cout.put(65) error. why?

[wenjiahe]

VC consloe
cout.put(65)//65 is the ASCII code of 'A'
error C2668: 'put' : ambiguous call to overloaded function
why?

[Philip Nicoletti]

Are you using

#include <iostream.h>

if so, that is non-standard ... use the standard

#include <iostream>

[wenjiahe]

Originally posted by Philip Nicoletti
Are you using

#include <iostream.h>

if so, that is non-standard ... use the standard

#include <iostream>

thanks much! but when i use
#include <iostream>
cout became an undeclared identifier!
error C2065: 'cout' : undeclared identifier

[Philip Nicoletti]

the stream functions reside in namespace std,
so you need something like this:

#include <iostream>

using namespace std;  // add this line

int main()
{
    cout.put(65);

    return 0;
}

or you can qualify cout as follows :

#include <iostream>

int main()
{

    std::cout.put(65);

    return 0;
}

If you do a search on Andreas Masur posts, he has a
good exaplanation on namespaces

[Philip Nicoletti]

here is a link on namsespace

http://www.codeguru.com/forum/showth...ight=namespace

[wenjiahe]

thanks again! you have help me resolve the problem throughly
btw:
West Virginia an beautiful place I have known from
<take me home country roads > of John denver