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c++ Programming Glossary: unOpengl linux undefined reference to basic functions http://stackoverflow.com/questions/10000925/opengl-linux-undefined-reference-to-basic-functions linux undefined reference to basic functions I wrote a program on Ubuntu.. linux undefined reference to basic functions I wrote a program on Ubuntu 11.04 that uses freeglut... reference to basic functions I wrote a program on Ubuntu 11.04 that uses freeglut. It worked fine. Then I got another..
Define std::string in C++ without escape characters http://stackoverflow.com/questions/10501599/define-stdstring-in-c-without-escape-characters characters What would be the most painless way to input un escaped characters sequence to std string Instead of std string..
Inheriting std::istream or equivalent http://stackoverflow.com/questions/1231461/inheriting-stdistream-or-equivalent a stream. QDataStream which is a stream from Qt and some function from another libraries that looks like this void read_something.. I'm not allowed to change the interface of read_somthing function. The first thing I can think of is write a class that inherits.. the QDataStream readBytes and writeBytes to implement its functions. Then register the streambuf into a istream with rdbuf..
Understanding the difference between f() and f(void) in C and C++ once and for all [duplicate] http://stackoverflow.com/questions/13319492/understanding-the-difference-between-f-and-fvoid-in-c-and-c-once-and-for-a opinions on this subject and just want to make sure I understand it correctly. For C Declarations void f and void f void.. void f and void f void mean precisely the same thing the function f does not take any parameters. Ditto for definitions... not take any parameters. Declaration void f means that function f may or may not have parameters and if it does we don't..
C++ implicit copy constructor for a class that contains other objects http://stackoverflow.com/questions/1810163/c-implicit-copy-constructor-for-a-class-that-contains-other-objects of basic PODS does nothing m_b The values are un initialized. m_c Calls the default constructor of Z If this.. constructor can not be generated. This is not an error unless your code tries to use the default constructor then only.. constructor can not be generated. This is not an error unless your code tries to use the copy constructor then only a..
mixing cout and printf for faster output http://stackoverflow.com/questions/1924530/mixing-cout-and-printf-for-faster-output is that yes that's okay. A lot of people have thrown around various ideas of how to improve speed but there seems to be.. #include iterator #include stdio.h static const int count 3000000 static char const const string This is a string. void.. ticks CLOCKS_PER_SEC n void use_printf for int i 0 i count i printf s n string void use_puts for int i 0 i count i puts..
When to use inline function and when not to use it? http://stackoverflow.com/questions/1932311/when-to-use-inline-function-and-when-not-to-use-it to use inline function and when not to use it I know that inline is a hint or.. is a hint or request to compiler and its used to avoid function call overheads. So on what basis one can determine whether.. overheads. So on what basis one can determine whether a function is a candidate for inlining or not In which case one should..
Create an Application without a Window http://stackoverflow.com/questions/224225/create-an-application-without-a-window How would you program a C C application that could run without opening a window or console c c winapi share improve.. not cause console windows to automatically open when it runs. But a windows program need not create any windows if it need.. to much like all those programs and services that you see running in the taskbar but do not see any corresponding windows..
How to make SIMPLE C++ Makefile? http://stackoverflow.com/questions/2481269/how-to-make-simple-c-makefile post I wrote for physics grad students. Since this is for unix the executables have no extensions. One thing to note is that.. or support.hh is newer than support.o and if so run a command like g g c D_REENTRANT pthread I sw include root support.cc.. support.hh or tool.cc are newer than tool.o and if so run a command like g g c D_REENTRANT pthread I sw include root tool.cc..
The best cross platform (portable) arbitrary precision math library http://stackoverflow.com/questions/2568446/the-best-cross-platform-portable-arbitrary-precision-math-library arithmetic calculations efficiently. Ability to handle functions like sqrt square root log logarithm that do not produce.. symbolic computations is even better. Here are what I found so far Java 's BigInteger and BigDecimal class I have been.. these so far. I have read the source code but I don't understand the math underneath. It may be based on theories algorithms..
How to learn proper C++? [closed] http://stackoverflow.com/questions/2963019/how-to-learn-proper-c I know that C and C share a common subset. What I've begun to realize though is that more times than not I wind up treating.. of #define s and I think Gracious that's horrible Very un C like only to go and mindlessly write class wrappers for the.. C libraries. I feel like my own personal C heavy background while learning C has sort of... clouded my acceptance of C..
Video Stabilization with OpenCV http://stackoverflow.com/questions/3431434/video-stabilization-with-opencv and zoom as well so the result might look a bit..uncommon or even distorted for some fast movements . Although exact.. tools use the phase correlation. If you just want to un shake the camera this might be preferable. There is quite some..
What is the bit size of long on 64-bit Windows? http://stackoverflow.com/questions/384502/what-is-the-bit-size-of-long-on-64-bit-windows bit CPU. I looked up what it was on 64 bit Windows and found Windows long and int remain 32 bit in length and special new.. 2 What should I use Should I define something like uw sw un signed width as a long if not on Windows and otherwise do a.. needed on Unix platforms. If you design your software around platform neutral integer type names probably using the C99..
Will a “variableName;” C++ statement be a no-op at all times? http://stackoverflow.com/questions/4030959/will-a-variablename-c-statement-be-a-no-op-at-all-times will be defined but not used. Here's an example a function for use with COM_INTERFACE_ENTRY_FUNC_BLIND ATL macro HRESULT.. are being compiled the compiler spawns a C4100 'iid' unreferenced formal parameter warning so in order to silence the.. something concerning observable behavior like calls to IO functions or the reading and writing of volatile variables. This..
What happens to global variables declared in a DLL? http://stackoverflow.com/questions/75701/what-happens-to-global-variables-declared-in-a-dll destructor. Will the destructor be called when the DLL is unloaded c windows dll share improve this question In a Windows.. order of construction of objects or different compilation units i.e. CPP files is not guaranteed so you can't hope the object.. in the same CPP file as inside the same compilation unit the order of instanciation of the objects will be the order..
http://stackoverflow.com/questions/760578/const-reference-to-temporary ~Base cout ~Base endl int main const Base f Base When run it displays ~Base twice ... But if I un comment the constructor.. Base f Base When run it displays ~Base twice ... But if I un comment the constructor it displays it only once Does anyone.. only when the constructor is implicitly defined. This is unexpected but permitted. C 1x will fix this . share improve this..
Forward declaration of nested types/classes in C++ http://stackoverflow.com/questions/951234/forward-declaration-of-nested-types-classes-in-c can't do it it's a hole in the C language. You'll have to un nest at least one of the nested classes. share improve this..
Memoized, recursive factorial function? http://stackoverflow.com/questions/9729212/memoized-recursive-factorial-function recursive factorial function I know how to do memoization in Python easily but I need.. so I am using C . However I have no clue how to memoize. I understand that it's about storing values into an array or vector.. way I can think of to do this in C is probably using a function object to store the memoized values. I guess this is probably..
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