I have a few classes with a few named constructors. When I inherit from them, how should I inherit the constructors? The problem is that they return objects of base class and not of the child class.
Side question: can I use C++0x "using" to reduce the amount of boilerplate code?
...
Hi,
I'm trying to create a named constructor for my class Matrix, with an input as a stream from which I can read the values for the initialization.
#include <istream>
// ...
class Matrix
{
public:
Matrix(int);
// some methods
static Matrix *newFromStream(istream&);
private:
int n;
std::valarray< Cell > data;
};
...
Are there named constructors in Scala?
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take following class and two object definitions:
class Rect{
public:
enum centimeter;
enum meter;
Rect(double len,double wid,enum centimeter){
length=(len/100);
width=(wid/100);
}
Rect(int len,int wid,enum meter){
length=len;
width=wid;
}
//rest of implementation
private:
double length;//in meters
double ...