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c++ Programming Glossary: sawC++ iterate into nested struct field with boost fusion adapt_struct http://stackoverflow.com/questions/12084781/c-iterate-into-nested-struct-field-with-boost-fusion-adapt-struct nested structs. It uses a 'more Boost' solution since I saw it in the Boost.Serialization library. See also below and live..
Compiling Qt 4.8.x for Visual Studio 2012 http://stackoverflow.com/questions/12113400/compiling-qt-4-8-x-for-visual-studio-2012 message was logged anywhere during compilation . I also saw this question which asks the same but for VS 2012 RC which is..
initializing a C++ std::istringstream from an in memory buffer? http://stackoverflow.com/questions/1448467/initializing-a-c-stdistringstream-from-an-in-memory-buffer because std streambuf doesnt have such a constructor. I saw the following suggestion. std istringstream tmp_blob tmp_blob.rdbuf..
How to check for equals? (0 == i) or (i == 0) [closed] http://stackoverflow.com/questions/148298/how-to-check-for-equals-0-i-or-i-0 In particular this question popped into my mind when I saw the following code if DialogResult.OK MessageBox.Show Message..
http://stackoverflow.com/questions/1742848/why-exactly-do-i-need-an-explicit-upcast-when-implementing-queryinterface-in-a IInterface1 public IInterface2 Almost every document I saw suggests that when I implement QueryInterface for IUnknown I..
casting via void* instead of using reinterpret_cast http://stackoverflow.com/questions/1863069/casting-via-void-instead-of-using-reinterpret-cast p.s. I know what is reinterpret_cast used for but I never saw that is used in this way c casting void pointers language lawyer..
Why pure virtual function is initialized by 0? http://stackoverflow.com/questions/2156634/why-pure-virtual-function-is-initialized-by-0 The curious 0 syntax was chosen ... because at the time I saw no chance of getting a new keyword accepted. He also states..
Do you use curly braces for additional scoping? [closed] http://stackoverflow.com/questions/249009/do-you-use-curly-braces-for-additional-scoping I didn't know that it could be done like this until I saw this SO question . In the above link Eli mentioned that They..
In C/C++, is char* arrayName[][] a pointer to a pointer to a pointer OR a pointer to a pointer? http://stackoverflow.com/questions/3920729/in-c-c-is-char-arrayname-a-pointer-to-a-pointer-to-a-pointer-or-a-pointe var or char var Is this incorrect I was confused because I saw a char cast as a char in a simple text book example. I pasted..
Pure virtual functions may not have an inline definition. Why? http://stackoverflow.com/questions/4174694/pure-virtual-functions-may-not-have-an-inline-definition-why a new keyword pure or abstract because at the time I saw no chance of getting a new keyword accepted. Had I suggested..
virtual inheritance [duplicate] http://stackoverflow.com/questions/419943/virtual-inheritance answers What is the meaning of virtual inheritance I saw the following code and didn't understand the meaning of the..
Alternative virtual mechanism implementations? http://stackoverflow.com/questions/4352032/alternative-virtual-mechanism-implementations messy. This is because the complete type has to see saw around as the object is constructed. As a consequence of these..
Performance of qsort vs std::sort? http://stackoverflow.com/questions/4708105/performance-of-qsort-vs-stdsort std qsort due to the fact of inline. I tested myself and I saw that qsort is faster Could anyone help me to explain this strange..
http://stackoverflow.com/questions/5217519/opencv-cvwaitkey cvWaitKey Can you just explain what cvWaitKey does I saw it from the OpenCV reference but it wasn't clear for me Thanks...
How to setup Google C++ Testing Framework (gtest) on Visual Studio 2005 http://stackoverflow.com/questions/531941/how-to-setup-google-c-testing-framework-gtest-on-visual-studio-2005 another copy of the runtime library which is the error you saw btw this shouldn't make a difference if you are using MFC or..
Should I learn C before learning C++? [closed] http://stackoverflow.com/questions/598552/should-i-learn-c-before-learning-c but I have looked through some C code before. From what I saw in the .cpp code in this game it didn't look very different...
STL remove doesn't work as expected? http://stackoverflow.com/questions/6456870/stl-remove-doesnt-work-as-expected namely std remove is not similar to list remove as we saw that the former doesn't really remove the items from the container..
http://stackoverflow.com/questions/7908248/in-a-templated-derived-class-why-do-i-need-to-qualify-base-class-member-names-w a member function While I investigate source code of Qt I saw that trolltech guys explicitly use this keyword to access a..
Unnecessary curly braces in C++? http://stackoverflow.com/questions/9704083/unnecessary-curly-braces-in-c in C When doing a code review for a colleague today I saw a peculiar thing. He had surrounded his new code with curly.. don't think that the curly braces should be in our code. I saw some good examples in all the answers on why one could surround..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python if cin.eof line_count sec int time NULL start cerr Saw line_count lines in sec seconds. if sec 0 lps line_count sec.. Here are my results cat test_lines . readline_test_cpp Saw 5570000 lines in 9 seconds. Crunch speed 618889 cat test_lines.. done Test run 1 at Mon Feb 20 21 29 28 EST 2012 CPP Saw 5570001 lines in 9 seconds. Crunch speed 618889 Python Read..
Why is splitting a string slower in C++ than Python? http://stackoverflow.com/questions/9378500/why-is-splitting-a-string-slower-in-c-than-python count 1 delta_sec int time.time start_time print Python Saw 0 lines in 1 seconds. .format count delta_sec end '' if delta_sec.. for final over read sec int time NULL start cerr C Saw count lines in sec seconds. if sec 0 lps count sec cerr Crunch.. . split.py 15.61 real 0.01 user 0.38 sys Python Saw 20000000 lines in 15 seconds. Crunch Speed 1333333 usr bin time..
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