static member function ISSUE

This is a discussion on static member function ISSUE within the C++ Programming forums, part of the General Programming Boards category; Code: #include <iostream> using namespace std; class test { public: static string justAFunction(); private: }myTest; string test::justAFunction() { return string("I'm ...

  1. #1
    Registered User
    Join Date
    Jul 2010
    Posts
    56

    static member function ISSUE

    Code:
    #include <iostream>
    
    using namespace std;
    
    class test
    {
    
        public:
            static string justAFunction();
        private:
    
    }myTest;
    
    string test::justAFunction()
    {
    
        return string("I'm just testing...");
    
    }
    
    int main()
    {
        cout<<test.justAFunction();
    }
    Why couldn't I make this static function work? Arent static member functions made so i can call them withtout making an object of that class?

  2. #2
    Registered User
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    Oct 2006
    Posts
    2,832
    Quote Originally Posted by dhuan View Post
    Code:
    #include <iostream>
    
    using namespace std;
    
    class test
    {
    
        public:
            static string justAFunction();
        private:
    
    }myTest;
    
    string test::justAFunction()
    {
    
        return string("I'm just testing...");
    
    }
    
    int main()
    {
        cout<<test.justAFunction();
    }
    Why couldn't I make this static function work? Arent static member functions made so i can call them withtout making an object of that class?
    you are correct, but you cannot use the dot operator. you must use the :: operator instead, so in your case it would be
    Code:
    cout << test::justAFunction();

  3. #3
    C++ Witch laserlight's Avatar
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    Incidentally, if you are basically just using the class name as a namespace, then you might as well just use a namespace.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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