c++ Programming Glossary: d1

http://stackoverflow.com/questions/3254788/how-visitor-pattern-avoid-downcasting

A bare minimalistic example. Before class Base class Derived1 public Base class Derived2 public Base Some arbitrary function.. handles Base. void Handle Base obj if ...type is Derived1... Derived1 d1 static_cast Derived1 base std printf Handling.. Base. void Handle Base obj if ...type is Derived1... Derived1 d1 static_cast Derived1 base std printf Handling Derived1 n..

What is the curiously recurring template pattern (CRTP)?

http://stackoverflow.com/questions/4173254/what-is-the-curiously-recurring-template-pattern-crtp

Derived const op1 Equality Derived const op2 Derived const d1 static_cast Derived const op1 you assume this works because.. it Derived const d2 static_cast Derived const op2 return d1 d2 d2 d1 assuming derived has operator Now you can use it like.. const d2 static_cast Derived const op2 return d1 d2 d2 d1 assuming derived has operator Now you can use it like this struct..

overloading friend operator<< for template class

http://stackoverflow.com/questions/4660123/overloading-friend-operator-for-template-class

rhs private classT d int main int i1 1 int i2 2 D int d1 i1 D int d2 i2 cout my_max d1 d2 endl return 0 template class.. main int i1 1 int i2 2 D int d1 i1 D int d2 i2 cout my_max d1 d2 endl return 0 template class sclassT ostream operator ostream..

Does C++ support compile-time counters?

http://stackoverflow.com/questions/6166337/does-c-support-compile-time-counters

std cout counter_read ' n' print 8 struct counter_inc_t d1 char x counter_read counter_inc_t d2 char y counter_read ls..

Are there practical uses for dynamic-casting to void pointer?

http://stackoverflow.com/questions/8123776/are-there-practical-uses-for-dynamic-casting-to-void-pointer

void b1 dynamic_cast void b2 int main DD dd new DD D1 d1 dynamic_cast D1 dd D2 d2 dynamic_cast D2 dd std cout eq eq d1.. dynamic_cast D1 dd D2 d2 dynamic_cast D2 dd std cout eq eq d1 d2 eqdc eqdc d1 d2 n return 0 Output eq 0 eqdc 1 share improve.. dd D2 d2 dynamic_cast D2 dd std cout eq eq d1 d2 eqdc eqdc d1 d2 n return 0 Output eq 0 eqdc 1 share improve this answer..

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

loop so much slower than two loops Suppose a1 b1 c1 and d1 point to heap memory and my numerical code has the following.. loop. const int n 100000 for int j 0 j n j a1 j b1 j c1 j d1 j This loop is executed 10 000 times via another outer for loop... code to for int j 0 j n j a1 j b1 j for int j 0 j n j c1 j d1 j Compiled on MS Visual C 10.0 with full optimization and SSE2..

What are declarations and declarators and how are their types interpreted by the standard?

http://stackoverflow.com/questions/13808932/what-are-declarations-and-declarators-and-how-are-their-types-interpreted-by-the

to declarations of the form T D where D has the form D1 constant expression opt attribute specifier seq opt Our D is.. specifier seq opt Our D is indeed of that form where D1 is e 10 . Now imagine a declaration T D1 we've gotten rid of.. that form where D1 is e 10 . Now imagine a declaration T D1 we've gotten rid of the 5 . T D1 const float e 10 It's type..

Is the comma in a variable list a sequence point?

http://stackoverflow.com/questions/6414030/is-the-comma-in-a-variable-list-a-sequence-point

of declarations each with a single declarator. That is T D1 D2 ... Dn is usually equvalent to T D1 T D2 ... T Dn share..

GNU GCC (g++): Why does it generate multiple dtors?

http://stackoverflow.com/questions/6613870/gnu-gcc-g-why-does-it-generate-multiple-dtors

as well as data members and non virtual base classes. D1 is the complete object destructor . It additionally destroys.. the memory. If you have no virtual base classes D2 and D1 are identical GCC will on sufficient optimization levels actually..

Dual emission of constructor symbols

http://stackoverflow.com/questions/6921295/dual-emission-of-constructor-symbols

_ZN5ThingC1Ev leaq 32 rbp rax movq rax rdi call _ZN5ThingD1Ev leave ret .cfi_endproc So it is invoking the complete object.. object allocating constructor D0 # deleting destructor D1 # complete object destructor D2 # base object destructor Wait..

Are there practical uses for dynamic-casting to void pointer?

http://stackoverflow.com/questions/8123776/are-there-practical-uses-for-dynamic-casting-to-void-pointer

code #include iostream class B public virtual ~B class D1 public B class D2 public B class DD public D1 public D2 namespace.. ~B class D1 public B class D2 public B class DD public D1 public D2 namespace bool eq B b1 B b2 return b1 b2 bool eqdc.. void b1 dynamic_cast void b2 int main DD dd new DD D1 d1 dynamic_cast D1 dd D2 d2 dynamic_cast D2 dd std cout eq eq..