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c++ Programming Glossary: letVisual Studio support for new C / C++ standards? http://stackoverflow.com/questions/146381/visual-studio-support-for-new-c-c-standards are other C99 features that you ™d find useful in your work let us know We don ™t hear much from our C users so speak up and..
In what cases do I use malloc vs new? http://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-vs-new and when you use the new operator you should pair with delete and it is a mistake to mix the two e.g. Calling free on something.. when I should use malloc free and when I should use new delete in my real world programs. If you're a C expert please let.. in my real world programs. If you're a C expert please let me know any rules of thumb or conventions you follow in this..
Static linking vs dynamic linking http://stackoverflow.com/questions/1993390/static-linking-vs-dynamic-linking have as Mark notes enormous resources and you can probably let the convenience issues drive you thinking on this matter. To..
Get the IP address of the machine http://stackoverflow.com/questions/212528/get-the-ip-address-of-the-machine so should be similiar to linux . However getifaddress will let you do the same thing easily it works fine for me on os x 10.5..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom both are the basis of any wrapper so should be complete anyway and a swap function. A swap function is a non throwing.. other.mArray mSize mArray destructor ~dumb_array delete mArray private std size_t mSize int mArray This class almost.. other if this other 1 get rid of the old data... delete mArray 2 mArray 0 2 see footnote for rationale ...and put in..
Why does C++ not have reflection? http://stackoverflow.com/questions/359237/why-does-c-not-have-reflection instantiation creates a new type. std vector int is a completely separate class from std vector float . That adds up to a.. which makes the type just big enough that it won't get completely inlined so it'll be back again. That's still useful for debug.. I believe disallowing it on templates would make it completely useless. You'd be unable to use reflection on the standard..
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring 110 108 195 and 169 not counting the trailing zero . I'll let you study the wchar_t code as an exercise So when working with..
What is the proper declaration of main? http://stackoverflow.com/questions/4207134/what-is-the-proper-declaration-of-main to explicitly write a return statement in main if you let main return without an explicit return statement it's the same..
When to use virtual destructors? http://stackoverflow.com/questions/461203/when-to-use-virtual-destructors question Virtual destructors are useful when you can delete an instance of a derived class through a pointer to base class.. that I didn't declare Base's destructor to be virtual. Now let's have a look at the following snippet Base b new Derived use.. a look at the following snippet Base b new Derived use b delete b Here's the problem Since Base's destructor is not virtual..
What C++ Smart Pointer Implementations are available? http://stackoverflow.com/questions/5026197/what-c-smart-pointer-implementations-are-available facilities. The first downside being that it calls delete upon destruction making them unacceptable for holding array.. shared pointer goes out of scope then the object will be deleted appropriately. These are also thread safe and can handle incomplete.. These are also thread safe and can handle incomplete types in most cases. std make_shared can be used to efficiently..
How do you serialize an object in C++? http://stackoverflow.com/questions/523872/how-do-you-serialize-an-object-in-c in an analogous manner. There are also mechanisms which let you handle serialization of pointers complex data structures..
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation p 0 q 0 all side effects of the sub expression p 0 are completed before any attempt to access q. Between the evaluation of.. point means that all of their side effects are complete before the function is entered. In the expression f i g j h.. Behaviour is tightly coupled with Sequence Points . Now let us take another example int x 10 y 1 z 2 Line 4 int result x..
“using namespace” in c++ headers http://stackoverflow.com/questions/5849457/using-namespace-in-c-headers only those that are needed for the header definitions and let the .cpp file #include the rest or none and declare everything..
How does the compilation, linking process work? http://stackoverflow.com/questions/6264249/how-does-the-compilation-linking-process-work long as the source code is well formed. Compilers usually let you stop compilation at this point. This is very useful because..
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 with a room number higher than you has checked out. So let's think about the stack. In many operating systems you get one.. it is slow and unnecessary. Instead implementations let you make mistakes and get away with it. Most of the time. Until..
Create WCF service for unmanaged C++ clients http://stackoverflow.com/questions/686452/create-wcf-service-for-unmanaged-c-clients
http://stackoverflow.com/questions/712639/understanding-the-meaning-of-the-term-and-the-concept-raii-resource-acquisiti a garbage collector you could use for some objects while letting others be managed Thanks. c garbage collection raii resource.. generated copy operations. FileHandle const FileHandle delete FileHandle operator const FileHandle delete The following operations.. FileHandle delete FileHandle operator const FileHandle delete The following operations enable transfer of ownership and require..
How should I detect unnecessary #include files in a large C++ project? http://stackoverflow.com/questions/74326/how-should-i-detect-unnecessary-include-files-in-a-large-c-project included. You can also take a look at the pimpl idiom to let you get away with fewer header file dependencies to make it..
Why aren't pointers initialized with NULL by default? http://stackoverflow.com/questions/1910832/why-arent-pointers-initialized-with-null-by-default compiler initializes them. The developer initializes them. Let us assume that the compiler initialized any variable not explicitly..
Why does C# not provide the C++ style 'friend' keyword? http://stackoverflow.com/questions/203616/why-does-c-sharp-not-provide-the-c-style-friend-keyword internal classes and their use you should be fine. EDIT Let me clarify how the friend keyword undermines OOP. Private and..
In C++, what is a virtual base class? http://stackoverflow.com/questions/21558/in-c-what-is-a-virtual-base-class to know what a virtual base class is and what it means. Let me show an example class Foo public void DoSomething ... class..
http://stackoverflow.com/questions/3623082/flattening-iterator I said at the beginning I haven't tested this thoroughly. Let me know if you find any bugs and I'll be happy to correct them...
What are some of the “best” cross-platform C++ UI toolkits today? http://stackoverflow.com/questions/366043/what-are-some-of-the-best-cross-platform-c-ui-toolkits-today What are some of the best options to achieve this EDIT Let me throw in another one that I just remembered JUCE. Free for..
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 if it finds a problem it is real and vice versa. ADDED Let me make a Bayesian explanation of how it works. Suppose there..
http://stackoverflow.com/questions/379172/to-use-goto-or-not http www.research.att.com ~bs bs_faq2.html#finally EDIT Let me clear this up a little bit. Consider the following code void..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three should understand what copying an object actually means. Let us consider a simple example class person std string name int.. into the constructor and released in the destructor. Let us go back in time to pre standard C . There was no such thing..
Does std::list::remove method call destructor of each removed element? http://stackoverflow.com/questions/4260464/does-stdlistremove-method-call-destructor-of-each-removed-element raw pointer is always a no op. It cannot be any other way Let me give you several reasons why. Storage class Deleting a pointer..
How to implement the factory pattern in C++ correctly http://stackoverflow.com/questions/5120768/how-to-implement-the-factory-pattern-in-c-correctly of class X to anywhere else than the constructor . Let me skim through some possible answers which I have thought of...
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation do without the other when talking about expressions. Let us take a simple example int a 1 Line 1 a a a Line 2 printf..
http://stackoverflow.com/questions/712639/understanding-the-meaning-of-the-term-and-the-concept-raii-resource-acquisiti my local variables will be destroyed whenever I return . Let us start with an overly simplistic FileHandle class employing..
How should I write ISO C++ Standard conformant custom new and delete operators? http://stackoverflow.com/questions/7194127/how-should-i-write-iso-c-standard-conformant-custom-new-and-delete-operators of these operators have to obey in §3.7.3 and §18.4.1 Let us summarize the requirements. Requirement #1 It should dynamically..
Difference between private, public, and protected inheritance in C++ http://stackoverflow.com/questions/860339/difference-between-private-public-and-protected-inheritance-in-c accessors that I'm aware of public protected and private. Let class Base public int publicMember private int privateMember.. happens with public private and protected inheritance. Let's consider a class Base and a class Child that inherits from..
Difference between association, aggregation and composition http://stackoverflow.com/questions/885937/difference-between-association-aggregation-and-composition all object have their own lifecycle and there is no owner. Let ™s take an example of Teacher and Student. Multiple students.. and child object can not belongs to another parent object. Let ™s take an example of Department and teacher. A single teacher.. object deletes all child object will also be deleted. Let ™s take again an example of relationship between House and rooms...
Image scaling (KeepAspectRatioByExpanding) through OpenGL http://stackoverflow.com/questions/9011108/image-scaling-keepaspectratiobyexpanding-through-opengl scaling in OpenGL using only glTexCoord2f and glVertex2f . Let me explain after loading a QImage and sending it to the gpu..
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