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c++ Programming Glossary: realhttp://stackoverflow.com/questions/1008019/c-singleton-design-pattern Singleton design pattern Recently I've bumped into a realization implementation of the Singleton design pattern for C.. for C . It has looked like this I have adopted it from the real life example a lot of methods are omitted here class Singleton..
How come a non-const reference cannot bind to a temporary object? http://stackoverflow.com/questions/1565600/how-come-a-non-const-reference-cannot-bind-to-a-temporary-object getx returning temporary anyway If you share with us your real scenario and what you are trying to accomplish you may get some..
In what cases do I use malloc vs new? http://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-vs-new use malloc free and when I should use new delete in my real world programs. If you're a C expert please let me know any.. data. The new keyword does not have an analogous way like realloc. The realloc function might be able to extend the size of.. keyword does not have an analogous way like realloc. The realloc function might be able to extend the size of a chunk of memory..
Printing lists with commas C++ http://stackoverflow.com/questions/3496982/printing-lists-with-commas-c T charT traits operator T const item Here's the only real change from ostream_iterator Normally the ' os item ' would..
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 hear is It will stop someplace random and it will miss the real problem . This comes from having a prior concept of what the.. . This comes from having a prior concept of what the real problem is. A key property of performance problems is that they.. is natural but you can be sure if it finds a problem it is real and vice versa. ADDED Let me make a Bayesian explanation of..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c have to use dynamic allocation in the heap and what's its real advantage What are the problems of static and stack Could I.. but which isn't needed outside that code. They are also really nice for when you are accessing a resource like a file and.. not work properly. At the best of times Garbage Collectors realize that your memory goes away when it realizes that there are..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome However in order to accurately explain how buffer overruns really work it was important that I added these diagrams. Disclaimer.. and give you the address to the house. In contrast to the real world memory allocation cannot be told where to allocate but.. you overwrite important parts of the data you stored that really should not be randomly changed. For instance it might not..
What are the differences between pointer variable and reference variable in C++? http://stackoverflow.com/questions/57483/what-are-the-differences-between-pointer-variable-and-reference-variable-in-c More on stack vs heap . This implies that there is a real address of a reference that the compiler will not tell you...
“using namespace” in c++ headers http://stackoverflow.com/questions/5849457/using-namespace-in-c-headers get the namespace imported into my program maybe without realizing intending or wanting it header inclusion can be very deeply.. Also if I am right is this a common mistake I mean in real world programming and in real projects out there. Thank you... a common mistake I mean in real world programming and in real projects out there. Thank you. c namespaces header files ..
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 f . However as you might well know boost function in real life is a template so the compiler knows 14.2 3 After name lookup..
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 the room Well obviously that scenario can happen in the real world no problem. There is no mysterious force that causes your.. . We use stacks for temporary stores because they are really cheap and easy. An implementation of C is not required to..
C++: Pointer to class data member http://stackoverflow.com/questions/670734/c-pointer-to-class-data-member of a class What is the use of this strange pointer in real code c class pointers share improve this question It's..
“unpacking” a tuple to call a matching function pointer http://stackoverflow.com/questions/7858817/unpacking-a-tuple-to-call-a-matching-function-pointer std get 0 params std get 1 params std get 2 params But I really don't want to write 20 versions of dispatch so I'd rather.. a way of doing that for dispatching a function call. The real motivation for this is somewhat more complex and it's mostly..
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 bin time cat test_lines_double . readline_test_cpp 33.30 real 0.04 user 0.74 sys Saw 20000001 lines in 33 seconds. Crunch.. bin time cat test_lines_double . readline_test_cpp1b 3.79 real 0.01 user 0.50 sys Saw 20000000 lines in 4 seconds. Crunch speed.. usr bin time cat test_lines_double . readline_test.py 6.88 real 0.01 user 0.38 sys Read 20000000 lines in 6 seconds. LPS 3333333..
What XML parser should I use in C++? http://stackoverflow.com/questions/9387610/what-xml-parser-should-i-use-in-c XML Compliance OK so you need to process XML. Not toy XML real XML. You need to be able to read and write all of the XML specification.. or SAX I Need Exact DOM and or SAX Conformance OK so you really need the API to be DOM and or SAX. It can't just be a SAX.. Schema support and a plethora of other features. It has no real dependencies. It uses the Apache license. I Don't Care About..
Why not use pointers for everything in C++? http://stackoverflow.com/questions/1064325/why-not-use-pointers-for-everything-in-c data. So take the final example here with a grain of salt. Real world code is a bit trickier but it shows the general idea Of..
How to run application which requires admin rights from one that doesn't have them [closed] http://stackoverflow.com/questions/11586139/how-to-run-application-which-requires-admin-rights-from-one-that-doesnt-have-th shellexecute createprocess share improve this question Real problem from Wikipedia http en.wikipedia.org wiki User_Account_Control..
Real-time pitch detection using FFT http://stackoverflow.com/questions/1466968/real-time-pitch-detection-using-fft time pitch detection using FFT I'm trying to do real time pitch..
C++: std::string in a multi-threaded program http://stackoverflow.com/questions/1661154/c-stdstring-in-a-multi-threaded-program counting semantics deep within the vendor implementation. Real world example In my company we have a multi threaded application..
Use the right tool for the job: embedded programming http://stackoverflow.com/questions/2855884/use-the-right-tool-for-the-job-embedded-programming just this question including Poor reasons for rejecting C Real men program in C Dive in to C and survive Guidelines for using..
Is leaked memory freed up when the program exits? http://stackoverflow.com/questions/2975831/is-leaked-memory-freed-up-when-the-program-exits to note that in specialized environments such as various Real Time Operating Systems the memory may not be freed when the..
Performance of C++ vs Virtual Machine languages in high frequency finance http://stackoverflow.com/questions/3175072/performance-of-c-vs-virtual-machine-languages-in-high-frequency-finance very much NOT the caching characteristics of real data. Real data is much more localized in time and consecutive trades frequently..
How to increase thread priority in pthreads? http://stackoverflow.com/questions/3649281/how-to-increase-thread-priority-in-pthreads SCHED_IDLE for running very low priority background jobs. Real time scheduling policies SCHED_FIFO a first in first out policy..
http://stackoverflow.com/questions/379053/diamond-inheritance-c DelayPolicy Command execute inherit command to execute Real executed code can be written once for each action to execute..
Help With Configuring Vim For C++ http://stackoverflow.com/questions/4237817/help-with-configuring-vim-for-c Omni completion or Clang autocomplete or YouCompleteMe Real time syntax checking Syntastic Switching between source and..
http://stackoverflow.com/questions/4867559/naming-include-guards is replaced with an underscore. So test.h becomes TEST_H . Real life examples of this include Qt Creator which follows this..
When to use static member function? [duplicate] http://stackoverflow.com/questions/4921150/when-to-use-static-member-function Good uses of static member functions Meta programming. Real world example is template std char_traits. All member functions..
How to add code at the entry of every function? http://stackoverflow.com/questions/5081123/how-to-add-code-at-the-entry-of-every-function Pre call hook std endl f namespace void test_func std cout Real function std endl const Wrap test_func wrapped_test_func int..
Real life examples of xvalues, glvalues, and prvalues? http://stackoverflow.com/questions/6609968/real-life-examples-of-xvalues-glvalues-and-prvalues life examples of xvalues glvalues and prvalues I was wondering..
http://stackoverflow.com/questions/6635851/real-world-use-of-x-macros world use of X Macros I just learned of X Macros . What real..
Emulate “double” using 2 “float”s http://stackoverflow.com/questions/6769881/emulate-double-using-2-floats float operators on graphics hardware 7th conference on Real Numbers and Computers RNC7 http andrewthall.org papers df64_qf128.pdf..
Compare std::wstring and std::string http://stackoverflow.com/questions/7141260/compare-stdwstring-and-stdstring std wstring get_wstring const std wstring s return s Real worker std wstring get_wstring const std string s const char.. std string get_locale_string const std string s return s Real worker std string get_locale_string const std wstring s const..
Is the order of iterating through std::map known (and guaranteed by the standard)? http://stackoverflow.com/questions/7648756/is-the-order-of-iterating-through-stdmap-known-and-guaranteed-by-the-standard guaranteed to print 234 or it's implementation defined Real life reason I have a std map with int keys. In very rare situations..
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