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c++ Programming Glossary: yourWhat 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 common causes and how to fix them Feel free to edit add your own. c linker error undefined reference c faq unresolved external..
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 or the POSIX.1 environment. While using these names for your own purposes right now might not cause a problem they do raise..
http://stackoverflow.com/questions/236129/how-to-split-a-string-in-c Also please give precedence to elegance over efficiency in your answer. The best solution I have right now is #include iostream..
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 code c unix profiling share improve this question If your goal is to use a profiler use one of the suggested ones. However.. if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow.. generality the more layers of abstraction you have in your software the more likely you are to find that that is the cause..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three destructor copy constructor or copy assignment operator yourself you probably need to explicitly declare all three of them... Most of the time you do not need to manage a resource yourself because an existing class such as std string already does..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points where the FAQ idea started out in the first place so your answer is very likely to get read by those who came up with.. means anything can happen from daemons flying out of your nose to your girlfriend getting pregnant. What is the relation.. can happen from daemons flying out of your nose to your girlfriend getting pregnant. What is the relation between Undefined..
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 You check out the next morning but forget to give back your key. You steal the key A week later you return to the hotel.. later you return to the hotel do not check in sneak into your old room with your stolen key and look in the drawer. Your book.. to the hotel do not check in sneak into your old room with your stolen key and look in the drawer. Your book is still there...
In C++ source, what is the effect of extern “C”? http://stackoverflow.com/questions/1041866/in-c-source-what-is-the-effect-of-extern-c file that contains just the declaration of your function. Your function definition is contained in a binary format that was..
Why use iterators instead of array indices? http://stackoverflow.com/questions/131241/why-use-iterators-instead-of-array-indices an explicit loop you're avoiding re inventing the wheel. Your code is likely to be more efficient given the right algorithm..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol no need to #include a.h struct A struct B A pA #endif B_H Your main.cpp will now certainly compile. A couple of remarks Not..
What is the name of this operator: “-->”? http://stackoverflow.com/questions/1642028/what-is-the-name-of-this-operator not an operator . That's two separate operators and . Your condition code is decrementing x while returning x s original..
catch exception by pointer in C++ http://stackoverflow.com/questions/2023032/catch-exception-by-pointer-in-c way is to throw by value and catch by reference . Your example code throws a pointer which is a bad idea since you..
Dynamically allocating an array of objects http://stackoverflow.com/questions/255612/dynamically-allocating-an-array-of-objects from destroy until you put it into a specific state. Your object shoudl have appropriate methods for this. Example..
Why is there no call to the constructor? http://stackoverflow.com/questions/3810570/why-is-there-no-call-to-the-constructor most vexing parse share improve this question Nope. Your line Class object Declared a function. What you want to write..
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 of the file itself. There are a few obvious benefits Your data is represented in a form that makes sense for your problem.. OO spreadsheet files or even an HTML table rendering. Your memory footprint is likely to be smaller depends on relative..
http://stackoverflow.com/questions/4421706/operator-overloading the C standard library function objects are always copied. Your own function objects should therefore be cheap to copy. If a..
http://stackoverflow.com/questions/4757565/c-forward-declaration and thought that was the right one and used that instead. Your code would compile but wouldn't be doing what you expected...
C++11 rvalues and move semantics confusion http://stackoverflow.com/questions/4986673/c11-rvalues-and-move-semantics-confusion return std move tmp std vector int rval_ref return_vector Your third example is roughly equivalent to your first. The std move..
How do I tokenize a string in C++? http://stackoverflow.com/questions/53849/how-do-i-tokenize-a-string-in-c C c string split tokenize share improve this question Your simple case can easily be built using the std string find method...
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 In enough cases we need both of typename and template . Your code should look like the following template typename T typename..
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 your old room with your stolen key and look in the drawer. Your book is still there. Astonishing How can that be Aren't the..
Create WCF service for unmanaged C++ clients http://stackoverflow.com/questions/686452/create-wcf-service-for-unmanaged-c-clients try std string message IHelloServiceClientBridge SayHello Your Name Here AfxMessageBox CString message.c_str catch ... Run..
Why can't variables be declared in a switch statement? http://stackoverflow.com/questions/92396/why-cant-variables-be-declared-in-a-switch-statement directly to the label.The problem here is one of scope. Your curly brackets define the scope as everything inside the 'switch'..
What XML parser should I use in C++? http://stackoverflow.com/questions/9387610/what-xml-parser-should-i-use-in-c OK so full XML compliance doesn't matter to you. Your XML documents are either fully under your control or are guaranteed.. to you in your XML work Maximum XML Parsing Performance Your application needs to take XML and turn it into C datastructures..
http://stackoverflow.com/questions/988158/take-the-address-of-a-one-past-the-end-array-element-via-subscript-legal-by-the array 4 1 c c standards share improve this question Your example is legal but only because you're not actually using.. by deļ¬nition to E1 E2 Of course there's an obvious caveat Your example doesn't actually show an out of bounds pointer. it uses..
SSL Certificate, not authenticating via thrift, but OK via browser http://stackoverflow.com/questions/10964755/ssl-certificate-not-authenticating-via-thrift-but-ok-via-browser when openssl req asks for Common Name e.g. server FQDN or YOUR name put the FQDN of the host on which the Thrift program will..
Cuda version not working while serial working http://stackoverflow.com/questions/13630817/cuda-version-not-working-while-serial-working i 0 i N 2 i if idx i continue NOTE THIS LINE MISSING FROM YOUR GPU CODE Point2D other_pt a 2 i a 2 i 1 pol.cut curPt other_pt..
How to pass parameters correctly? http://stackoverflow.com/questions/15600499/how-to-pass-parameters-correctly you towards good design decisions. CONCERNING THE REST OF YOUR POST If i rewrite it as ... there will be 2 moves and no copy...
Downloading and integrating Qt5 with Visual Studio 2012 http://stackoverflow.com/questions/15826893/downloading-and-integrating-qt5-with-visual-studio-2012 OVERCOME THIS ISSUE IS TO COMPLETELY UNINSTALL AVAST FROM YOUR SYSTEM before building Qt. You can reinstall Avast after the..
http://stackoverflow.com/questions/15932767/missing-qrc-mimetypes-cpp-while-attempting-to-build-qt-on-windows-7-32-bit-bu OVERCOME THIS ISSUE IS TO COMPLETELY UNINSTALL AVAST FROM YOUR SYSTEM before building Qt. You can reinstall Avast after the..
Enumerate COM object (IDispatch) methods using ATL? http://stackoverflow.com/questions/2112302/enumerate-com-object-idispatch-methods-using-atl hr CComPtr IDispatch dispatch DISPID dispid WCHAR member YOUR FUNCTION NAME HERE DISPPARAMS dispparams Get your pointer to..
When are header-only libraries acceptable? http://stackoverflow.com/questions/2174657/when-are-header-only-libraries-acceptable couple of lines and check their respective performance in YOUR case. EDIT It's been pointed out by 'jalf' thanks that I should..
Unmangling the result of std::type_info::name http://stackoverflow.com/questions/281818/unmangling-the-result-of-stdtype-infoname Base ptr_base new Derived Please use smart pointers in YOUR code std cout Type of ptr_base type ptr_base std endl std cout..
Benchmark C++ vs Java, Unrealistic results http://stackoverflow.com/questions/7570484/benchmark-c-vs-java-unrealistic-results than C is an idiot. Averages don't matter. Performance on YOUR application matters. And here is my proof that gcc is precomputing..
Check if a class has a member function of a given signature http://stackoverflow.com/questions/87372/check-if-a-class-has-a-member-function-of-a-given-signature that is in boost serialization namespace so you have IN YOUR CLIENT CODE to open namespace boost and namespace serialization..
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