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c++ Programming Glossary: b1Is there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati my_test A a1 A_factory_func A a2 A_factory_func double b1 0.5 double b2 0.5 A c1 A c2 A A c3 A In each grouping are these.. then the first one will fail. Read 8.5 14 . double b1 0.5 double b2 0.5 This is doing the same because it's a built.. direct A operator B std cout copy return B int main A a B b1 a 1 B b2 a 2 output direct copy How does it work and why does..
http://stackoverflow.com/questions/2253168/dynamic-cast-in-c void f struct B public A struct C void f A a B b A ap b B b1 dynamic_cast B a NULL because 'a' is not a 'B' B b2 dynamic_cast..
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 constructor. Unable to value initialize a2 1 and a2 2 B b1 3 B OK b1 1 and b1 2 are value initialized in this case with.. Unable to value initialize a2 1 and a2 2 B b1 3 B OK b1 1 and b1 2 are value initialized in this case with the default.. to value initialize a2 1 and a2 2 B b1 3 B OK b1 1 and b1 2 are value initialized in this case with the default ctor int..
How do I pass a unique_ptr argument to a constructor or a function? http://stackoverflow.com/questions/8114276/how-do-i-pass-a-unique-ptr-argument-to-a-constructor-or-a-function do I need to use std move in the calling code Base UPtr b1 Base UPtr b2 new Base b1 setNext b2 should I write b1 setNext.. in the calling code Base UPtr b1 Base UPtr b2 new Base b1 setNext b2 should I write b1 setNext std move b2 instead c.. UPtr b1 Base UPtr b2 new Base b1 setNext b2 should I write b1 setNext std move b2 instead c arguments c 11 unique ptr share..
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 is one loop so much slower than two loops Suppose a1 b1 c1 and d1 point to heap memory and my numerical code has the.. core 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.. speed it up I changed the 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..
how to sum a large number of float number? http://stackoverflow.com/questions/2148149/how-to-sum-a-large-number-of-float-number to most positive order N log N add each pair in turn B1 A1 B2 B2 A1 A2 B3 A3 A4 this produces a new list B half the..
Legality of using operator delete on a pointer obtained from placement new http://stackoverflow.com/questions/4418220/legality-of-using-operator-delete-on-a-pointer-obtained-from-placement-new delete void . For example struct A virtual ~A struct B1 virtual A struct B2 virtual A struct B3 virtual A struct D virtual.. A struct B2 virtual A struct B3 virtual A struct D virtual B1 virtual B2 virtual B3 struct E virtual B3 virtual D int main..
Understanding the vtable entries http://stackoverflow.com/questions/5712808/understanding-the-vtable-entries the vtable entries For this code class B1 public virtual void f1 class D public B1 public void f1 int.. this code class B1 public virtual void f1 class D public B1 public void f1 int main B1 b1 new B1 D d new D return 0 After.. virtual void f1 class D public B1 public void f1 int main B1 b1 new B1 D d new D return 0 After compilation the vtable I..
How C++ virtual inheritance is implemented in compilers? http://stackoverflow.com/questions/7360752/how-c-virtual-inheritance-is-implemented-in-compilers constructors one with a call to A 1 another one without. B1 B2 no A When B is constructed the full version is called B1.. B2 no A When B is constructed the full version is called B1 A 1 B body When C is constructed the base version is called..
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