Re: [Dev-C++] template usage

[Wolf P. <pe...@re...>]

Hi, Noorez Kassam,
I would try first "const T&":
 bool basic_bignumber<T, __low_value, __high_value>::operator>( const T& 
test )
(I cannot test it now)
I think there is something wrong with the prototype of the 
compare-operator. The compiler gets
no match in cases of parameter-types-incompatibilities. The "name" of 
the compare method is correct,
that's clear: "operator>".

best regards,
Wolf Peuker

Noorez Kassam schrieb:
> I'm having trouble using a template that i have.
> I'm making a template class, and overloaded the comparison operator >.
> The function below should compare the type of my class, with the 
> template parameter T. I tested it with int as the type for the 
> template and attempted to this comparison
>
> basic_bignumber<int,0,9> value(15);
> if( value > 3 )...
> but the compiler complained and said there was no match for operator>
> for value>3. Anyone have any ideas with whats wrong?
>
>  template< typename T, int __low_value, int __high_value >
>  bool basic_bignumber<T, __low_value, __high_value>::operator>( T& test )
>  {
>    basic_bignumber< T, __low_value, __high_value > compare( test );
>
>    int pos1 = 0, pos2 = 0;
>
>    for( int i = 0; i < value_size; i++ )
>    {
>      if( value[ i ] == 0 ) continue;
>      pos1 = i;
>      break;
>    }
>
>    for( int i = 0; i < compare.value_size; i++ )
>    {
>      if( compare.value[ i ] == 0 ) continue;
>      pos2 = i;
>      break;
>    }
>
>    if( pos1 == 0 && pos2 == 0 ) return false; //all were zero's
>
>    else if( pos1 != 0 && pos2 == 0 ) return true; //if this had something
>                                                   //while the other 
> didn't
>
>    else if ( pos1 == 0 && pos2 != 0 ) return false; //if this didn't have
>                                                  //anything, while the 
> other
>                                                  //did
>
>    //if the the total value_size - (pos+1) is then compare, there
>    //are more values, so this would be greater...
>    if( value_size-(pos1+1) > compare.value_size-(pos2+1) ) return true;
>
>    //so if both the pos's are the same and the value's are both of
>    //the same size...check each individual digit...
>    bool greater = true;
>
>    for( int i = pos1; i < value_size; i++ )
>    {
>      if( value[ i ] < compare.value[ i ] ) greater = false;
>      else continue;
>    }
>
>    return greater;
>  }
>
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