C++ Templated Class and Borland C++ Compiler

enemorales · 05-14-2005, 01:55 PM

Hi,

I'm trying to write some very simple templated classes in C++, but I get the next error when I use Borland Compiler 5.5.1 (It works fine with gcc). The problem is with the overcharge of operator <<.

Thank you a lot in advance...

Code:

g:\bc55\bin\bcc32 -P -Ig:\bc55\include -Lg:\bc55\lib test2.cpp
Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland
test2.cpp:
Error E2428 test2.cpp 16: Templates must be classes or functions
Error E2141 test2.cpp 16: Declaration syntax error
*** 2 errors in Compile ***

> Terminated with exit code 1.

Code:

#include <conio.h>

template <class T> class Couple;

template <class T>
class Couple {
  public:
  Couple();
  Couple(T ax, T ay) : x(ax), y(ay) {};
  T x;
  T y;
};

template <class T>
ostream & operator << ( ostream & o, Couple<T> p ) {
  o << "(" << p.x << "," << p.y << ")";
  return o;  
}

int main() {
  Couple<double> p1(1,2);
  Couple<double> p2(1.123,4.53);
  cout << p1 << endl;
  cout << p2 << endl;  
}

Greatwolf · 09-25-2010, 02:26 PM

you're getting that error because you're including the wrong header files.

Do this instead:

Code:

#include <iostream>
// or if you just want output stream
// #include <ostream>

using namespace std;

And why are you posting this question here? It has absolutely nothing to do with linux

Nylex · 09-25-2010, 02:30 PM

Quote:

Originally Posted by Greatwolf

And why are you posting this question here? It has absolutely nothing to do with linux

It's in the programming forum, so it's fine:

This forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.