Error Definition Of Implicitly-declared Copy Constructor
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Definition Of Implicitly Declared Default Constructor
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Definition Of Implicitly Declared Copy Assignment Operator
million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Can anyone help me understand this error? “definition of implicitly-declared ‘classA::classA()’” up vote 20 down vote favorite 1 Heres the error definition of implicitly declared destructor code: #include
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Error Definition Of Implicitly-declared 'virtual
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Copy Constructor C++
Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a http://stackoverflow.com/questions/5765780/can-anyone-help-me-understand-this-error-definition-of-implicitly-declared-cl minute: Sign up c++ compiling error related to constructor/destructor definition up vote 16 down vote favorite 4 I'm trying to define the constructor and destructor of my class but I keep getting the error: definition of implicitly-declared 'x::x()' What does it mean? Part of the code: ///Constructor StackInt::StackInt(){ t = (-1); stackArray = new int[20]; }; ///Destructor StackInt::~StackInt(){ delete[] stackArray; } c++ http://stackoverflow.com/questions/708008/c-compiling-error-related-to-constructor-destructor-definition constructor destructor share|improve this question edited Mar 1 '13 at 15:48 Drew Noakes 127k73394489 asked Apr 2 '09 at 1:53 caesar 1 Post your code ! –Uri Apr 2 '09 at 1:54 How are your files structured (*.h, *.cpp)? Which file is that posted code in? –paxdiablo Apr 2 '09 at 2:02 add a comment| 2 Answers 2 active oldest votes up vote 40 down vote In the class declaration (probably in a header file) you need to have something that looks like: class StackInt { public: StackInt(); ~StackInt(); } To let the compiler know you don't want the default compiler-generated versions (since you're providing them). There will probably be more to the declaration than that, but you'll need at least those - and this will get you started. You can see this by using the very simple: class X { public: X(); // <- remove this. }; X::X() {}; int main (void) { X x ; return 0; } Compile that and it works. Then remove the line with the comment marker and compile again. You'll see your problems
library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular http://en.cppreference.com/w/cpp/language/as_operator expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11) Filesystem library (C++17) Technical Specifications [edit] C++ language Classes General overview class/struct types union types Members data members static members the this pointer nested classes member templates bit fields using-declarations member functions member access specifiers definition of constructors and member initializer lists default member initializer(C++11) friend specifier explicit specifier converting constructor Special member functions default constructor copy constructor move constructor(C++11) copy assignment operator move assignment operator(C++11) destructor Inheritance base and derived classes virtual member functions override(C++11) final(C++11) pure virtual functions and abstract classes [edit] definition of implicit A copy assignment operator of class T is a non-template non-static member function with the name operator= that takes exactly one parameter of type T, T&, const T&, volatile T&, or const volatile T&. For a type to be CopyAssignable, it must have a public copy assignment operator. Contents 1 Syntax 2 Explanation 3 Implicitly-declared copy assignment operator 4 Deleted implicitly-declared copy assignment operator 5 Trivial copy assignment operator 6 Implicitly-defined copy assignment operator 7 Notes 8 Copy-and-swap idiom 9 Example 10 Defect reports [edit] Syntax class_name & class_name :: operator= ( class_name ) (1) class_name & class_name :: operator= ( const class_name & ) (2) class_name & class_name :: operator= ( const class_name & ) = default; (3) (since C++11) class_name & class_name :: operator= ( const class_name & ) = delete; (4) (since C++11) [edit] Exp