Thread: cout<< and getline() in class definition

  1. #1
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    cout<< and getline() in class definition

    Code:
    #include <iostream>
    #include<cstdlib>
    
    
    using namespace std;
    
    
    class ObPass {
    private:
       char name[40] = "Javaid Iqbal"; 
       int n = 33;                      
       char ch = 'A';
    public:
       	cout << name << n << ch;  
    	getline(cin, name);    	
            void disp(){
       	cout << name << "\n" <<n << "\n" << ch << endl;
    };
    int main() {
    	ObPass object;
      	object.disp();
      	system("pause"); 
       	return 0;
    	}
    Why we can't use cout << name << n << ch; and getline(cin, name); in class definition?

  2. #2
    and the hat of int overfl Salem's Avatar
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    Maybe post something which compiles.

    You can't just write random lines of code inside the class. It has to be in a function.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  3. #3
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    Quote Originally Posted by Salem View Post
    Maybe post something which compiles.

    You can't just write random lines of code inside the class. It has to be in a function.
    Code:
    void disp3(){                                      
          
    	  cout << "Enter Name: " << endl;  
          getline(cin,name);
    	  cout << "Enter Integer: " << endl;  
    	  cin >> n; 
          cout<<"Enter Character: "<<endl;
    	  cin >> ch;    
    	  cout << name << n  << ch << endl;
    	  cout <<"=======================================" << endl;
        }
    I'm trying getline() function, in the member function definition, but inside member function it is still giving error. cin is not able to enter multi words string and if getline() too is not working, then how to enter multi words sting inside the member function?

  4. #4
    C++ Witch laserlight's Avatar
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    What's the error message?
    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

  5. #5
    and the hat of int overfl Salem's Avatar
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    There are two kinds of getline.

    getline (string) - C++ Reference
    This one operates exclusively on strings.

    istream::getline - C++ Reference
    This one works with char pointers.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  6. #6
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    Quote Originally Posted by laserlight View Post
    What's the error message?
    Error is as following,

    In member function 'void ObPass::disp3()':
    [ERROR] no matching function for call to 'getline(std::istream&, char[40])'

  7. #7
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    Well, I've gotten the answer

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