CS202
6- ‹#›
Copy Constructors
//name.h interface
class name {
public:
name(char* = ""); //default constructor
name(const
name &); //copy constructor
~name(); //destructor
name &operator=(name &);
//assignment op
private:
char* ptr;
//pointer to name
int length; //length of name including nul
char
};
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#include
"name.h" //name.c implementation
name::name(char*
name_ptr) { //constructor
length = strlen(name_ptr); //get name length
ptr = new char[length+1]; //dynamically allocate
strcpy(ptr, name_ptr); //copy name into new space
}
name::name(const name
&obj) { //copy constructor
length = obj.length; //get length
ptr = new char[length+1]; //dynamically allocate
strcpy(ptr, obj.ptr); //copy name into new space
}
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