STL iterators and the std namespace

[onion_skin]

How do I bring STL iterators into the current scope? eg.

#include <vector>
using std::vector;

int main()
{
vector<int>::iterator it;

return 0;
}
gives an error

[Corey Murtagh]

onion_skin wrote:

How do I bring STL iterators into the current scope? eg.

#include <vector>
using std::vector;

int main()
{
vector<int>::iterator it;

return 0;
}
gives an error

What error, and on what compiler? I tried the above on a few different
compilers with no errors. Comeau's online test also compiles it, albeit
with a warning that 'variable "it" is declared but never referenced'.

--
Corey Murtagh
The Electric Monk
"Quidquid latine dictum sit, altum viditur!"

[onion_skin]

On Wed, 25 Jun 2003 11:06:12 -0400, "Victor Bazarov"
<v.********@attAbi.com> wrote:

"onion_skin" <on************@travers.com> wrote...

How do I bring STL iterators into the current scope? eg.

#include <vector>
using std::vector;

int main()
{
vector<int>::iterator it;

return 0;
}
gives an error

What error? The code is legal C++ and compiles fine here.
Perhaps the compiler you're using is not good enough? If
that's so, try adding 'using namespace std;' in the scope
of the 'main' function.

Victor

MSVC6.0 gives the error:

"error C2653: 'vector<int,class std::allocator<int> >' : is not a
class or namespace name"

I don't want to use expose the entire library by using 'using
namespace std' (although that, obviously, works)

[Corey Murtagh]

onion_skin wrote:

On Wed, 25 Jun 2003 11:06:12 -0400, "Victor Bazarov"
<v.********@attAbi.com> wrote:

<snip>

What error? The code is legal C++ and compiles fine here.
Perhaps the compiler you're using is not good enough? If
that's so, try adding 'using namespace std;' in the scope
of the 'main' function.

Victor

MSVC6.0 gives the error:

"error C2653: 'vector<int,class std::allocator<int> >' : is not a
class or namespace name"

That's interesting. Worked fine on VC++ 6.0 when I tried it. Are you
sure you posted enough code to replicate the problem?

--
Corey Murtagh
The Electric Monk
"Quidquid latine dictum sit, altum viditur!"

[Victor Bazarov]

"Corey Murtagh" <em***@slingshot.co.nz.no.uce> wrote...

onion_skin wrote:

On Wed, 25 Jun 2003 11:06:12 -0400, "Victor Bazarov"
<v.********@attAbi.com> wrote: <snip>

What error? The code is legal C++ and compiles fine here.
Perhaps the compiler you're using is not good enough? If
that's so, try adding 'using namespace std;' in the scope
of the 'main' function.

Victor

MSVC6.0 gives the error:

"error C2653: 'vector<int,class std::allocator<int> >' : is not a
class or namespace name"

That's interesting. Worked fine on VC++ 6.0 when I tried it.

Are you sure? It didn't when I tried it on VC++ v6.0 sp5.
Are you
sure you posted enough code to replicate the problem?

Are you sure _you_ tried the right code?
---------------------------------------------
#include <vector>

using std::vector;

int main()
{
vector<int>::iterator it;
return 0;
}
---------------------------------------------

Victor

[Tom]

Also compiles without error or warning, using MS Compiler 7.1 (now 97% C++
compliant)

Regards,
Tom

"onion_skin" <on************@travers.com> wrote in message
news:9g********************************@4ax.com...

How do I bring STL iterators into the current scope? eg.

#include <vector>
using std::vector;

int main()
{
vector<int>::iterator it;

return 0;
}
gives an error

[Corey Murtagh]

Victor Bazarov wrote:

"Corey Murtagh" <em***@slingshot.co.nz.no.uce> wrote...

<snip>

That's interesting. Worked fine on VC++ 6.0 when I tried it.

Are you sure? It didn't when I tried it on VC++ v6.0 sp5.

Are you
sure you posted enough code to replicate the problem?

Are you sure _you_ tried the right code?

eep... ok, I messed up. Sorry. I guess all those months of typing
'std::' in front of every STL object has gone to my brain.

On the upside, I can confirm that it *does* work on the following compilers:

BCB4
Dev-C++/MinGW32 v2.95.3-6
g++ v2.95.4

Also works on Comeau's online test :)

One work-around for VC++ 6.0:

---------------
#include <vector>
#define vector std::vector

int main()
{
vector<int>::iterator it;

return 0;
}
---------------

Of course this can cause all sorts of problems, but it does appear to
work in this specific case.

--
Corey Murtagh
The Electric Monk
"Quidquid latine dictum sit, altum viditur!"

[onion_skin]

On Wed, 25 Jun 2003 11:44:53 -0400, "Victor Bazarov"
<v.********@attAbi.com> wrote:

"Corey Murtagh" <em***@slingshot.co.nz.no.uce> wrote...

onion_skin wrote:

> On Wed, 25 Jun 2003 11:06:12 -0400, "Victor Bazarov"
> <v.********@attAbi.com> wrote:

<snip>

>>
>>What error? The code is legal C++ and compiles fine here.
>>Perhaps the compiler you're using is not good enough? If
>>that's so, try adding 'using namespace std;' in the scope
>>of the 'main' function.
>>
>>Victor
>>
>
>
> MSVC6.0 gives the error:
>
> "error C2653: 'vector<int,class std::allocator<int> >' : is not a
> class or namespace name"

That's interesting. Worked fine on VC++ 6.0 when I tried it.

Are you sure? It didn't when I tried it on VC++ v6.0 sp5.

Are you
sure you posted enough code to replicate the problem?

Are you sure _you_ tried the right code?
---------------------------------------------
#include <vector>

using std::vector;

int main()
{
vector<int>::iterator it;
return 0;
}
---------------------------------------------

Victor

This is the code
-------------------------------------------
#include <vector>
using std::vector;
int main()
{
vector<int>::iterator it;

return 0;
}

-------------------------------------------

[John Harrison]

"Tom" <to*@yahoo.com> wrote in message
news:bd************@ID-133116.news.dfncis.de...

Also compiles without error or warning, using MS Compiler 7.1 (now 97% C++
compliant)

Regards,
Tom

Where do you get 7.1 from? I'm on 7.0.9466 and I reckon I'm only 96%
complaint.

john

[Gavin Deane]

Corey Murtagh <em***@slingshot.co.nz.no.uce> wrote in message news:<10***************@radsrv1.tranzpeer.net>...

Victor Bazarov wrote:

"Corey Murtagh" <em***@slingshot.co.nz.no.uce> wrote...

<snip>

That's interesting. Worked fine on VC++ 6.0 when I tried it.

Are you sure? It didn't when I tried it on VC++ v6.0 sp5.

Are you
sure you posted enough code to replicate the problem?

Are you sure _you_ tried the right code?

eep... ok, I messed up. Sorry. I guess all those months of typing
'std::' in front of every STL object has gone to my brain.

On the upside, I can confirm that it *does* work on the following compilers:

BCB4
Dev-C++/MinGW32 v2.95.3-6
g++ v2.95.4

Also works on Comeau's online test :)

One work-around for VC++ 6.0:

---------------
#include <vector>
#define vector std::vector

int main()
{
vector<int>::iterator it;

return 0;
}
---------------

Of course this can cause all sorts of problems, but it does appear to
work in this specific case.

A better (because it doesn't use a macro, buit still irritating
because it shouldn't be necessary at all) work-around for VC++ 6.0:

#include <vector>

int main()
{
std::vector<int>::iterator it;

return 0;
}

This VC++ 6.0 feature has got me into the habit of using fully
qualified names in preference to using declarations.

GJD