CODEWITHSUNDEEP
c++templatescompiler-errors
user2479113
user2479113

Reputation: 3

C++ Template Class Compilation Error: expected init-declarator before '<' token

i'm studing templates in c++ and according to this tutorial: http://www.cprogramming.com/tutorial/templates.html

i made the class CalcTempl.h

#ifndef CALC_TEMPL_H
#define CALC_TEMPL_H

template <class A_Type> class CalcTempl
{
  public:
    A_Type multiply(A_Type x, A_Type y);
    A_Type add(A_Type x, A_Type y);
};

template <class A_Type> A_Type calc<A_Type>::multiply(A_Type x,A_Type y)
{
  return x*y;
}
template <class A_Type> A_Type calc<A_Type>::add(A_Type x, A_Type y)
{
  return x+y;
}

#endif

and main.cpp

#include <iostream>
#include "CalcTempl.h"

using namespace std;

int main(){

  CalcTempl<double> c2;

  double d1 = 5;
  double d2 = 4;

  double c2r1 = c2.add(d1, d2);

  cout << " C2 Result: " << c2r1 << "\n";

  return 0;
}

on compile (g++ main.cpp -o ttest) i got this error:

CalcTempl.h:11: error: expected init-declarator before '<' token
CalcTempl.h:11: error: expected `;' before '<' token
CalcTempl.h:15: error: expected init-declarator before '<' token
CalcTempl.h:15: error: expected `;' before '<' token

I can't found what is wrong

Upvotes: 0

Views: 2133

Answers (1)

Sebastian Redl
Sebastian Redl

Reputation: 72044

Your class is called CalcTempl, but at the point where you implement its members, you try to refer to it as calc. That can't work.

Upvotes: 2

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