Hello,
I am using visual c++ 6 and i am having problems with string to work.
******** Here is the program project.cpp*********
#include <iostream.h>
#include <string>
#include "stdafx.h"
// This program just inverts the tickers.csv files execpt first line
int main(){
string ticker ;
return 0;
}
***************************
on compiling i get this error message
**************************
Compiling...
StdAfx.cpp
Compiling...
Project.cpp
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'string' :
undeclared identifier
C:\Windows\Desktop\Project\Project.cpp(17) : error C2146: syntax error
: missing ';' before identifier 'ticker'
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'ticker' :
undeclared identifier
Error executing cl.exe.
Project.exe - 3 error(s), 0 warning(s)
****************************
can someone tell me whats wrong here ?
thank you in advance.
Gaurav
6  10760 
Gaurav wrote: #include <iostream.h>
Drop the .h!
#include <iostream>
#include <string>
string ticker ;
std::string ticker;
--
WW aka Attila
"Gaurav" <ba********@hotmail.com> wrote in message
news:42*************************@posting.google.co m... Hello,
I am using visual c++ 6 and i am having problems with string to work.
******** Here is the program project.cpp*********
#include <iostream.h>
No such header in standard C++. The header which
declares the standard streams is <iostream> (no .h)
You're not using anything from it anyway, so you
can simply omit this line.
#include <string>
#include "stdafx.h"
A Microsoft specific header, not part of standard C++.
The code you've posted doesn't need it anyway, so
you can omit this line.
// This program just inverts the tickers.csv files execpt first line
Looks to me like all it does (tries to do) is define a string
object, then terminate.
int main(){
string ticker ;
std::string ticker;
return 0;
}
Applying changes I point out, we get:
#include <string>
int main()
{
std::string ticker;
return 0;
}
which will successfully compile without a diagnostic
on a compliant implementation, as well as with VC++ v6.0
***************************
on compiling i get this error message
**************************
Compiling...
StdAfx.cpp
Compiling...
Project.cpp
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'string' :
undeclared identifier
Accurate diagnostic message.
C:\Windows\Desktop\Project\Project.cpp(17) : error C2146: syntax error
: missing ';' before identifier 'ticker'
An artifact of the first message.
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'ticker' :
undeclared identifier
An artifact of the first message.
Error executing cl.exe.
Yup. :-)
Project.exe - 3 error(s), 0 warning(s)
****************************
can someone tell me whats wrong here ?
See above.
-Mike
"Mike Wahler" <mk******@mkwahler.net> wrote in message news:<KK*****************@newsread4.news.pas.earth link.net>... "Gaurav" <ba********@hotmail.com> wrote in message
news:42*************************@posting.google.co m... Hello,
I am using visual c++ 6 and i am having problems with string to work.
******** Here is the program project.cpp********* #include <iostream.h>
No such header in standard C++. The header which
declares the standard streams is <iostream> (no .h)
You're not using anything from it anyway, so you
can simply omit this line.
#include <string>
#include "stdafx.h"
A Microsoft specific header, not part of standard C++.
The code you've posted doesn't need it anyway, so
you can omit this line.
// This program just inverts the tickers.csv files execpt first line
Looks to me like all it does (tries to do) is define a string
object, then terminate.
int main(){
string ticker ;
std::string ticker;
return 0;
}
Applying changes I point out, we get:
#include <string>
int main()
{
std::string ticker;
return 0;
}
which will successfully compile without a diagnostic
on a compliant implementation, as well as with VC++ v6.0
***************************
on compiling i get this error message
**************************
Compiling...
StdAfx.cpp
Compiling...
Project.cpp
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'string' :
undeclared identifier
Accurate diagnostic message.
C:\Windows\Desktop\Project\Project.cpp(17) : error C2146: syntax error
: missing ';' before identifier 'ticker'
An artifact of the first message.
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'ticker' :
undeclared identifier
An artifact of the first message.
Error executing cl.exe.
Yup. :-)
Project.exe - 3 error(s), 0 warning(s)
****************************
can someone tell me whats wrong here ?
See above.
-Mike
********************
thanx
It works fine now. i have another problem using vector<string>
#include "stdafx.h"
#include <fstream>
//#include <ofstream.h>
#include <string>
#include <vector>
using namespace std;
// This program just inverts the tickers.csv files execpt first line
int main(){
//string ticker, line;
//string input,output;
//ifstream Tickers( "tickers.txt", ios::in);
//ifstream Input_File;
//ofstream Output_File;
vector<string> temp;
/*
while(Tickers>>ticker){
input = "tempdata/" + ticker + ".csv";
output = "tempdata/" + ticker + "1.csv";
Input_File.open( input.c_str(), ios::in);
Output_File.open ( output.c_str(), ios::app);
while ( Input_File >> line ){
temp.push_back(line);
}
Output_File << temp[0] << endl;
for ( unsigned i = ( temp.size() - 1 ); i > 0; i--)
Output_File << temp[i] << endl;
temp.clear();
Input_File.close();
Output_File.close();
}
*/
return 0;
}
Here effectively i just have vector<string> temp in main, everything
else is commented.
If i compile this program i get following warnings
*********************
Compiling...
project.cpp
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::allocator<char> const *,std::basic_string<char,std::char_traits<char>,st d::allocator<char>
,std::basic_string<ch
ar,std::char_traits<char>,std::allocator<char> > const
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
const *,int>' : identifier was truncated to '255' characters in the
debug information
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::allocator<char> *,std::basic_string<char,std::char_traits<char>,st d::allocator<char>
,std::basic_string<char,std
::char_traits<char>,std::allocator<char> >
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
*,int>' : identifier was truncated to '255' characters in the debug
information
c:\program files\microsoft visual studio\vc98\include\vector(39) :
warning C4786: 'std::vector<std::basic_string<char,std::char_trai ts<char>,std::allocator<char>,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocator<char>::vector<std::basic_string<char,std::char_traits< char>,std::allocator<char>
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocator<char>' : identifier was truncated to '255' characters in the debug
information
c:\program files\microsoft visual studio\vc98\include\vector(60) :
warning C4786: 'std::vector<std::basic_string<char,std::char_trai ts<char>,std::allocator<char>,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocator<char>
::~vector<std::basic_string<char,std::char_traits <char>,std::allocator<char>
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocator<char>' : identifier was truncated to '255' characters in the debug
information
Linking...
project.exe - 0 error(s), 4 warning(s)
***********************
how can i get rid of these ?
Also if i remove all the comments, i have problems with temp.clear()
All this program is doing is inverting about 40 files, whose names are
in tickers.txt.
thank you in advance.
Gaurav
in the top of the codes
u can do it as following, bcoz not namespace:):
....
#include <string>
....
using namespace std;
void fun()
{
std::string str;
}
"Gaurav" <ba********@hotmail.com> wrote in message
news:42*************************@posting.google.co m... Hello,
I am using visual c++ 6 and i am having problems with string to work.
******** Here is the program project.cpp*********
#include <iostream.h>
#include <string>
#include "stdafx.h"
// This program just inverts the tickers.csv files execpt first line
int main(){
string ticker ;
return 0;
}
***************************
on compiling i get this error message
**************************
Compiling...
StdAfx.cpp
Compiling...
Project.cpp
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'string' :
undeclared identifier
C:\Windows\Desktop\Project\Project.cpp(17) : error C2146: syntax error
: missing ';' before identifier 'ticker'
C:\Windows\Desktop\Project\Project.cpp(17) : error C2065: 'ticker' :
undeclared identifier
Error executing cl.exe.
Project.exe - 3 error(s), 0 warning(s)
****************************
can someone tell me whats wrong here ?
thank you in advance.
Gaurav
"Gaurav" <ba********@hotmail.com> wrote in message
news:42*************************@posting.google.co m...
It works fine now. i have another problem using vector<string>
#include "stdafx.h"
#include <fstream>
//#include <ofstream.h>
#include <string>
#include <vector>
using namespace std;
// This program just inverts the tickers.csv files execpt first line
int main(){
//string ticker, line;
//string input,output;
//ifstream Tickers( "tickers.txt", ios::in);
//ifstream Input_File;
//ofstream Output_File;
vector<string> temp;
/*
while(Tickers>>ticker){
input = "tempdata/" + ticker + ".csv";
output = "tempdata/" + ticker + "1.csv";
Input_File.open( input.c_str(), ios::in);
Output_File.open ( output.c_str(), ios::app);
while ( Input_File >> line ){
temp.push_back(line);
}
Output_File << temp[0] << endl;
for ( unsigned i = ( temp.size() - 1 ); i > 0; i--)
Output_File << temp[i] << endl;
temp.clear();
Input_File.close();
Output_File.close();
}
*/
return 0;
}
Here effectively i just have vector<string> temp in main, everything
else is commented.
If i compile this program i get following warnings
*********************
Compiling...
project.cpp
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::al
locator<char> const
*,std::basic_string<char,std::char_traits<char>,st d::allocator<char>,std::basic_string<ch
ar,std::char_traits<char>,std::allocator<char> > const
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
const *,int>' : identifier was truncated to '255' characters in the
debug information
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::al
locator<char> *,std::basic_string<char,std::char_traits<char>,st d::allocator<char>
,std::basic_string<char,std
::char_traits<char>,std::allocator<char> >
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
*,int>' : identifier was truncated to '255' characters in the debug
information
c:\program files\microsoft visual studio\vc98\include\vector(39) :
warning C4786:
'std::vector<std::basic_string<char,std::char_trai ts<char>,std::allocator<ch
ar>
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocato
r<char>
::vector<std::basic_string<char,std::char_traits< char>,std::allocator<char>
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocato
r<char> >' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\vector(60) :
warning C4786:
'std::vector<std::basic_string<char,std::char_trai ts<char>,std::allocator<ch
ar>
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocato
r<char>
::~vector<std::basic_string<char,std::char_traits <char>,std::allocator<char
,std::allocator<std::basic_string<char,std::char_ traits<char>,std::allocato
r<char> >' : identifier was truncated to '255' characters in the debug
information
Linking...
project.exe - 0 error(s), 4 warning(s)
***********************
how can i get rid of these ?
These can be safely ignored. If you want to hide them look in the MS
documentation for the #pragma method to do this. #pragma is not part of
standard C++, so any detailed questions about this should be directed to a
MS specific newsgroup.
Also if i remove all the comments, i have problems with temp.clear()
What problems exactly.
> If i compile this program i get following warnings
*********************
Compiling...
project.cpp
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::allocator<char> const *,std::basic_string<char,std::char_traits<char>,st d::allocator<char>
,std::basic_string<ch
ar,std::char_traits<char>,std::allocator<char> > const
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
const *,int>' : identifier was truncated to '255' characters in the
debug information
C:\Windows\Desktop\project\project.cpp(43) : warning C4786:
'std::reverse_iterator<std::basic_string<char,std: :char_traits<char>,std::allocator<char> *,std::basic_string<char,std::char_traits<char>,st d::allocator<char>
,std::basic_string<char,std
::char_traits<char>,std::allocator<char> >
&,std::basic_string<char,std::char_traits<char>,st d::allocator<char> >
*,int>' : identifier was truncated to '255' characters in the debug
information
[...snip...]
how can i get rid of these ?
Also if i remove all the comments, i have problems with temp.clear()
All this program is doing is inverting about 40 files, whose names are
in tickers.txt.
thank you in advance.
Gaurav
This is a problem with VC. You need to include
#pragma warning(disable: 4786)
at the top of the relevant header files. If there are many then do it in stdafx.h
Cheers,
Chris This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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