how to initialize the object in constructor in c++
BigMommaClass {
BigMommaClass(int, int);
private:
ThingOne thingOne;
ThingTwo thingTwo;
};
BigMommaClass::BigMommaClass(int numba1, int numba2): thingOne(numba1 + numba2), thingTwo(numba1, numba2) {
// Code here
}cpp class constructor
class MyClass { // The class
public: // Access specifier
MyClass() { // Constructor
cout << "Hello World!";
}
};constructor c++ struct
struct Rectangle {
int width; // member variable
int height; // member variable
// C++ constructors
Rectangle()
{
width = 1;
height = 1;
}
Rectangle( int width_ )
{
width = width_;
height = width_ ;
}
Rectangle( int width_ , int height_ )
{
width = width_;
height = height_;
}
// ...
};constructor syntax in c++
struct S {
int n;
S(int); // constructor declaration
S() : n(7) {} // constructor definition.
// ": n(7)" is the initializer list
// ": n(7) {}" is the function body
};
S::S(int x) : n{x} {} // constructor definition. ": n{x}" is the initializer list
int main()
{
S s; // calls S::S()
S s2(10); // calls S::S(int)
}Copyright © 2021 Codeinu
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