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From: "Dave Korn" <dave.korn@artimi.com>
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References: <Prayer.1.0.18.0710251014170.2520@webmail0.york.ac.uk>
Subject: RE: iostream with gcc
Date: Thu, 25 Oct 2007 10:23:30 +0100
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On 25 October 2007 10:14, Peter M Lee wrote:

> I apologize for what is probably a silly mistake on my part. I am just
> starting to use cygwin. When I tried a simple program
> 
> #include <iostream>
> using namespace std;
> 
> /**
>  * A simple program for demonstrating the basics of a C++ project.
>  */
> 
> int main() {
>     cout << "Hello, world";
>     cout << endl;
> 
>   return 0;
> }
> 
> with
> 
> $ gcc hello.cc
> 
> I got the following error message
> 
>
/cygdrive/c/Users/PB2579~1/AppData/Local/Temp/cc7nz7Xj.o:hello.cc:(.text+0xd):
> undefined reference to `std::basic_string<char, std::char_traits<char>,
> std::allocator<char> >::size() const'


  Use 'g++' to compile c++ programs, not 'gcc'.  Although they both are ver
similar drivers that invoke the sub-parts of the toolchain (compiler,
assembler, linkers), and in fact either one can recognize the extension of a
file and pass it to the right language version of the compiler, the g++ driver
also knows to add the appropriate -L and -l options for linking against the
standard C++ libraries automatically.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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