namespaces,

[vsgdp]

Hi,

Can you put a "using namespace" inside a class like this:

// c.h

#include <string>

class C
{
public:
using namespace std;

string myString;
};

I don't want to put it outside the class because then any .cpp file
that includes this header file will also get the using namespace std.
I just want to use using namespace std in my code, but not force
client code to use it.

 

[Victor Bazarov]

Can you put a "using namespace" inside a class like this:

// c.h

#include <string>

class C
{
public:
using namespace std;

string myString;
};

No. Expressly prohibited.

I don't want to put it outside the class because then any .cpp file
that includes this header file will also get the using namespace std.
I just want to use using namespace std in my code, but not force
client code to use it.

You'd be better off actually spelling 'std::' in the class definition,
but you're free to have a using directive in the source file where the
implementation of your class members live.

V

 

[Ian Collins]

Hi,

Can you put a "using namespace" inside a class like this:

// c.h

#include <string>

class C
{
public:
using namespace std;

string myString;
};

I don't want to put it outside the class because then any .cpp file
that includes this header file will also get the using namespace std.
I just want to use using namespace std in my code, but not force
client code to use it.

As Victor said, this is expressly prohibited. If you really want to,
you can write something like:

#include <string>

class C
{
public:
typedef std::string String;

String myString;
};