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c++ Programming Glossary: sayIs 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 copy in some of the initializations I have seen people say both things. Please cite text as proof. Also add other cases..
http://stackoverflow.com/questions/1265039/using-std-namespace on using 'using' with respect to the std namespace. Some say use ' using namespace std ' other say don't but rather prefix.. std namespace. Some say use ' using namespace std ' other say don't but rather prefix std functions that are to be used with.. functions that are to be used with ' std ' whilst others say use something like this using std string using std cout using..
http://stackoverflow.com/questions/1461432/what-is-array-decaying as int numbers 5 cannot be re pointed i.e. you can't say numbers 0x5a5aff23. When you pass an array into a function either..
Do-While and if-else statements in C/C++ macros http://stackoverflow.com/questions/154136/do-while-and-if-else-statements-in-c-c-macros after your macro always means the same thing. Let's say you had something like your second macro. #define BAR X f x.. complicated body of code that needs to go in its own block say for example to declare local variables. In the most general..
What do the following phrases mean in C++: zero-, default- and value-initialization? http://stackoverflow.com/questions/1613341/what-do-the-following-phrases-mean-in-c-zero-default-and-value-initializat type of initialization value initialization was added. To say they least it's rather complex and when the different methods..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast works without ever considering dynamic_cast . Needless to say that this is much more powerful as it combines all of const_cast..
http://stackoverflow.com/questions/3106110/what-is-move-semantics assignment operator is an lvalue or an rvalue. So if you say a b the copy constructor will initialize that because the expression.. copy by leaving the scope. Nothing new here. But if you say a x y the move constructor will initialize that because the..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom other.mArray mSize mArray 3 return this And we say we're finished this now manages an array without leaks. However..
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 technique unless they've used it themselves. They will say that profilers give you this information but that is only true.. summaries in the presence of recursion. They will also say it only works on toy programs when actually it works on any.. 0.1 0.1 0.01 0.001 0.385 1 P o 2 2 0.385 The last column says that for example the probability that f 0.5 is 92 up from the..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c general we want to make sure we delete it. We could just say that the caller must delete the object once he's finished with.. let's try a different example using our File class. Let's say we want to use a file as a log. This means we want to open our..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers assume that you have already constructed a delimiter class say MyDel like so struct MyDel static const pretty_print delimiters_values..
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 it will be parsed as an expression. So the draft Standard says at 3.7 Some names denote types or templates. In general whenever.. names. A name can take different forms the draft Standard says A name is a use of an identifier 2.11 operator function id.. in the Standard a name can also include qualifiers that say what namespace or class a name should be looked up in. A value..
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 system we're done using this page of stack now. Until I say otherwise issue an exception that destroys the process if anyone..
What is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix libraries and now you want to get them to work together. Say you defined symbol a in a.cpp . Now b.cpp declared that symbol..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code given element is fetched from memory the next one is too. Say we want to take the sum over all elements in the example 2x2..
Help a C++ newbie understand his mistakes: header files and cpp files http://stackoverflow.com/questions/1686204/help-a-c-newbie-understand-his-mistakes-header-files-and-cpp-files I found some way to separate interface from implementation Say by taking just enough information from these distinct code segments..
C/C++ maximum stack size of program http://stackoverflow.com/questions/1825964/c-c-maximum-stack-size-of-program size of program I want to do DFS on a 100 X 100 array. Say elements of array represents graph nodes So assuming worst case..
Is there support in C++/STL for sorting objects by attribute? http://stackoverflow.com/questions/2202731/is-there-support-in-c-stl-for-sorting-objects-by-attribute by attribute I wonder if there is support in STL for this Say I have an class like this class Person public int getAge const..
Passing member function pointer to member object in c++ http://stackoverflow.com/questions/2374847/passing-member-function-pointer-to-member-object-in-c member function to form a pointer to member function. Say ' foo hello' cannot convert 'void foo ' to 'void ' in assignment..
http://stackoverflow.com/questions/2765462/how-to-cin-space-in-c to cin Space in c Say we have a code int main char a 10 for int i 0 i 10 i cin a..
What are all the common undefined behaviour that a C++ programmer should know about? [closed] http://stackoverflow.com/questions/367633/what-are-all-the-common-undefined-behaviour-that-a-c-programmer-should-know-ab behaviour that a C programmer should know about closed Say like a i i c undefined undefined behavior c faq share improve..
Writing a simple equation parser http://stackoverflow.com/questions/4582398/writing-a-simple-equation-parser is a string and I want to find the answer 5 3 7 2 8 9 72 Say someone wrote that in how could I deal with so many nested parenthesis..
Undefined Behavior and Sequence Points Reloaded http://stackoverflow.com/questions/4638364/undefined-behavior-and-sequence-points-reloaded question is what if the type of i is a user defined type Say it's type is Index which is defined later in this post see below..
http://stackoverflow.com/questions/4757565/c-forward-declaration exe. It's possible that the linker may get the wrong add. Say you wanted to use int add int a float b but accidentally forgot..
Sharing a global/static variable between a process and DLL http://stackoverflow.com/questions/4911994/sharing-a-global-static-variable-between-a-process-and-dll shared among other processes. Elaboration of the problem Say that there is a static global variable x in a.cpp . Both the..
Why do we have reinterpret_cast in C++ when two chained static_cast can do its job? http://stackoverflow.com/questions/5025843/why-do-we-have-reinterpret-cast-in-c-when-two-chained-static-cast-can-do-its-j in C when two chained static_cast can do its job Say I want to cast A to char and vice versa we have two choices..
Why copying stringstream is not allowed? http://stackoverflow.com/questions/6010864/why-copying-stringstream-is-not-allowed created a copy of std cin which is in fact input stream. Say the copied object is copy_cin . Now ask yourself does it make..
Can I call a base class's virtual function if I'm overriding it? http://stackoverflow.com/questions/672373/can-i-call-a-base-classs-virtual-function-if-im-overriding-it call a base class's virtual function if I'm overriding it Say I have classes Foo and Bar set up like this class Foo public..
Create WCF service for unmanaged C++ clients http://stackoverflow.com/questions/686452/create-wcf-service-for-unmanaged-c-clients public interface IHelloService OperationContract string SayHello string name public class HelloService IHelloService public.. public class HelloService IHelloService public string SayHello string name return String.Format Hello 0 name Modify.. I simply created a dialog MFC application and added a Say Hello button to it. Right click the project in the Solution..
Order of calling constructors/destructors in inheritance http://stackoverflow.com/questions/7539282/order-of-calling-constructors-destructors-in-inheritance in inheritance A little question about creating objects. Say I have these two classes struct A A cout A C tor endl ~A cout..
If I want to specialise just one method in a template, how do I do it? http://stackoverflow.com/questions/9330561/if-i-want-to-specialise-just-one-method-in-a-template-how-do-i-do-it specialise just one method in a template how do I do it Say I have a templated class like template typename T struct Node..
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