File IO

[wtd]

Ah, I left out one thing. Rather than the assignment style of construction, you should use the initialization style, as shown in the following modification of the previous code.

A recap:

c++:

class name {    private:       std::string first;       std::string last;    public:       name(std::string f, std::string l)       {          first = f;          last = l;       }       std::string full_name() const       {          return first + " " + last;       } }; int main() {    const name bob("Bob", "Smith");        std::cout << bob.full_name() << std::endl;    return 0; }

Now, remember how I said things should be constant unless otherwise required? Well, let's say that our name should have constant first and last names. It cannot be changed, under any circumstances.

c++:

class name {    private:       const std::string first;       const std::string last;    public:       name(std::string f, std::string l)       {          first = f;          last = l;       }       std::string full_name() const       {          return first + " " + last;       } }; int main() {    const name bob("Bob", "Smith");        std::cout << bob.full_name() << std::endl;    return 0; }

Now, when we call the constructor those two strings get initialized by default to empty strings. Since they're constant, we can't assign to them after initialization, so this fails. Instead we directly initialize them.

c++:

class name {    private:       const std::string first;       const std::string last;    public:       name(std::string f, std::string l) : first(f), last(l) { }       std::string full_name() const       {          return first + " " + last;       } }; int main() {    const name bob("Bob", "Smith");        std::cout << bob.full_name() << std::endl;    return 0; }

[MysticVegeta]

Wow, i wonder if you type at 1000WPM or you already have tuts typed out (which i smarter thing i guess) Or if you are like a super nerd who breathes programming (no offense)

Anyways, Really good job man 9 examples. whew
Thanks a lot