• Caligo <iteronvexor gmail.com> Mar 26 2011
• David Nadlinger <see klickverbot.at> Mar 26 2011
• Caligo <iteronvexor gmail.com> Mar 26 2011

Caligo <iteronvexor gmail.com> writes:

What is the difference between this:
template isNumerik(T){
  enum bool isNumerik = is(T : long) || is(T : real);
}

and this:

template isNumerik(T){
  enum bool isNumerik = is(T == long) || is(T == real);
}


They both work and I can't find anywhere in the book where it talks about the :

David Nadlinger <see klickverbot.at> writes:

On 3/26/11 12:36 PM, Caligo wrote:
 What is the difference between this:
 template isNumerik(T){
    enum bool isNumerik = is(T : long) || is(T : real);
 }

 and this:

 template isNumerik(T){
    enum bool isNumerik = is(T == long) || is(T == real);
 }


 They both work and I can't find anywhere in the book where it talks about the :


When in doubt, RTFM: 
http://digitalmars.com/d/2.0/expression.html#IsExpression

(Using the colon allows implicit conversion, while == requires the types 
to be exactly the same)

David

Caligo <iteronvexor gmail.com> writes:

:-) thanks.