small C++ things to remember
C++ like any other language has small stuff to remember.
since i dont have a good memory, i will keep here short C++ things to remember
since i dont have a good memory, i will keep here short C++ things to remember
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Problems
here I will put different little exercices I find. 6th grade problem: find all integral numbers which after substraction to 9999 give the same number without the last digit. for example: abcde - 9999 = abcd damn, it must be easy
the size of an empty class or structure is not zero. it is one.
ReplyDeletehttp://tinf2.vub.ac.be/~dvermeir/c++/emptyopt.html
The base class from which each class is derived is declared before the declaration of the derived class. It is not sufficient to provide a forward-referencing declaration for a base class; it must be a complete declaration.
ReplyDeletefor example:
class A; // forward declaration
// compile error; A must be defined
class B : public A
{
};
class A
{
};