[I see there have been some other replies to this message in the interim;
probably by now somebody else has hit on the same solution.]
With the help of an ingenious friend (thank you, Theo!), I was able to find
out how to make the constructor calls that I wanted. It's kind of an
odd-looking construct, and since no one here knew about it, I guess it's not
something that's commonly done in C++.
On the off-chance that it'll be useful to someone else, here's the code:
// From file Sphere.h
class Sphere
{
public:
Sphere(void);
Sphere(int x, int y, int z);
Sphere(int x, int y, int z, int r);
~Sphere(void);
System::String *ToString();
private:
int CenterX;
int CenterY;
int CenterZ;
int Radius;
};
// From file Sphere.cpp
Sphere::Sphere(void)
{
this->CenterX = 0;
this->CenterY = 0;
this->CenterZ = 0;
this->Radius = 0;
}
Sphere::Sphere(int x, int y, int z)
{
//Sphere(); // Wrong! Just makes and destroys temp object
this->Sphere::Sphere(); // Right! Initializes all members.
this->CenterX = x;
this->CenterY = y;
this->CenterZ = z;
}
Sphere::Sphere(int x, int y, int z, int r)
{
//Sphere(x, y, z); // Wrong! Just makes and destroys temp object
this->Sphere::Sphere(x, y, z); // Right! Initializes all members.
this->Radius = r;
}
Sphere::~Sphere(void)
{
}
String *Sphere::ToString()
{
String *sReturn = S"";
sReturn = String::Format(S"Sphere is centered at [X={0}, Y={1}, Z={2}]",
CenterX.ToString(), CenterY.ToString(), CenterZ.ToString());
sReturn = String::Concat(sReturn,
String::Format(S"\nSphere has a radius of {0}", Radius.ToString()));
return sReturn;
}
// From file ConstructorTest.cpp
int _tmain()
{
Sphere *sphere1 = new Sphere();
Sphere *sphere2 = new Sphere(10, 100, 1000);
Sphere *sphere3 = new Sphere(5, 50, 500, 5000);
Console::WriteLine(S"Sphere1: {0}", sphere1->ToString());
Console::WriteLine(S"Sphere2: {0}", sphere2->ToString());
Console::WriteLine(S"Sphere3: {0}", sphere3->ToString());
return 0;
}
With the incorrect constructor calls (commented out in the code above), the
result of executing ConstructorTest.exe is:
Sphere1: Sphere is centered at [X=0, Y=0, Z=0]
Sphere has a radius of 0
Sphere2: Sphere is centered at [X=10, Y=100, Z=1000]
Sphere has a radius of -842150451
Sphere3: Sphere is centered at [X=-842150451, Y=-842150451, Z=-842150451]
Sphere has a radius of 5000
But with the correct ones, the result is:
Sphere1: Sphere is centered at [X=0, Y=0, Z=0]
Sphere has a radius of 0
Sphere2: Sphere is centered at [X=10, Y=100, Z=1000]
Sphere has a radius of 0
Sphere3: Sphere is centered at [X=5, Y=50, Z=500]
Sphere has a radius of 5000
