Compile error on c++

bogoda · 01-29-2006, 07:45 AM

I am using RH9.

I tried to compile simple program and save it as Teat.cpp

#include<iostream.h>

int main()
{
cout << "Hello Cplusplus";
return 0;
}

using the command cc -o te Test.cpp i compile it.

It gives an error as follows.

In file included from /usr/include/c++/3.2.2/backward/iostream.h:31,
from Test.cpp:1:
/usr/include/c++/3.2.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
/tmp/ccrOBvuR.o(.text+0x19): In function `main':
: undefined reference to `std::cout'
/tmp/ccrOBvuR.o(.text+0x1e): In function `main':
: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std:perator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
/tmp/ccrOBvuR.o(.text+0x4a): In function `__static_initialization_and_destruction_0(int, int)':
: undefined reference to `std::ios_base::Init::Init[in-charge]()'
/tmp/ccrOBvuR.o(.text+0x79): In function `__tcf_0':
: undefined reference to `std::ios_base::Init::~Init [in-charge]()'
/tmp/ccrOBvuR.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status

Nylex · 01-29-2006, 08:09 AM

The warnings tell you to use (for example) "#include <iostream>". With this, you will also need to have a line saying "using namespace std;" (or "using std::cout;").

You should probably be using g++ to compile C++ programs, as cc as you're using it is for compiling C programs. On my system, cc is a symlink to gcc and it might be the same on yours. There might be an option to use with gcc to compile C++ programs, but I'm not sure. Just use g++.

Also, why on Earth are you using Red Hat 9?!

bogoda · 01-30-2006, 09:59 AM

I don the changes but it does not work.

Whats the wrong.

It works well for printf function
Any one knows

Nylex · 01-30-2006, 10:03 AM

What is the command you're using to compile?

graemef · 01-30-2006, 11:56 AM

Hi,

Take this code and save it as test.cpp

Code:

#include<iostream>

int main()
{
	std::cout << "Hello Cplusplus" << std::endl;
	return 0;
}

now issue the following commands

Code:

$ g++ -o test test.cpp
$ ./test
Hello Cplusplus
$

I have just tested this process and it works on my system (Fedora 4) so if your system is set up correctly it should work.

graeme.