[Dev-C++] constructors

I performed a test with classes and while I was debugging I didn't 
understand a result...

class Test
{

public:

Test()
{
}

Test(...)
{
}

};

class Test2
{

public:
Test2()
{
   t = ...
}

Test t;
};

When I created an object of type Test2 it jumped to the constrctor like it 
should have but than it called the constructor twice. Once with the default 
constructor before entering the body and again when doing the line t=.... 
Why did it do that? I didn't create another object of type Test. I wanted to 
give t a certain value when constructing Test2. What happened?

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