operator return x_ op y_ Value x_ y_ BINARY_FUNCTOR ADD BINARY_FUNCTOR SUB BINARY_FUNCTOR MUL BINARY_FUNCTOR DIV struct.. qi expression term _val _1 ' ' term _val phx construct ADD _val _1 ' ' term _val phx construct SUB _val _1 term factor.. operator return x_ op y_ Value x_ y_ BINARY_FUNCTOR ADD BINARY_FUNCTOR SUB BINARY_FUNCTOR MUL BINARY_FUNCTOR DIV struct..
Does “&s[0]” point to contiguous characters in a std::string? http://stackoverflow.com/questions/1986966/does-s0-point-to-contiguous-characters-in-a-stdstring that does not use contiguous storage. EDITED TO ADD Following the comments below it is guaranteed by the current..
OpenCV - getting the slider to update its position during video playback http://stackoverflow.com/questions/5047913/opencv-getting-the-slider-to-update-its-position-during-video-playback this question This is the actual working code PROGRAM TO ADD A UPDATING TRACKBAR TO A VIDEO #include cv.h #include highgui.h..
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