string header not working, wha????

[gabeman]

using MS Visual Studio 6.0. I checked to see if the file 'string' exists, and indeed it does. It is also specified in the right folder in my include options. I cant seem to initialize anything with the string or basic_string classes. here's my code:

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

int main()
{
string mystring;
return 0;
}

debug:
C:\Documents and Settings\Gabe\Desktop\Learning C++\sdjfhwe\dfg.cpp(8) : error C2065: 'string' : undeclared identifier
C:\Documents and Settings\Gabe\Desktop\Learning C++\sdjfhwe\dfg.cpp(8) : error C2146: syntax error : missing ';' before identifier 'mystring'
C:\Documents and Settings\Gabe\Desktop\Learning C++\sdjfhwe\dfg.cpp(8) : error C2065: 'mystring' : undeclared identifier

 

[Salem]

Use

std::string mystring

Plus, you're mixing old and new style headers
#include <string> // this is new, which uses namespaces
#include <iostream.h> // this is old, which doesn't use namespaces

--

 

[Zech]

Alternatively, if you don't want to use std::string, you can always declare using namespace std;...

#include <iostream>
#include <string>

using namespace std;

void main()
{
  String mystring; [green]//no need for std here[/green]
}

 

[Cagliostro]

use string instead of String. They are case sensitive. Also don't mix different types of STL libraries (with .h extension and without extension). Because of mixing them you could came compilation(good if only compilation) and runtime problems very difficult to find. Use STL only withould extension. In VisualStudio 2003 STL with .h extensions are not suported anymore. To not expose the whole namespace (in big projects it is dangerous) you can expose only what you need:

#include <iostream>
#include <string>

using std::string;//exposing only string

void main()
{
string mystring; //no need for std here
}

Ion Filipski

 

[Zech]

Ack! yea ... Good eyes there, IonFilipski!

It should be [red]string[/red] instead of [red]String[/red].