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c++ Programming Glossary: patternhttp://stackoverflow.com/questions/1008019/c-singleton-design-pattern Singleton design pattern Recently I've bumped into a realization implementation of the.. into a realization implementation of the Singleton design pattern for C . It has looked like this I have adopted it from the real.. is how do I implement it in the right way c design patterns singleton share improve this question See this article..
Why is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array you guess the same... In other words you try to identify a pattern and follow it. This is more or less how branch predictors work... faced with unpredictable branches with no recognizable patterns branch predictors are virtually useless. Further Reading Branch_predictor..
http://stackoverflow.com/questions/11269766/no-matches-with-c11-regex regex using namespace std int main string line test regex pattern test regex_constants grep smatch result bool ret false ret regex_search.. smatch result bool ret false ret regex_search line result pattern cout boolalpha ret endl cout result.size endl return 0 output..
Inline functions vs Preprocessor macros http://stackoverflow.com/questions/1137575/inline-functions-vs-preprocessor-macros this question Preprocessor macros are just substitution patterns applied to your code. They can be used almost anywhere in your.. input expressions are copied wherever they appear in the pattern. Inline function are not always guaranteed to be inlined some..
Variable number of arguments in C++? http://stackoverflow.com/questions/1657883/variable-number-of-arguments-in-c using overloading or inheritance polymorphism builder pattern as in operator in streams or default arguments etc. These are..
Is it okay to inherit implementation from STL containers, rather than delegate? http://stackoverflow.com/questions/2034916/is-it-okay-to-inherit-implementation-from-stl-containers-rather-than-delegate on the container. This seems to be a reoccurring pattern for me in my designs class MyContainer public std vector MyObject..
Examples of good gotos in C or C++ http://stackoverflow.com/questions/245742/examples-of-good-gotos-in-c-or-c cut it. I'll accept the first answer which gave the C pattern for branching to a cleanup block. IMO this makes the strongest..
Can we increase the re-usability of this key-oriented access-protection pattern? http://stackoverflow.com/questions/3324898/can-we-increase-the-re-usability-of-this-key-oriented-access-protection-pattern the re usability of this key oriented access protection pattern Can we increase the re usability for this key oriented access.. the re usability for this key oriented access protection pattern class SomeKey friend class Foo more friends... SomeKey possibly.. have access To avoid continued misunderstandings this pattern is different from the Attorney Client idiom It can be more concise..
Finding C++ static initialization order problems http://stackoverflow.com/questions/335369/finding-c-static-initialization-order-problems threads. Please note DO NOT use the double checked locking pattern to try an optimize away the locking. This will not work in C..
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 that the OS will sometimes initialise memory with certain patterns such as 0xCD and 0xDD. What I want to know is when and why.. Complete 2 that it is good to initialise memory to a known pattern when allocating it and certain patterns will trigger interrupts.. memory to a known pattern when allocating it and certain patterns will trigger interrupts in Win32 which will result in exceptions..
What C++ Smart Pointer Implementations are available? http://stackoverflow.com/questions/5026197/what-c-smart-pointer-implementations-are-available objects in Qt. QWeakPointer Do you sense a reoccurring pattern Just as std weak_ptr and boost weak_ptr this is used in conjunction..
http://stackoverflow.com/questions/5854581/polymorphism-in-c varied at runtime such as for a state machine pattern. When there's not a clear driver for run time polymorphism compile..
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 and in particular lifetimes of storages follow a nesting pattern. That is the allocation of the longest lived of the short lived.. that come after it. Local variables follow the latter pattern when a method is entered its local variables come alive. When..
Is it safe to use -1 to set all bits to true? http://stackoverflow.com/questions/809227/is-it-safe-to-use-1-to-set-all-bits-to-true it safe to use 1 to set all bits to true I've seen this pattern used a lot in C C . unsigned int flags 1 all bits are true Is.. this one unsigned long a ~0u It won't necessarily store a pattern with all bits 1 into a . But it will first create a pattern.. with all bits 1 into a . But it will first create a pattern with all bits 1 in an unsigned int and then assign it to a ...
http://stackoverflow.com/questions/1096700/instantiate-class-from-name is a problem which is commonly solved using the Registry Pattern This is the situation that the Registry Pattern describes Objects.. Registry Pattern This is the situation that the Registry Pattern describes Objects need to contact another object knowing only.. it to be done at compile time. ATL uses the Registry Pattern for CoClasses which can be created at runtime by name the registration..
Problems with Singleton Pattern http://stackoverflow.com/questions/1392315/problems-with-singleton-pattern with Singleton Pattern I've been reading about Singleton pattern for last few days...
Practical Uses for the “Curiously Recurring Template Pattern” http://stackoverflow.com/questions/149336/practical-uses-for-the-curiously-recurring-template-pattern Uses for the &ldquo Curiously Recurring Template Pattern&rdquo What are some practical uses for the Curiously Recurring.. some practical uses for the Curiously Recurring Template Pattern The counted class example commonly shown just isn't a convincing..
http://stackoverflow.com/questions/15322058/is-there-a-use-case-for-stdfunction-that-is-not-covered-by-function-pointers
What C++ idioms should C++ programmers use? [closed] http://stackoverflow.com/questions/1759613/what-c-idioms-should-c-programmers-use
Pattern name for create in constructor, delete in destructor (C++) http://stackoverflow.com/questions/1846144/pattern-name-for-create-in-constructor-delete-in-destructor-c name for create in constructor delete in destructor C Traditionally..
How to make SIMPLE C++ Makefile? http://stackoverflow.com/questions/2481269/how-to-make-simple-c-makefile the compilation rule for both source files Implicit and Pattern Rules We would generally expect that all c source files should.. rules are built in and a few will be discussed below. Pattern rules are specified in a form like .o .c CC CFLAGS CPPFLAGS..
http://stackoverflow.com/questions/2496918/singleton-pattern-in-c nobody's stupid enough to call delete on it 4. The Monoid Pattern Since we are talking about Singleton I think it's time to introduce.. about Singleton I think it's time to introduce the Monoid Pattern. In essence it can be seen as a degenerated case of the Flyweight..
How might I wrap the FindXFile-style APIs to the STL-style Iterator Pattern in C++? http://stackoverflow.com/questions/2531874/how-might-i-wrap-the-findxfile-style-apis-to-the-stl-style-iterator-pattern-in-c I wrap the FindXFile style APIs to the STL style Iterator Pattern in C I'm working on wrapping up the ugly innards of the FindFirstFile..
Dynamically register constructor methods in an AbstractFactory at compile time using C++ templates http://stackoverflow.com/questions/2850213/dynamically-register-constructor-methods-in-an-abstractfactory-at-compile-time-u a class like this is the Curiously Recurring Template Pattern CRTP class PingMessage public MessageTmpl 10 PingMessage Your..
How Visitor Pattern avoid downcasting http://stackoverflow.com/questions/3254788/how-visitor-pattern-avoid-downcasting Visitor Pattern avoid downcasting can anyone show example code before and after..
C++ - passing references to boost::shared_ptr http://stackoverflow.com/questions/327573/c-passing-references-to-boostshared-ptr
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used And the argument still rages. I see Singletons as a Design Pattern good and bad . The problem with Singleton is not the Pattern.. good and bad . The problem with Singleton is not the Pattern but rather the users sorry everybody . Everybody and their father.. they can implement a correct Singleton they abuse the Pattern and use it in situations that are not appropriate replacing..
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