I can't get STL pair to work

[razael1]

#include <utility>
#include <vector>

using namespace std;

vector< pair<int,int> > v;

Generates an error: ISO C++ forbids declaration of 'vector' with no
type

I'm using MinGW/Dev-C++ compiler. The file "utility" includes
"bits/stl_pair.h", which contains the class pair in the std namespace.
What's wrong?

Thanks,
CK

 

[Pete Becker]

#include <utility>
#include <vector>

using namespace std;

vector< pair<int,int> > v;

Generates an error: ISO C++ forbids declaration of 'vector' with no
type

I'm using MinGW/Dev-C++ compiler. The file "utility" includes
"bits/stl_pair.h", which contains the class pair in the std namespace.
What's wrong?

No idea. You'll have to do some experimenting. It's not obvious from the
error message that the problem is pair. So try a few things:

pair<int, int> p;
vector<int> v;

If either of those fails, you've narrowed down the problem.

--

-- Pete

Author of "The Standard C++ Library Extensions: a Tutorial and
Reference." For more information about this book, see
www.petebecker.com/tr1book.

 

[Ian Collins]

#include <utility>
#include <vector>

using namespace std;

vector< pair<int,int> > v;

Generates an error: ISO C++ forbids declaration of 'vector' with no
type

I'm using MinGW/Dev-C++ compiler. The file "utility" includes
"bits/stl_pair.h", which contains the class pair in the std namespace.
What's wrong?

Nothing obvious.

Try instantiating a vector<int> and a pair<int,int> and see which barfs.