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Old 07-Jan-2005, 14:24
small_ticket small_ticket is offline
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What is "Ambigious symbol" ??*( a compilation error)

Here is some code:

CPP / C++ / C Code:
void Interpreter :: read ( char *filename )
{
	ifstream inClientFile ( filename , ios::in );
	
	
	//exitprogram if ifstream could not open file
	if(!inClientFile ) {
		cerr << "File could not be opened" <<endl;
		exit(1);
	} 


	char lineNo[2];
	char *string1;
	char string[80];


	//display each line
	while(inClientFile.getline(string,80)){
	
		for(int i=0;i<2;i++) //strtok da kullanılabilir...
			lineNo[i]=string[i];
		int y = atoi (lineNo);
		
		string1=&string[3];
		
		listObject.insert(string1,y);
		//cout<< string1 << "\n";
		
		
	}
}
and here are the errors:

Code:
c:\program files\microsoft visual studio\vc98\include\ios.h(146) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(159) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(159) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(160) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(180) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(207) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(210) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(219) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\streamb.h(90) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\streamb.h(90) : error C2872: 'streamoff' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\streamb.h(91) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\streamb.h(91) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(258) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(258) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(259) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(259) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(260) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(260) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(272) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(272) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(272) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(273) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ios.h(290) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(67) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(74) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(74) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(90) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(102) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(117) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(118) : error C2872: 'streamoff' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(119) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(126) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(132) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(139) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(140) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(140) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(140) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(142) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(143) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(145) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(146) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(148) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(149) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(150) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(152) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(153) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(155) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(156) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(157) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(159) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(161) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(162) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(167) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(169) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(169) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(170) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(170) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(175) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(175) : error C2872: 'istream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(177) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(177) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(178) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(178) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(179) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\istream.h(179) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(62) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(70) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(70) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(87) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(94) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(95) : error C2872: 'streamoff' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(96) : error C2872: 'streampos' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(101) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(107) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(112) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(113) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(113) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(113) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(115) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(116) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(118) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(119) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(121) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(123) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(124) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(126) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(127) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(133) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(135) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(135) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(136) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(136) : error C2872: 'streambuf' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(139) : error C2371: 'cout' : redefinition; different basic types
        c:\program files\microsoft visual studio\vc98\include\iostream(18) : see declaration of 'cout'
c:\program files\microsoft visual studio\vc98\include\ostream.h(143) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(143) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(144) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(144) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(145) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(145) : error C2872: 'ostream' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(147) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(147) : error C2872: 'ios' : ambiguous symbol
c:\program files\microsoft visual studio\vc98\include\ostream.h(147) : fatal error C1003: error count exceeds 100; stopping compilation

What is the meaning of this "ambiguous symbol"? What can I do to get rid of this? By the way I have included the ones below:

CPP / C++ / C Code:
#include <iostream>

using std::cout;
using std::cin;
using std::ios;
using std::cerr;
using std::endl;
using std::left;
using std::right;
using std::fixed;
using std::showpoint;

#include <fstream>

using std::ifstream;

#include <iomanip>

using namespace std;

//using std::setw;
//using std::setprecision;

#include <cstdlib>

#include <cstring>

using std ::string;

All suggestions and assistances are greatly appreciated.
  #2  
Old 07-Jan-2005, 16:55
davekw7x davekw7x is offline
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Join Date: Feb 2004
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Quote:
Originally Posted by small_ticket
All suggestions and assistances are greatly appreciated...

You didn't give us very much to work with.

I have seen the "ambiguous symbol" messages when people included both <iostream> and <iostream.h> (Don't do this.) Sometimes this happens when people have #include <> stuff inside an #included file that someone else created. (Or that they created and then forgot what was in it.)

If you can reduce the size of the program to a small enough number of lines to allow you to post the entire files (including all local include files that are used), and show the compile errors you got, maybe we could catch a clue. There's not much else I can do unless I can compile your code.

Here's an example that gives me hundreds of C2872 errors:

CPP / C++ / C Code:
#include <iostream>

using namespace std;

#include "myheader.h"

int main()
{
  cout << "Hello, World!" << endl;
  return 0;
}

The file "myheader.h" is this single line:

CPP / C++ / C Code:
#include <iostream.h>

Here are the first few error messages:
Code:
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(146) : error C2872: 'streambuf' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(159) : error C2872: 'ostream' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(159) : error C2872: 'ostream' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(160) : error C2872: 'ostream' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(180) : error C2872: 'streambuf' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(207) : error C2872: 'streambuf' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(210) : error C2872: 'streambuf' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\ios.h(219) : error C2872: 'ostream' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\streamb.h(90) : error C2872: 'streampos' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\streamb.h(90) : error C2872: 'streamoff' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\streamb.h(91) : error C2872: 'streampos' : ambiguous symbol
E:\PROGRA~1\MICROS~2\VC98\INCLUDE\streamb.h(91) : error C2872: 'streampos' : ambiguous symbol

Look familiar?

If I comment out the #include "myheader.h" it compiles and executes OK.

Regards,

Dave
Last edited by davekw7x : 07-Jan-2005 at 17:38.
  #3  
Old 07-Jan-2005, 21:10
small_ticket small_ticket is offline
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Join Date: May 2004
Posts: 45
small_ticket is on a distinguished road
Thanks davekw7x!

It has been solved as you said in one of the headers I had used <iostream.h> when I changed it all errors gone. Thanks :-o
 
 
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