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c++ Programming Glossary: havehttp://stackoverflow.com/questions/236129/how-to-split-a-string-in-c over efficiency in your answer. The best solution I have right now is #include iostream #include sstream #include string..
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 can I use to profile C code in Linux I have a C application I'm in the process of optimizing. What tool.. see it. There is no educated guesswork required. If you do have a guess as to what the problem is this will prove or disprove.. the problem is this will prove or disprove it. You may have multiple performance problems of different sizes. If you clean..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three were in love with pointers. The person class might have looked like this class person char name int age public the constructor.. Explicit definitions Since memberwise copying does not have the desired effect we must define the copy constructor and the.. This is a dangerous point in the flow of execution We have temporarily invalidated the class invariants and the next statement..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points question Disclaimer Okay. This answer is a bit long. So have patience while reading it. If you already know these things.. and no side effects of subsequent evaluations shall have taken place. §1.9 7 Side effects What are side effects Evaluation.. at which the dust has settled and all side effects which have been seen so far are guaranteed to be complete. What are the..
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 do stuff using int Consequently the compiler needs to have access to the implementation of the methods to instantiate them.. int or float If my explanation isn't clear enough you can have a look at the C FaqLite on this subject . share improve this..
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 a local variable's memory be accessed outside its scope I have the following code. int foo int a 5 return a int main int p.. the contents of a hotel room drawer inaccessible if you haven't rented the room Well obviously that scenario can happen in.. you come in tearing your book to pieces. The hotel could have removed the table and book entirely and replaced it with a wardrobe...
What's the Right Way to use the rand() Function in C++? http://stackoverflow.com/questions/1117292/whats-the-right-way-to-use-the-rand-function-in-c only thing I could think of to make this more random is to Have the user input a number and set that as the seed which would..
Good C++ GUI library for Windows http://stackoverflow.com/questions/115045/good-c-gui-library-for-windows and they don't use modern C features and standard library. Have a rich set of controls with decent features. The ability to.. are available after purchase then it's considered ok. Have a form designer in some way . Yeah it would be great. After..
c++ exception : throwing std::string http://stackoverflow.com/questions/134569/c-exception-throwing-stdstring
http://stackoverflow.com/questions/2037736/finding-size-of-int-array into a pointer type when you pass it to a function. Have a look at this. In order to correctly print the sizeof an array..
How do I call native C++ from C#? http://stackoverflow.com/questions/2211867/how-do-i-call-native-c-from-c c# c c cli managed c share improve this question Have you take a look at C CLI Let me give a very short example. Here..
What does int argc, char *argv[] mean? http://stackoverflow.com/questions/3024197/what-does-int-argc-char-argv-mean #include iostream int main int argc char argv std cout Have argc arguments std endl for int i 0 i argc i std cout argv i..
Programmatically reading a web page http://stackoverflow.com/questions/389069/programmatically-reading-a-web-page specific data c c http share improve this question Have a look at the cURL library #include stdio.h #include curl curl.h..
What is the proper declaration of main? http://stackoverflow.com/questions/4207134/what-is-the-proper-declaration-of-main types and what are their meanings Is this system specific Have those rules changed over time What happens if I violate them..
Is main() really start of a C++ program? http://stackoverflow.com/questions/4783404/is-main-really-start-of-a-c-program function which is supposed to be the start of the program. Have a look at the output here http www.ideone.com Niy0R I also compiled..
Generating random integer from a range http://stackoverflow.com/questions/5008804/generating-random-integer-from-a-range function c random share improve this question Have you tried output min rand int max min 1 This is still slightly..
Is there a way to instantiate objects from a string holding their class name? http://stackoverflow.com/questions/582331/is-there-a-way-to-instantiate-objects-from-a-string-holding-their-class-name what object was used for initializing or assigning to it. Have a look at its documentation here . Finally the use of a raw..
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 hinted at by the introductory text. The template keyword Have you ever wondered how the following is parsed boost function..
Simple object detection using OpenCV and machine learning http://stackoverflow.com/questions/6416117/simple-object-detection-using-opencv-and-machine-learning question Well basically you need to detect circles . Have you seen cvHoughCircles Are you allowed to use it This page..
Difference between try-catch syntax for function http://stackoverflow.com/questions/6756931/difference-between-try-catch-syntax-for-function behavior in a value returning function 6.6.3 . References Have a look at this must read resource here for more details explanation...
Have you used any of the C++ interpreters (not compilers)? http://stackoverflow.com/questions/69539/have-you-used-any-of-the-c-interpreters-not-compilers you used any of the C interpreters not compilers I am curious..
Of Memory Management, Heap Corruption, and C++ http://stackoverflow.com/questions/7525/of-memory-management-heap-corruption-and-c the Google Performance Tools as a replacement malloc new. Have you cleaned out all your object files and started over Perhaps..
Is the practice of returning a C++ reference variable, evil? http://stackoverflow.com/questions/752658/is-the-practice-of-returning-a-c-reference-variable-evil I'm imagining things and done this in a fair few places... Have I misunderstood Is it evil If so just how evil I feel that because..
Compelling examples of custom C++ STL allocators? http://stackoverflow.com/questions/826569/compelling-examples-of-custom-c-stl-allocators to ditch the standard STL allocators for a custom solution Have you run across any situations where it was absolutely necessary..
How to call managed C++ methods from Un-managed C++ http://stackoverflow.com/questions/15772765/how-to-call-managed-c-methods-from-un-managed-c It Works Console ReadLine return 0 Now ONCE AGAIN I HAVE researched this. I have seen allllllll the bad overly complicated..
Using a class function in int main() http://stackoverflow.com/questions/5624690/using-a-class-function-in-int-main calling my functions from my main program. These functions HAVE to be in my class. How do I access them from my int main #include..
Simple object detection using OpenCV and machine learning http://stackoverflow.com/questions/6416117/simple-object-detection-using-opencv-and-machine-learning color it will probably be white but it might change. I HAVE to use machine learning doesn't have to be a complex and reliable..
http://stackoverflow.com/questions/6724626/c-constructor class members there is no practical overhead. When do you HAVE TO use member Initializer list You will have rather forced to.. have a default constructor A code Example that depict the HAVE TO cases class MyClass public int i reference member has to..
Why do i need double layer of indirection for macros? http://stackoverflow.com/questions/8231966/why-do-i-need-double-layer-of-indirection-for-macros want the macros expanded first int which case you CAN'T HAVE double layer macros you need to do it directly. share improve..
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