Reference to class is ambiguous??

[macboy49]

I keep getting 2 errors in my cpp file for the first line:
Expected a class or namespace

Reference to 'hash' is ambiguous


Please help.....

//hash.h file
#ifndef __HashTable__hash__
#define __HashTable__hash__

#include <stdio.h>
#include <iostream>
#include <string>

using namespace std;


class hash{

public:
    int Hash(string value);
    
};

#endif /* defined(__HashTable__hash__) */





//hash.cpp file
#include "hash.h"




int hash::Hash(string key)
{
    
}

[cire]

I would suggest getting rid of line 10 and making appropriate changes elsewhere.

[macboy49]

Wow thanks that worked. But why does it do that would you know?

[Zhuge]

using namespace std; takes the contents of that namespace and dumps it all into global scope. If you ever try to use a name that happened to be in there, it'll clash. That's why it's good practice to not use such a broad directive, especially in headers when people who use that code might not want the std namespace filling the global one.

[macboy49]

awww makes sense. Thanks for the clarification.