c++ Programming Glossary: ctorWhat does a colon following a C++ constructor name do? http://stackoverflow.com/questions/1272680/what-does-a-colon-following-a-c-constructor-name-do does a colon following a C constructor name do What does the colon operator do in this constructor.. name do What does the colon operator do in this constructor Is it equivalent to MyClass m_classID 1 m_userdata 0 class MyClass.. 1 m_userdata 0 int m_classID void m_userdata c constructor initialization list ctor initializer share improve this question..
http://stackoverflow.com/questions/1353973/c-template-linking-error arr I get Linkage error unresolved external symbol to the ctor. Any Idea c templates linker share improve this question..
Benefits of Initialization lists http://stackoverflow.com/questions/1598967/benefits-of-initialization-lists is no gain. The first version calls string's copy constructor and the other calls string's assignment operator there isn't.. question The second version is calling string's default ctor and then string's copy assignment operator there could definitely.. compared to the first one which directly calls c's copy ctor e.g. depending on string's implementation there might be useless..
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 members and is using a compiler generated default constructor. In C 1998 there are 2 types of initialization zero and default.. m POD struct B ~B int m non POD compiler generated default ctor struct C C m ~C int m non POD default initialising m int main..
What is this weird colon-member syntax in the constructor? http://stackoverflow.com/questions/1711990/what-is-this-weird-colon-member-syntax-in-the-constructor is this weird colon member syntax in the constructor Recently I've seen an example like the following #include iostream.. seen this syntax before. It looks like a function constructor call but for an int Makes no sense for me. Perhaps someone could.. you'll never find in a ordinary C book c syntax constructor c faq ctor initializer share improve this question It's..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets constructor with empty brackets Is there any good reason that an empty.. parentheses isn't valid for calling the default constructor in C MyObject object ok default ctor MyObject object blah ok.. the default constructor in C MyObject object ok default ctor MyObject object blah ok MyObject object error I seem to type..
Does a const reference prolong the life of a temporary? http://stackoverflow.com/questions/2784262/does-a-const-reference-prolong-the-life-of-a-temporary The answer is Instead of The answer is four c temporary ctor initializer const reference share improve this question .. The reference in your example is bound to the constructor's argument n and becomes invalid when the object n is bound.. below. A temporary bound to a reference member in a constructor 䏭 ctor initializer 12.6.2 persists until the constructor exits...
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special an array or a class clause 9 with no user declared constructors 12.1 no private or protected non static data members clause.. This does not mean an aggregate class cannot have constructors in fact it can have a default constructor and or a copy constructor.. have constructors in fact it can have a default constructor and or a copy constructor as long as they are implicitly declared..
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 Test test new Test and Test test new Test c constructor initialization new operator c faq share improve this question.. members and is using a compiler generated default constructor. In C 1998 there are 2 types of initialization zero and default.. m POD struct B ~B int m non POD compiler generated default ctor struct C C m ~C int m non POD default initialising m In a C..
How does std::forward work? [duplicate] http://stackoverflow.com/questions/8526598/how-does-stdforward-work now an example invocation int main some_struct int s1 5 in ctor '5' is rvalue int so 'U' is deduced as 'int' giving 'int ' ctor.. '5' is rvalue int so 'U' is deduced as 'int' giving 'int ' ctor after deduction 'some_struct int v ' 'U' 'int' with rvalue reference.. are lvalues huzzah we forwarded an rvalue to the constructor of '_v' attention real magic happens here int i 5 some_struct..
“Undefined reference to” template class constructor http://stackoverflow.com/questions/8752837/undefined-reference-to-template-class-constructor Undefined reference to&rdquo template class constructor I have no idea why this is happenning since I think I have.. T a nodo_colaypila T siguiente NULL elem a sig siguiente ctor Afterwards the definition and declaration of the queue template.. std template class T cola T cola pri NULL ult NULL ctor template class T void cola T anade T valor nodo_colaypila T..
http://stackoverflow.com/questions/1092714/conversion-precedence-in-c the following code Some functions A A int i_a cout int Ctor n conversion constructor void h double d cout double param n.. std class B class A public explicit A const B cout Ctor through B n A cout Default Ctor n A int i_a cout int Ctor n.. explicit A const B cout Ctor through B n A cout Default Ctor n A int i_a cout int Ctor n operator int cout A int n return..
http://stackoverflow.com/questions/12600330/pop-back-return-value ... try const AnyClass result holds.pop_back The copy Ctor throw here catch ... Last value lost here. share improve this..
Ctor Initializer: self initialization causes crash? http://stackoverflow.com/questions/3892098/ctor-initializer-self-initialization-causes-crash Initializer self initialization causes crash I had a hard time..
Is there a use for making a protected destructor virtual? http://stackoverflow.com/questions/8970466/is-there-a-use-for-making-a-protected-destructor-virtual called n endl class Child public Parent public Child Ctor cout nChild constructor called n endl ~Child dtor cout nChild..
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