Getting a "scope" error in C++

Question

I am getting the error "Error: 'cout' was not declared in this scope," but I included <iostream>, which was the solution that was given for similar problems in my research. My code is this:

#include <iostream>
int main(){

    Sally so;
    Cout << "omg wtf is this on my shoe" << endl;
}

Answer 1

1. Its cout not Cout, notice the case difference.
2. cout is in the namespace std. In order to use it you need to resolve the namespace with std::, so use std::cout << ....
3. As much as people will tell you to just do using namespace std, dont. For more info, see Why is “using namespace std” considered bad practice?.

Answer 2

1. You are writing "Cout" not "cout" - C++ is case sensitive, so those two are not the same thing.

2. You should write std::cout since the cout stream lives in the std namespace.

3. The same goes for endl which should be std::endl.

You could avoid writing std:: by using using namespace std; but I wouldn't advice it - it pulls all of the namespace into the current scope which may not hurt for a trivial program will bite for a more complex one (at the very least, don't do it in headers).

Just do this:

#include <iostream>
int main(){
    Sally so;
    std::cout << "omg wtf is this on my shoe" << std::endl;
}

Btw; unless you know you want to flush the stream, prefer '\n' over std::endl.

Answer 3

Change your code to this:

#include<iostream>
using namespace std;
int main()
{
    Sally so;
    cout<<"the text"<<endl;
}    

Hope it helps!! Cheers