What is wrong with this declaration ?

[Susan Baker]

Hi,

I want to declare a variable of type (Vector of pairs) - Ok, I know this
can be done using a map, but I want to keep things simple for now.

I have declared the variable as ff in this code snippet:
#pragma once
#include <string>
#include <utility>
#include <map>

using namespace std;

vector<pair <int, int>> linePairs ; // <- compiler cringes here

Compiler err messages are as ff:

syntax error : missing ';' before '<'
'Script::vector ' : missing storage-class or type specifiers
expecting '>' to terminate template-argument-list, found '>>'
unexpected token(s) preceding ';'

Any pointers (no pun intended !) would be much appreciated.

[Mathias Waack]

Susan Baker wrote:

vector<pair <int, int>> linePairs ; // <- compiler cringes here

^--- insert a space just here
vector<pair <int, int> > linePairs;
Mathias

[Susan Baker]

This is a "fuller" snippet of code:

#pragma once

#include <string>
#include <utility>
#include <map>

using namespace std;

class Script
{
private:
string name ;
string source_code ;
vector< pair <int, int> linePairs; // <- compiler dosen't like this

.........

Susan Baker wrote:

Hi,

I want to declare a variable of type (Vector of pairs) - Ok, I know this
can be done using a map, but I want to keep things simple for now.

I have declared the variable as ff in this code snippet:
#pragma once
#include <string>
#include <utility>
#include <map>

using namespace std;

vector<pair <int, int>> linePairs ; // <- compiler cringes here

Compiler err messages are as ff:

syntax error : missing ';' before '<'
'Script::vector ' : missing storage-class or type specifiers
expecting '>' to terminate template-argument-list, found '>>'
unexpected token(s) preceding ';'

Any pointers (no pun intended !) would be much appreciated.

[titancipher]

The issue is that '>>' is an operator. You need to add a space:
vector<pair <int, int> > linePairs ;
You also need to include <vector>

[Susan Baker]

Hi Mathias,

Thanks for the tip - unfortunately, I tried it and still no joy...

Mathias Waack wrote:

Susan Baker wrote:

vector<pair <int, int>> linePairs ; // <- compiler cringes here

^--- insert a space just here
vector<pair <int, int> > linePairs;
Mathias

[Torsten Mueller]

Susan Baker <sb****@no.spam .net> schrieb:

vector<pair <int, int>> linePairs ; // <- compiler cringes here

use

vector<pair <int,int> > linePairs;
^
this space is relevant

T.M.

[benben]

Looks like Mathias didn't point to the exact position. Just break your >>
into >[space]> where [space] means what you get when you hit the space bar.

ben

"Susan Baker" <sb****@no.spam .net> wrote in message
news:da******** **@nwrdmz01.dmz .ncs.ea.ibs-infra.bt.com...

Hi Mathias,

Thanks for the tip - unfortunately, I tried it and still no joy...

Mathias Waack wrote:

Susan Baker wrote:

vector<pair <int, int>> linePairs ; // <- compiler cringes here

^--- insert a space just here
vector<pair <int, int> > linePairs;
Mathias

[Susan Baker]

Nope, still not compiling ... (thanks anyway)

Torsten Mueller wrote:

Susan Baker <sb****@no.spam .net> schrieb:

vector<pair <int, int>> linePairs ; // <- compiler cringes here

use

vector<pair <int,int> > linePairs;
^
this space is relevant

T.M.

[Alf P. Steinbach]

* Susan Baker:

[top-posting]
Please don't top-post in this group, see the FAQ, corrected.
* Susan Baker:

#pragma once
#include <string>
#include <utility>
#include <map>
Needs to #include <vector> here.

using namespace std;

vector<pair <int, int>> linePairs ; // <- compiler cringes here

^ Needs an extra space here.

This is a "fuller" snippet of code:

#pragma once

#include <string>
#include <utility>
#include <map>
Needs to #include <vector> here.

using namespace std;

class Script
{
private:
string name ;
string source_code ;
vector< pair <int, int> linePairs; // <- compiler dosen't like this

^ Needs a right angle bracket '>' here.

Btw., if this is a header file then it's not a good idea to have
'using namespace std;' there. If it's an implementation file then
it's OK. Reason: you don't want to force all the names in the std
namespace on clients of the header file.

Also, be aware that '#pragma once' is a non-standard language extension,
although a very common one.

In standard C++ you'd use a header file guard, like

#ifndef SCRIPT_H
#define SCRIPT_H
// ... Contents of header file [script.h] here.
#endif

and many/most compilers recognize this pattern so that they can optimize
their file handling (subsequently they'll avoid opening this file).

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

[Simon]

Nope, still not compiling ... (thanks anyway)

Torsten Mueller wrote:

All the posts that are trying to point where you should have a space assume
your newsreader settings are the same as theirs.
Almost all of them are pointing at the wrong place, yet they all mean the
same.

vector<pair <int, int>> linePairs ; // Your code
vector<pair <int, int> > linePairs ; // Note the space after ...int> > ...

Because >>, (no space), means something else so you must add the space so
the compiler doesn't get confused.

Simon