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c++ Programming Glossary: idIn C++ source, what is the effect of extern “C”? http://stackoverflow.com/questions/1041866/in-c-source-what-is-the-effect-of-extern-c putting 'extern C ' into C code do For example extern C void foo c c extern linkage name mangling share improve this.. C compiler cannot just use the function name as a unique id to link to so it mangles the name by adding information about.. Just so you know you can specify C linkage to each individual declaration definition explicitly or use a block to group..
Append an int to a std::string http://stackoverflow.com/questions/10516196/append-an-int-to-a-stdstring int ClientID 666 query select logged from login where id query.append char ClientID c std share improve this question.. std ostringstream s s select logged from login where id ClientID std string query s.str std to_string C 11 std string.. C 11 std string query select logged from login where id std to_string ClientID boost lexical_cast #include boost lexical_cast.hpp..
Calling Objective-C method from C++ method? http://stackoverflow.com/questions/1061005/calling-objective-c-method-from-c-method Objective C method FROM C int MyObjectDoSomethingWith void myObjectInstance void parameter #endif MyObject.h #import MyObject.. FROM C int MyObjectDoSomethingWith void myObjectInstance void parameter #endif MyObject.h #import MyObject C Interface.h An.. function you want to call from C int doSomethingWith void aParameter @end MyObject.mm #import MyObject.h @implementation..
Is there a simple script to convert C++ enum to string? http://stackoverflow.com/questions/201593/is-there-a-simple-script-to-convert-c-enum-to-string GCCXML on your sample code produces GCC_XML Namespace id _1 name members _3 mangled _Z2 Namespace id _2 name std context.. Namespace id _1 name members _3 mangled _Z2 Namespace id _2 name std context _1 members mangled _Z3std Enumeration id.. _2 name std context _1 members mangled _Z3std Enumeration id _3 name MyEnum context _1 location f0 1 file f0 line 1 EnumValue..
Which Typesafe Enum in C++ Are You Using? http://stackoverflow.com/questions/217549/which-typesafe-enum-in-c-are-you-using struct TypesafeEnum Construction public TypesafeEnum id next_id name TypesafeEnum const std string n id next_id name.. TypesafeEnum Construction public TypesafeEnum id next_id name TypesafeEnum const std string n id next_id name n Operations.. id next_id name TypesafeEnum const std string n id next_id name n Operations public bool operator const TypesafeEnum..
How can I add reflection to a C++ application? http://stackoverflow.com/questions/41453/how-can-i-add-reflection-to-a-c-application has or like getting the string representation of a class id then i'm afraid there is no Standard C way of doing this. You.. the string representation of a class id then i'm afraid there is no Standard C way of doing this. You have to use either.. high level inspection like C# or Java has then I'm afraid i have to tell you there is no way without some effort. share..
How can I read and manipulate CSV file data in C++? http://stackoverflow.com/questions/415515/how-can-i-read-and-manipulate-csv-file-data-in-c something like this as your data model struct Customer int id std string first_name std string last_name struct std string.. CSVReader const std string inputFile bool hasNextLine void readNextLine std vector std string fields private secrets class.. CSVWriter public CSVWriter const std string outputFile void writeNextLine const std vector std string fields private more..
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 typename T For the last node Tn. struct UnionNode T void ... template typename U struct inUnion char fail sizeof U Cannot.. somewhere to tell the compiler that inUnion is a template id. But where exactly And should it then assume that inUnion is.. T3 derives from UnionNode T1 UnionNode T2 UnionNode T3 void and UnionNode T Tail derives from Tail. The specialization UnionNode..
How can I efficiently select a Standard Library container in C++11? http://stackoverflow.com/questions/10699265/how-can-i-efficiently-select-a-standard-library-container-in-c11 Example Suppose that I have several persons with a unique ID associated to them and I would like to retrieve a person data.. them and I would like to retrieve a person data from its ID as simply as possible. I want a find function thus an associative.. less about order thus an unordered_ container 1.2. My key ID is separate from the value it is associated with thus a map..
How to get the cpu usage per thread on windows (win32) http://stackoverflow.com/questions/1393006/how-to-get-the-cpu-usage-per-thread-on-windows-win32 a thread not the total for a process . I have the thread ID. I know that Sysinternals Process Explorer can display this..
Get HWND on windows with Qt5 (from WId) http://stackoverflow.com/questions/14048565/get-hwnd-on-windows-with-qt5-from-wid this winId and I need to some way to convert this ID into the HWND id or some other way to get this. c windows qt..
How to implement serialization in C++ http://stackoverflow.com/questions/1809670/how-to-implement-serialization-in-c deserialize istream is int id is id switch id case EXAMPLE_ID return new ExampleClass is ... void serialize ostream os os.. ExampleClass is ... void serialize ostream os os getClassID serializeMe os protected int getClassID 0 void serializeMe ostream.. os os getClassID serializeMe os protected int getClassID 0 void serializeMe ostream os 0 The above works pretty well..
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 returns a NULL will throw on failure Are called with Type ID compiler calculates the size Has a version explicitly to handle..
How do I read from a version resource in Visual C++ http://stackoverflow.com/questions/316626/how-do-i-read-from-a-version-resource-in-visual-c return false get the name and version strings LPVOID pvProductName NULL unsigned int iProductNameLen 0 LPVOID pvProductVersion.. pvProductName NULL unsigned int iProductNameLen 0 LPVOID pvProductVersion NULL unsigned int iProductVersionLen 0 replace.. iProductVersionLen 0 replace 040904e4 with the language ID of your resources if VerQueryValue data 0 _T StringFileInfo..
“Step over” when debugging multithreaded programs in Visual Studio http://stackoverflow.com/questions/336628/step-over-when-debugging-multithreaded-programs-in-visual-studio steps for adding a conditional breakpoint on Thread ID which are extremely easy but not obvious until you know them... guess is usually the first thread that gets there . Enter TID into the watch window. Add a break point with the condition.. the watch window. Add a break point with the condition TID value of TID from Watch Window Example TID 0x000016a0 Continue..
How to get a list of video capture devices (web cameras) on windows? (C++) http://stackoverflow.com/questions/4286223/how-to-get-a-list-of-video-capture-devices-web-cameras-on-windows-c pParam HRESULT hr S_OK HWND hList GetDlgItem hwnd IDC_DEVICE_LIST Display a list of the devices. for DWORD i 0 i.. #pragma comment lib strmiids HRESULT EnumerateDevices REFGUID category IEnumMoniker ppEnum Create the System Device Enumerator... ICreateDevEnum pDevEnum HRESULT hr CoCreateInstance CLSID_SystemDeviceEnum NULL CLSCTX_INPROC_SERVER IID_PPV_ARGS pDevEnum..
Vectors, structs and std::find http://stackoverflow.com/questions/589985/vectors-structs-and-stdfind know how to search through the vector. I want to find an ID of the monster inside the vector. DWORD monster 0xFFFAAA it..
How can I create directory tree in C++/Linux? http://stackoverflow.com/questions/675039/how-can-i-create-directory-tree-in-c-linux lint Prevent over aggressive optimizers from eliminating ID string const char jlss_id_mkpath_c @ # Id mkpath.c v 1.13 2012..
How can I detect only deleted, changed, and created files on a volume? http://stackoverflow.com/questions/7421440/how-can-i-detect-only-deleted-changed-and-created-files-on-a-volume out the full path for the files by matching the parent IDs with the file IDs of the directories. One approach would be.. for the files by matching the parent IDs with the file IDs of the directories. One approach would be to use a buffer large.. NULL OPEN_ALWAYS FILE_FLAG_NO_BUFFERING NULL if drive INVALID_HANDLE_VALUE printf CreateFile u n GetLastError return 0 printf..
http://stackoverflow.com/questions/750178/typedef-pointers-a-good-idea API in the future if the need arises for instance using an ID rather than a pointer or vice versa . Since the pointer was..
Unique hardware ID in Mac OS X http://stackoverflow.com/questions/933460/unique-hardware-id-in-mac-os-x hardware ID in Mac OS X Mac OS X development is a fairly new animal for.. I need to be able to generate some kind of hardware ID. It doesn't have to be anything fancy Ethernet MAC address hard.. c ioreg rd1 c IOPlatformExpertDevice awk ' IOPlatformUUID print 3 ' proc.start bin bash args proc.waitForFinished QString..
C++ Get name of type in template http://stackoverflow.com/questions/1055452/c-get-name-of-type-in-template throw ParseError file section key it second TypeName T Id rather not have to make specific overloads for every type that..
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++) http://stackoverflow.com/questions/1546789/clean-code-to-printf-size-t-in-c-or-nearest-equivalent-of-c99s-z-in-c and ptrdiff_t arguments Visual C for instance use Iu and Id respectively I think that gcc will allow you to use zu and zd... JL_SIZE_T_SPECIFIER Iu #define JL_SSIZE_T_SPECIFIER Id #define JL_PTRDIFF_T_SPECIFIER Id #elif defined __GNUC__ #define.. JL_SSIZE_T_SPECIFIER Id #define JL_PTRDIFF_T_SPECIFIER Id #elif defined __GNUC__ #define JL_SIZE_T_SPECIFIER zu #define..
Unable to send SMS using AT Commands http://stackoverflow.com/questions/16402403/unable-to-send-sms-using-at-commands portName ports counter .portName QString productId ports counter .productID QString physicalName ports counter.. QString physicalName ports counter .physName QString vendorId ports counter .vendorID QString friendName ports counter .friendName.. portName.toLocal8Bit .constData string convertedProductId productId.toLocal8Bit .constData string convertedPhysicalName..
Cross platform format string for variables of type size_t? http://stackoverflow.com/questions/174612/cross-platform-format-string-for-variables-of-type-size-t they are 4. On glibc I have zd and on Win32 I can use Id . Is there an elegant way to handle this c c cross platform..
Is there an easy way to find small open source projects? [closed] http://stackoverflow.com/questions/193473/is-there-an-easy-way-to-find-small-open-source-projects get into an open source project to get myself out there. Id like to find one that is preferably a small project file size..
how to get process handle from process id? http://stackoverflow.com/questions/2221103/how-to-get-process-handle-from-process-id to get process handle from process id I have process Id I want to get its process handle. Is there any API available.. this question OpenProcess PROCESS_ALL_ACCESS TRUE procId You'll need to verify that you're using a valid process ID and..
Game Objects Talking To Each Other http://stackoverflow.com/questions/4574016/game-objects-talking-to-each-other _iMessageID class IEventMessagingSystem Post int iMessageId Post int iMessageId float fData Post int iMessageId int iData.. IEventMessagingSystem Post int iMessageId Post int iMessageId float fData Post int iMessageId int iData ... Post TMessageEvent.. Post int iMessageId float fData Post int iMessageId int iData ... Post TMessageEvent pMessage Post int iMessageId..
How to start writing a PHP5 extension in C++ http://stackoverflow.com/questions/492014/how-to-start-writing-a-php5-extension-in-c was in the m4 file which looked like this dnl dnl Id dnl PHP_ARG_ENABLE hello whether to enable hello functions enable..
Does multithreading emphasize memory fragmentation? http://stackoverflow.com/questions/5875989/does-multithreading-emphasize-memory-fragmentation 0 std deque std pair char uint64_t pointers const int myId omp_get_thread_num for int j 0 j NUM_ALLOCATIONS j new allocation.. j new allocation const size_t allocSize allocations myId 100 j NUM_PRE_ALLOCS char pnt NULL if USE_NEW pnt new char.. fill pnt fill char j 255 if DEBUG_ALLOCS std cout Id myId New alloc pointers.size bytes allocSize at uint64_t pnt..
How is LLVM isa<> implemented? http://stackoverflow.com/questions/6038330/how-is-llvm-isa-implemented hierarchy We preclude multi inheritance from this system Identifying an object class Take a simple hierarchy for example.. can be instantiated the others would be useless . enum BaseId DerivedRightId MostDerivedL1Id MostDerivedL2Id MostDerivedRId.. the others would be useless . enum BaseId DerivedRightId MostDerivedL1Id MostDerivedL2Id MostDerivedRId Then the Base..
Getting Machine Serial number and CPU Id using c/c++ in Linux http://stackoverflow.com/questions/6491566/getting-machine-serial-number-and-cpu-id-using-c-c-in-linux Machine Serial number and CPU Id using c c in Linux How can i get Machine Serial number and.. c c in Linux How can i get Machine Serial number and CPU Id in Linux system. Sample code is highly appreciated. Regards..
How can I create directory tree in C++/Linux? http://stackoverflow.com/questions/675039/how-can-i-create-directory-tree-in-c-linux from eliminating ID string const char jlss_id_mkpath_c @ # Id mkpath.c v 1.13 2012 07 15 00 40 37 jleffler Exp #endif lint..
xcode with boost : linker(Id) Warning about visibility settings http://stackoverflow.com/questions/8685045/xcode-with-boost-linkerid-warning-about-visibility-settings with boost linker Id Warning about visibility settings I have been using a boost..
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 class type Id that is safe and holds across library boundaries I would appreciate..
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