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c++ Programming Glossary: certainIn C++ source, what is the effect of extern “C”? http://stackoverflow.com/questions/1041866/in-c-source-what-is-the-effect-of-extern-c to group a sequence of declarations definitions to have a certain linkage extern C void foo int extern C void g char int i If..
Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati to do the same these two forms are remarkably different in certain cases. The two forms of initialization are direct and copy initialization..
What are copy elision and return value optimization? http://stackoverflow.com/questions/12953127/what-are-copy-elision-and-return-value-optimization compilers to prevent extra potentially expensive copies in certain situations. It makes returning by value or pass by value feasible..
Why does an overridden function in the derived class hide other overloads of the base class? http://stackoverflow.com/questions/1628768/why-does-an-overridden-function-in-the-derived-class-hide-other-overloads-of-the i.e. why it actually was designed into C is to avoid certain counterintuitive unforeseen and potentially dangerous behavior..
http://stackoverflow.com/questions/162941/why-use-pointers too long char array to another variable that only got a certain limited space allocated. You would most likely end up writing..
Most effective way for float and double comparison http://stackoverflow.com/questions/17333/most-effective-way-for-float-and-double-comparison in doubles here we use doubles to hold int values in certain cases your arithmetic will be correct. For example 4.0 2.0 will..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new want to be sure there can be no allocation failure at a certain part of critical code maybe you work on a pacemaker for example..
Is it possible to write a C++ template to check for a function's existence? http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence write a C template that changes behavior depending on if a certain member function is defined on a class Here's a simple example.. with SFINAE you can check if a given class does provide a certain method. Here's the working code #include iostream struct Hello..
C++ Timer function to provide time in nano seconds http://stackoverflow.com/questions/275004/c-timer-function-to-provide-time-in-nano-seconds there is some controversy on the efficacy of QPC under certain circumstances as stated in http msdn.microsoft.com en us library..
What are rvalues, lvalues, xvalues, glvalues, and prvalues? http://stackoverflow.com/questions/3601602/what-are-rvalues-lvalues-xvalues-glvalues-and-prvalues may be moved for example . An xvalue is the result of certain kinds of expressions involving rvalue references. Example 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 I know that the OS will sometimes initialise memory with certain patterns such as 0xCD and 0xDD. What I want to know is when.. memory to a known pattern when allocating it and certain patterns will trigger interrupts in Win32 which will result..
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 are different. Suppose we assume P f 0.1 is .991 nearly certain and all the other possibilities are almost impossible 0.001.. are almost impossible 0.001 . In other words our prior certainty is that I is cheap. Then we get Prior P f x x P o 2 2 f..
How can I add reflection to a C++ application? http://stackoverflow.com/questions/41453/how-can-i-add-reflection-to-a-c-application for a functions existence#264088 . For checking whether a certain nested type exists use plain SFINAE . If you are rather looking..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points C Standard What are Sequence Points The Standard says At certain specified points in the execution sequence called sequence points..
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 is in the typedef Tail inUnion U dummy line. I'm fairly certain that inUnion is a dependent name and VC is quite right in choking.. entry. In order to parse a C program you need to know for certain names whether they name types or non types. The following should.. it by typename to tell the compiler to parse it in a certain way. The Standard says at 14.6 2 A name used in a template declaration..
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 one stack per thread and the stack is allocated to be a certain fixed size. When you call a method stuff is pushed onto the.. of rules and it is very easy to break them accidentally. I certainly have many times. And worse the problem often only surfaces..
Naming convention for fields and accessors in C++ http://stackoverflow.com/questions/1421694/naming-convention-for-fields-and-accessors-in-c to the implementation according to C standard 17.4.3.1.2 1 Certain sets of names and function signatures are always reserved to..
Strange VC++ compile error, C2244 http://stackoverflow.com/questions/1484885/strange-vc-compile-error-c2244 wrong here I found that microsoft released a hotfix Certain template code does not compile and error C2244 occurs after..
How can I find out how much memory my c++ app is using on the Mac http://stackoverflow.com/questions/1543157/how-can-i-find-out-how-much-memory-my-c-app-is-using-on-the-mac I find out how much memory my c app is using on the Mac Certain operations in my app are using more memory than I think they..
What exactly is the “as-if” rule? http://stackoverflow.com/questions/15718262/what-exactly-is-the-as-if-rule This is made explicit in Paragraph 1.9 4 as well Certain other operations are described in this International Standard..
How do I stop windows from blocking the program during a window drag or menu button being held down? http://stackoverflow.com/questions/18041622/how-do-i-stop-windows-from-blocking-the-program-during-a-window-drag-or-menu-but Applications Special Cases Modal Event Processing Loops Certain window operations on Windows are modal operations. Modal is..
What are the rules about using an underscore in a C++ identifier? http://stackoverflow.com/questions/228783/what-are-the-rules-about-using-an-underscore-in-a-c-identifier 2003 C Standard 17.4.3.2.1 Global names lib.global.names Certain sets of names and function signatures are always reserved to..
Undefined, unspecified and implementation-defined behavior http://stackoverflow.com/questions/2397984/undefined-unspecified-and-implementation-defined-behavior define a parameterized nondeterministic abstract machine. Certain aspects and operations of the abstract machine are described.. its characteristics and behavior in these respects. Certain other aspects and operations of the abstract machine are described.. the nondeterministic aspects of the abstract machine. Certain other operations are described in this International Standard..
Effective optimization strategies on modern C++ compilers http://stackoverflow.com/questions/2932515/effective-optimization-strategies-on-modern-c-compilers hurt you. Another option is to use specialized allocators. Certain containers e.g. map set list rely on lots of pointer manipulation...
http://stackoverflow.com/questions/3525177/program-portability provides quite a restricted programming environment Certain things are not portable in standard C such as drawing graphics..
Advantages of using initializer list? [duplicate] http://stackoverflow.com/questions/4289899/advantages-of-using-initializer-list initializer list over putting these in the constructor. Certain things have to use the initialize list but for the majority..
http://stackoverflow.com/questions/4364536/c-null-reference a reference cannot be bound directly to a bit field. 1.9 4 Certain other operations are described in this International Standard..
Compilers and argument order of evaluation in C++ http://stackoverflow.com/questions/621542/compilers-and-argument-order-of-evaluation-in-c but it should be similar to that from my n2798 draft C Certain other aspects and operations of the abstract machine are described..
Conversion function for error checking considered good? http://stackoverflow.com/questions/6242296/conversion-function-for-error-checking-considered-good formed for some invented temporary variable t § 8.5 . Certain language constructs require that an expression be converted..
Is the safe-bool idiom obsolete in C++11? http://stackoverflow.com/questions/6242768/is-the-safe-bool-idiom-obsolete-in-c11 well formed for some invented temporary variable t §8.5 . Certain language constructs require that an expression be converted..
What breaking changes are introduced in C++11? http://stackoverflow.com/questions/6399615/what-breaking-changes-are-introduced-in-c11 decltype noexcept nullptr static_assert and thread_local Certain integer literals larger than can be represented by long could..
How to Check if the function exists in C/C++ http://stackoverflow.com/questions/8814705/how-to-check-if-the-function-exists-in-c-c to Check if the function exists in C C Certain situations in my code i end up invoking the function only if..
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