[Last Call] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

C++ compiling error:C2872 ambiguous symbol

Posted on 2003-12-11
9
Medium Priority
?
1,159 Views
Last Modified: 2010-04-01
When I'm using :
#include <iostream.h>
#include<fsteam.h>
#include<string>
using namespace std;

I'm getting this error:
error C2872: 'ostream' : ambiguous symbol

How can I solve it???

0
Comment
Question by:reemYaz
8 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 500 total points
ID: 9925344
>>How can I solve it???

Don't mix STL headers with non-standard headers:

#include <iostream>
#include<fsteam>
#include<string>
using namespace std;


0
 
LVL 9

Expert Comment

by:tinchos
ID: 9925352
Hi reemYaz,

Try replacing the includes with the standard ones (without the .h)

#include <iostream>
#include<fstream>
#include<string>
using namespace std;

Cheers!

Tincho
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 9926132
Also, <fstream> is mis-splelt as <fsteam>. You forgot to put an 'r' there.

Mayank.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 30

Expert Comment

by:Mayank S
ID: 9926140
Oh, Tinchos has put it right. By the way, do you need to include <iostream> if <fstream> is already included?
0
 
LVL 9

Expert Comment

by:tinchos
ID: 9927785
I'm not sure as code was not posted......

I just corrected the posted code........ lets hope that works for reemYaz

Tincho
0
 
LVL 11

Expert Comment

by:cup
ID: 9933603
iostream.h is for the old standard (V2), iostream is for the new standard (V3, STL).  Most systems have iostream.h and fstream.h for backward compatibility, and, as mentioned earlier, you shouldn't mix the two.
0
 

Expert Comment

by:MAYURNATH
ID: 9971266
#include <string> - is using the std namespace

#include <iostream.h> is not in namespace.

namespace concept is to avoid this type of problems.

if u write a function in on library , and another library also contains the same fucntion then u go for specifying a particualr libarary to a namespace.

u want to use <string> ostream then go like std::ostream and declare ur variable
u want to use <iostream.h> ostream then go like ostream and declare ur variable

In the above situation u have to avoid using namespace std;

the sample code is as follows :
#include <iostream.h>
#include <fstream.h>
#include <string>

int main(int argc, char* argv[])
{
      std::ostream    aStringStream ;
      ostream           aIOStream ;
      return 0;
}

i suppose this will clear the picture

thanx
0
 
LVL 9

Expert Comment

by:tinchos
ID: 10356425
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Accept: jkr {http:#9925344}

Please leave any comments here within the next four days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

Tinchos
EE Cleanup Volunteer
0

Featured Post

Upgrade your Question Security!

Add Premium security features to your question to ensure its privacy or anonymity. Learn more about your ability to control Question Security today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
Suggested Courses

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question