Mail Archives: cygwin/2003/09/16/18:43:49
Alex Vinokur wrote:
> > # include <iostream>
> > # include <fstream>
>
> using namespace std; // must be for g++ 3.x; otherwise you should use not
'cout' but 'std::cout', etc.
>
> >
>
Could someone tell me what I am doing wrong or do I have something set up wrong
in my install. I am simply trying to learn but if I put this in a file called
first.cpp:
//
// this is first test application
//
#include <iostream>
using namespace std;
int main()
{
cout << "Welcome to C++\r\n";
cout << "Hope you learn a lot\r\n";
}
and then do:
/usr/develop/src/learning
$ gcc -g -o ./debug/first.exe ./first.cpp
I get this for output - not too pretty.
/tmp/ccRHUQ8U.o(.text+0x49): In function `main':
/usr/develop/src/learning/first.cpp:11: undefined reference to `std::cout'
/tmp/ccRHUQ8U.o(.text+0x56):/usr/develop/src/learning/first.cpp:11: undefined
re
ference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<<
<
std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&,
cha
r const*)'
/tmp/ccRHUQ8U.o(.text+0x5d):/usr/develop/src/learning/first.cpp:12: undefined
re
ference to `std::cout'
/tmp/ccRHUQ8U.o(.text+0x6a):/usr/develop/src/learning/first.cpp:12: undefined
re
ference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<<
<
std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&,
cha
r const*)'
/tmp/ccRHUQ8U.o(.text+0x93): In function
`_Z41__static_initialization_and_destru
ction_0ii':
/usr/include/c++/3.2/iostream:62: undefined reference to
`std::ios_base::Init::I
nit[in-charge]()'
/tmp/ccRHUQ8U.o(.text+0xae):/usr/include/c++/3.2/iostream:62: undefined
referenc
e to `std::ios_base::Init::~Init [in-charge]()'
/tmp/ccRHUQ8U.o(.eh_frame+0x11):first.cpp: undefined reference to
`___gxx_person
ality_v0'
collect2: ld returned 1 exit status
/usr/develop/src/learning
$
And it doesn't get any better if I try it with -mno-cygwin. I can compile the
Cygwin cvs tree and the setup cvs tree but those you makefiles.
Any help or a pointer would be appreciated.
bk
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