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c++ Programming Glossary: f2http://stackoverflow.com/questions/105014/does-the-mutable-keyword-have-any-purpose-other-than-allowing-the-variable-to aren't by default int x 0 auto f1 mutable x 42 OK auto f2 x 42 Error a by value capture cannot be modified in a non mutable..
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 int i Baz baz class Baz int j Now if I do this Foo f1 Foo f2 f1 What will the default copy constructor do Will the compiler.. constructor share improve this question Foo f1 Foo f2 f1 Yes this will do what you expect it to The f2 copy constructor.. f1 Foo f2 f1 Yes this will do what you expect it to The f2 copy constructor Foo Foo Foo const is called. This copy constructs..
Pass by Reference / Value in C++ http://stackoverflow.com/questions/410593/pass-by-reference-value-in-c is pass by value void f1 Object const o f1 Object 1 void f2 int const i f2 42 2 void f3 Object o f3 Object 3 Object o1 f3.. void f1 Object const o f1 Object 1 void f2 int const i f2 42 2 void f3 Object o f3 Object 3 Object o1 f3 o1 4 void f4.. void f1 Object op Object a Object op1 a f1 op1 1 void f2 Object const op Object b f2 b 2 struct A struct B operator A..
Pretty-print C++ STL containers http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers to generate some values struct fibonacci fibonacci f1 0 f2 1 int operator int r f1 f2 f1 f2 f2 r return f1 private int.. fibonacci fibonacci f1 0 f2 1 int operator int r f1 f2 f1 f2 f2 r return f1 private int f1 int f2 int main std vector.. fibonacci fibonacci f1 0 f2 1 int operator int r f1 f2 f1 f2 f2 r return f1 private int f1 int f2 int main std vector int..
What does T&& (double ampersand) mean in C++11? http://stackoverflow.com/questions/5481539/what-does-t-double-ampersand-mean-in-c11 following code both invoke the move constructor for f1 and f2 foo f1 foo Move a temporary into f1 temporary becomes empty.. foo Move a temporary into f1 temporary becomes empty foo f2 std move f1 Move f1 into f2 f1 is now empty Perfect forwarding.. f1 temporary becomes empty foo f2 std move f1 Move f1 into f2 f1 is now empty Perfect forwarding . rvalue references allow..
When to use forward declaration? http://stackoverflow.com/questions/553682/when-to-use-forward-declaration methods which accept return incomplete types void f1 X X f2 Define functions or methods which accept return pointers references.. or methods using this type void f1 X x compiler error X f2 compiler error Use its methods or fields in fact trying to dereference..
What is “rvalue reference for *this”? http://stackoverflow.com/questions/8610571/what-is-rvalue-reference-for-this test will only match lvalues linked to 'void test f ' void f2 test will only match rvalues linked to 'void test f ' Then the.. can match 'test ' lvalue reference kept in overload set f2 t 't' not an rvalue can't match 'test ' rvalue reference taken.. match 'test ' lvalue reference taken out of overload set f2 test 'test ' rvalue can match 'test ' rvalue reference kept..
Lambda functions as base classes http://stackoverflow.com/questions/18432260/lambda-functions-as-base-classes this is no longer true I can access the operator from F2 too. #include iostream I compiled with g GCC 4.7.2 20121109.. cout Functor2 operator int n template typename F1 typename F2 struct Overload public F1 public F2 Overload F1 F2 Overload.. typename F1 typename F2 struct Overload public F1 public F2 Overload F1 F2 Overload F1 x1 F2 x2 F1 x1 F2 x2 using F1 operator..
http://stackoverflow.com/questions/3519282/why-is-this-ambiguity-here to be a better function than another viable function F2 if for all arguments i ICSi F1 is not a worse conversion sequence.. i ICSi F1 is not a worse conversion sequence than ICSi F2 and then ... for some argument j ICSj F1 is a better conversion.. j ICSj F1 is a better conversion sequence than ICSj F2 or if not that ... For our first assumption we don't get an..
http://stackoverflow.com/questions/6115204/question-on-boostswap to be a better function than another viable function F2 if for all arguments i ICS i F1 is not a worse conversion sequence.. i ICS i F1 is not a worse conversion sequence than ICS i F2 and then for some argument j ICS j F1 is a better conversion.. j ICS j F1 is a better conversion sequence than ICS j F2 or if not that F1 is a non template function and F2 is a function..
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