Thread: Compiling

Hello!
I was sent some C++ code that will be used to process files, by creating an object that takes two arguments: one is a string with the path for a (local) file, the other a stringstream where the result will be stored.
Since there was no main in the code I received, I have written my own - but when compiling (g++ in ubuntu) there's this error I can not solve:

Code:

error: conversion from ‘std::stringstream*’ to non-scalar
 type ‘std::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >’ requested

The main I wrote:

Code:

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include "emailParser.h"
using namespace std;

int main (int argc, char *argv[]) {
  string myfile = (string)argv[1];
  stringstream ftw = new stringstream();
  EmailParser(myfile, ftw);
  return 0;
}

The person who I got the code from is away in holidays and unfortunately, unreachable, so if anyone could point me out what I am doing wrong, I'd be much appreciated
Thanks!

=edit=
I can provide the full code if it helps

Are you a Java programmer, by any chance? The first most obvious problem is:

Code:

stringstream ftw = new stringstream();

new stringstream() returns a pointer to a stringstream, which clearly is not a stringstream. You would likely want to just write:

Code:

stringstream ftw;

Also, instead of casting argv[1] to string, you would likely want to just initialise myfile with argv[1], e.g.,

Code:

string myfile(argv[1]);

Of course, you should check that argc is greater than 1 before using argv[1].

First of all, thank you for your reply.
Second, you were right. Even though I am not a programmer, I do a little coding in Java, and even though I did look for c++ manuals and tuts in the web, somehow I failed to understand I would be creating a pointer and not the object.
So now I have a different error, but it seems it is a linking problem...

Code:

labrisio@la-ux:~$ g++ Metpreproc.cpp -o Meto
/tmp/ccuY3Pir.o: In function `main':
Metpreproc.cpp:(.text+0x153): undefined reference to `EmailParser::EmailParser(std::basic_string<char, std::char_traits<char>, std::allocator<char> >,
 std::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >&)'
Metpreproc.cpp:(.text+0x15e): undefined reference to `EmailParser::~EmailParser()'
collect2: ld returned 1 exit status

.. according to this fella.

So, now I'm looking at a page on how to create makefiles and such and wondering if I was doing the compiling wrong? Do all c++ programs require linking and makefiles?
Sorry for all the questions..

ALL C and C++ programs require linking to produce the final executable, since the code generated by the compiler needs to be combined with the C runtime library if nothing else. In this case, you probably also have a emailparser source file that you need to include.

Makefiles is a way to automate the process of building non-trivial sets of source-code into an executable file.

In this case, it is probably not necessary to have a makefile, but just add the other source file to the list of inputs for g++, e.g "g++ Metpreproc.cpp emailparser.cpp -o meto". Of course, I'm just guessing on the name of the source file. And the complete project may need many other source files to be complete - I can't know that.

--
Mats