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c++ Programming Glossary: zeroWhat 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 the object. p1 is destroyed leaving a reference count of zero. The object is deleted. Reference counted pointers are very.. p1 Oops the reference count of of p1 and p2 never goes to zero The objects are never destroyed To work around this problem..
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 do the following phrases mean in C zero default and value initialization What do the following phrases.. initialization What do the following phrases mean in C zero initialization default initialization and value initialization.. constructor. In C 1998 there are 2 types of initialization zero and default In C 2003 a 3rd type of initialization value initialization..
What should main() return in C and C++? http://stackoverflow.com/questions/204476/what-should-main-return-in-c-and-c main . Abnormal termination is usually signalled by a non zero return but there is no standard for how non zero codes are interpreted... by a non zero return but there is no standard for how non zero codes are interpreted. Also as noted by others void main is..
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 a pointer returned by a new allocation of size zero Using pointers to objects whose lifetime has ended for instance..
http://stackoverflow.com/questions/402283/stdwstring-vs-stdstring four chars 110 108 195 and 169 not counting the trailing zero . I'll let you study the wchar_t code as an exercise So when..
http://stackoverflow.com/questions/4421706/operator-overloading to take any number of additional arguments including zero. Throughout the C standard library function objects are always..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers to allow quick container printing facilities that require zero coding on your part. It is not an all purpose formatting library..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome It is typical to store an address that points nowhere as a zero address. In basic terms what is a pointer A pointer is just..
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 a valid expression It compares boost function with zero int and then compares the resulting bool against f . However..
Do the parentheses after the type name make a difference with new? http://stackoverflow.com/questions/620137/do-the-parentheses-after-the-type-name-make-a-difference-with-new constructor. In C 1998 there are 2 types of initialization zero and default In C 2003 a 3rd type of initialization value initialization.. the following should occur new A indeterminate value new A zero initialize new B default construct B m is uninitialized new.. B m is uninitialized new C default construct C m is zero initialized new C default construct C m is zero initialized..
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 legal for the compiler to generate code that turns back to zero everything in the room that you just vacated. It doesn't because..
When are static C++ class members initialized? http://stackoverflow.com/questions/1421671/when-are-static-c-class-members-initialized dcl.init before any other initialization takes place. Zero initialization and initialization with a constant expression..
Is there a proper 'ownership-in-a-package' for 'handles' available? http://stackoverflow.com/questions/14878121/is-there-a-proper-ownership-in-a-package-for-handles-available So for me an example like this extracted from the Rule of Zero class module public explicit module std wstring const name handle.. upon this one Where's the proper resource handling Rule of Zero c c 11 handle raii ownership semantics share improve this..
C++ implicit copy constructor for a class that contains other objects http://stackoverflow.com/questions/1810163/c-implicit-copy-constructor-for-a-class-that-contains-other-objects depends on whether you use during initialization or not. Zero Initialization compiler generated constructor X X Y Calls the.. constructor If this is compiler generated use the `Zero Initialization version' m_a 0 Default construction of basic.. of Z If this is compiler generated use the `Zero Initialization version' Value Initialization compiler generated..
What are all the member-functions created by compiler for a class? Does that happen all the time? http://stackoverflow.com/questions/3734247/what-are-all-the-member-functions-created-by-compiler-for-a-class-does-that-hap
Zero cost exception handling vs setjmp/longjmp http://stackoverflow.com/questions/4975504/zero-cost-exception-handling-vs-setjmp-longjmp cost exception handling vs setjmp longjmp Assuming that there.. gcc exception handling g share improve this question Zero cost approach can be used only if available for the target in..
http://stackoverflow.com/questions/5854581/polymorphism-in-c a sequence of standard conversions in the following order Zero or one conversion from the following set lvalue to rvalue conversion.. to pointer conversion and function to pointer conversion. Zero or one conversion from the following set integral promotions.. pointer to member conversions and boolean conversions. Zero or one qualification conversion. Note a standard conversion..
What is dynamic intialization of object in c++? http://stackoverflow.com/questions/5945897/what-is-dynamic-intialization-of-object-in-c 8.5 before any other initialization takes place. Zero initialization and initialization with a constant expression..
http://stackoverflow.com/questions/6032638/default-variable-value share improve this question A declared variable can be Zero Initialized Value Initialized or Default Initialized . The C.. example #include iostream using namespace std static int a Zero Initialized int b Zero Initialized int main int i Undefined.. using namespace std static int a Zero Initialized int b Zero Initialized int main int i Undefined Behavior Might be Initialized..
http://stackoverflow.com/questions/6180012/array-with-size-0 is legal at least in the case of gcc 6.17 Arrays of Length Zero However I have two questions on this usage First is this considered..
Is 0 a decimal literal or an octal literal? http://stackoverflow.com/questions/6895522/is-0-a-decimal-literal-or-an-octal-literal 0 a decimal literal or an octal literal Zero is always zero so it doesn't matter. But in a recent discussion..
Thread safe lazy construction of a singleton in C++ http://stackoverflow.com/questions/6915/thread-safe-lazy-construction-of-a-singleton-in-c 8.5 before any other initialization takes place. Zero initialization and initialization with a constant expression..
http://stackoverflow.com/questions/7370154/cant-mod-zero Mod Zero Why is X 0 an invalid expression I always thought X 0 should..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops 4 double b1 a1 n double c1 b1 n double d1 c1 n #endif Zero the data to prevent any chance of denormals. memset a1 0 n sizeof..
What is stored on heap and what is stored on stack? [closed] http://stackoverflow.com/questions/8700491/what-is-stored-on-heap-and-what-is-stored-on-stack Heap Initialized data segment Initialized to Zero BSS Program Code Few points to note Data Segment.. program to show which variables get stored where int initToZero1 static float initToZero2 FILE initToZero3 all are stored in.. get stored where int initToZero1 static float initToZero2 FILE initToZero3 all are stored in initialized to zero segment..
How Switch case Statement Implemented or works internally? http://stackoverflow.com/questions/14067547/how-switch-case-statement-implemented-or-works-internally to 0 if less jmp to DEFAULT jmp to table REG data table ZERO ONE TWO end data ZERO call doZero jmp END ONE call doOne TWO.. DEFAULT jmp to table REG data table ZERO ONE TWO end data ZERO call doZero jmp END ONE call doOne TWO call doTwo jmp END DEFAULT..
Creating simple c++.net wrapper. Step-by-step http://stackoverflow.com/questions/2637571/creating-simple-c-net-wrapper-step-by-step by step I've a c project. I admit that I'm a complete ZERO in c . But still I need to write a c .net wrapper so I could..
Initializing an object to all zeroes http://stackoverflow.com/questions/2837854/initializing-an-object-to-all-zeroes with something like some_struct s ... const some_struct ZERO 0 s ZERO ... i.e. by introducing a fictive block in the middle.. like some_struct s ... const some_struct ZERO 0 s ZERO ... i.e. by introducing a fictive block in the middle of the..
http://stackoverflow.com/questions/4932781/why-is-a-pod-in-a-struct-zero-initialized-by-an-implicit-constructor-when-creati primitive type or primitive members of a structure will be ZERO initialized. Similarly for struct X int x X if you define the.. but if you define the constructor X X x it will be ZERO initialized. That applies to new as well so new int should give..
Defining static const variables of a template class http://stackoverflow.com/questions/6397330/defining-static-const-variables-of-a-template-class a vector class which has some static const variables like ZERO . Now since vector is often implemented as a template class.. of this code template const Vector2 float Vector2 float ZERO template const Vector2 float Vector2 float UNIT_X 1 0 ... and.. T unsigned int SIZE const Vector T SIZE Vector T SIZE ZERO Can that satisfy all future types If not will it make a difference..
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