[generalbastard]

i don't know anything about C++ so can anyone tell me why am I getting....

/usr/bin/ld: Undefined symbols:
___ls__7ostreamPCc
_cout

...when I try to compile...

#include <iostream.h>
void main()
{
cout << "Hello World.";
}

[lythari]

I'm having exactly the same problem, cc doesn't seem to like cout and cin for some reason.

[lythari]

Gah, a search of the forum archives shows that you need to use the command c++ instead of cc when compiling c++ programs in the command line.

[davechen]

Originally posted by lythari:
<STRONG>Gah, a search of the forum archives shows that you need to use the command c++ instead of cc when compiling c++ programs in the command line.</STRONG>

Yup, when you use "cc" the compiler assumes is a C program and so it links with the C libraries. cin and cout are C++ constructs, so you need to compile with "c++". They're the essentially the same program, but they invoke the linker, "ld" different.

dave

[generalbastard]

ah yes, that seems to be it... thank you and thank you.

[int69h]

This is for those who might be interested in what is going on.

c++ passes the '-lstdc++' flag on to the linker. 'c++ -o foo foo.c' and 'cc -o foo foo.c -lstdc++' work equally well.

[int69h]

Double post. Move along, nothing to see here.

[ 01-14-2002: Message edited by: int69h ]