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c++ Programming Glossary: usefulWhat is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one has to explicitly destroy the object when it is no longer useful. Need to create the object to achieve some goal MyObject ptr.. it around to other functions you call. Scoped pointers are useful when you want to tie the lifetime of the object to a particular.. The object is deleted. Reference counted pointers are very useful when the lifetime of your object is much more complicated and..
Is gcc4.7 buggy about regular expressions? [duplicate] http://stackoverflow.com/questions/12530406/is-gcc4-7-buggy-about-regular-expressions This was a Good Thing TM . The regex code was never in a useful state but was added as a work in progress like many other bits..
Variable length arrays in C++? http://stackoverflow.com/questions/1887097/variable-length-arrays-in-c n Declare a variable length array This seems like a pretty useful feature does anyone now if there was ever a discussion on adding..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new new If so what for It looks to me like it would only be useful on memory mapped hardware. c memory management new operator.. constructs an object on a pre allocated buffer. This is useful when building a memory pool a garbage collector or simply when..
How to stop C++ console application from exiting immediately? http://stackoverflow.com/questions/2529617/how-to-stop-c-console-application-from-exiting-immediately I'll leave this here and maybe someone else will find it useful. I've used it a lot as a quick hack of sorts when writing tests..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom which is discussed later. On a general note a remarkably useful guideline is as follows if you're going to make a copy of something..
When should static_cast, dynamic_cast and reinterpret_cast be used? http://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-and-reinterpret-cast-be-used that wasn't declared with const it is safe. This can be useful when overloading member functions based on const for instance...
http://stackoverflow.com/questions/356950/c-functors-and-their-uses as to what they are and in what cases they would be useful c functor function call operator share improve this question..
http://stackoverflow.com/questions/3582001/advantages-of-using-forward This gives so called universal references . Why is this useful Because combined we maintain the ability to keep track of the..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new any practical examples as to how this initialisation is useful I remember reading something maybe in Code Complete 2 that it..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c . When you would want to use each one Statics globals are useful for memory that you know you will always need and you know that.. of preset sizes for all allocations. Stack variables are useful for when you know that as long as the function is in scope on.. code. Heap allocations dynamically allocated memory is useful when you want to be more flexible than the above. Frequently..
Pass by Reference / Value in C++ http://stackoverflow.com/questions/410593/pass-by-reference-value-in-c sample Object o 1 o i void sample Object const o 2 nothing useful here void sample Object o 3 o.i void sample1 Object o 4 o.i..
When to use virtual destructors? http://stackoverflow.com/questions/461203/when-to-use-virtual-destructors share improve this question Virtual destructors are useful when you can delete an instance of a derived class through a..
http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c to the first element of an array whenever it is deemed useful that is whenever an operation would fail on an array but succeed..
What is a lambda expression in C++11? http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11 their introduction A few examples and use cases would be useful. c lambda c 11 c faq share improve this question The problem.. faq share improve this question The problem C includes useful generic functions like std for_each and std transform which..
Where do I find the current C or C++ standard documents? http://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents to ISO 9899 1990 Note that the C90 standard is much more useful than the significantly different C99 standard since C99 hasn't..
How to speed up series generation? http://stackoverflow.com/questions/11381277/how-to-speed-up-series-generation 2 sqrt 3.0 1 n 1.0 Naive approach it works but very slow. Useful for testing. ull count_fair_coins ull n if n 1 return 1 else..
What memory address spaces are there? http://stackoverflow.com/questions/14091855/what-memory-address-spaces-are-there given the wide variety of machines to be supported. Useful information may include Examples of computer architectures with..
Python/C++ Binding Library comparison http://stackoverflow.com/questions/1492755/python-c-binding-library-comparison Distributed as part of the Boost library which is huge. Useful but huge Compiling the library initially can be an exercise..
How to check crash log using android ndk in cocos2d-x http://stackoverflow.com/questions/18436383/how-to-check-crash-log-using-android-ndk-in-cocos2d-x to get line no from stack trace in android ndk How to get Useful crashlog information Android Cocos2dx C android c android ndk..
Where to delete QTcpSocket in thread to avoid valgrind errors http://stackoverflow.com/questions/19280903/where-to-delete-qtcpsocket-in-thread-to-avoid-valgrind-errors Deletes a given QObject when its thread is destroyed. Useful when a thread logically owns its objects. This logical ownership..
Reduce flicker with GDI+ and C++ http://stackoverflow.com/questions/197948/reduce-flicker-with-gdi-and-c from being filled with the window's background color. Useful when you will be drawing the entire area again during WM_PAINT..
How do you reverse a string in place in C or C++? http://stackoverflow.com/questions/198199/how-do-you-reverse-a-string-in-place-in-c-or-c is borked this will cheerfully swap outside the place. Useful link when vandalising in the UNICODE http www.macchiato.com..
http://stackoverflow.com/questions/300592/enum-in-c-like-enum-in-ada Wikipedia Judah Himango 2008 11 19 at 0 09 See Wikibooks Useful features of Ada enumerations The first value in the enumeration..
Help With Configuring Vim For C++ http://stackoverflow.com/questions/4237817/help-with-configuring-vim-for-c subcommands mentioned above Refactoring tool Refactor Useful text objects Arg text object and Class text object C category..
Beyond Stack Sampling: C++ Profilers http://stackoverflow.com/questions/4394606/beyond-stack-sampling-c-profilers tool so this is sort of a last resort. Sleepy VerySleepy Useful for smaller apps but failing me here. EasyProfiler Not bad if..
The copy constructor and assignment operator http://stackoverflow.com/questions/5368258/the-copy-constructor-and-assignment-operator and re initialized if it has internal dynamic memory. Useful link Copy Constructors Assignment Operators and More Copy constructor..
What other useful casts can be used in C++ http://stackoverflow.com/questions/862858/what-other-useful-casts-can-be-used-in-c It only succeeds if the types can be implicitly converted. Useful for conversion from some type into void or from some derived..
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