• David Medlock (19/20) Mar 09 2005 import std.stdio;
• xs0 (3/28) Mar 09 2005 It should be "char C" instead of "C : char"...
• David Medlock (7/15) Mar 09 2005 Thanks.
• xs0 (6/14) Mar 09 2005 C matches types

David Medlock <amedlock nospam.org> writes:

import std.stdio;
template Test( C : char )
{
   void print()
   {
     writefln( C );
   }
}

void main( char[][] arg )
{
   Test!('a').print();
}

---------- Capture Output ----------
 "C:\dmd\bin\dmd.exe" -debug -c C:\proj\temp\test.d

C:\proj\temp\test.d(16): template instance Test!(97) does not match any 
template declaration
C:\proj\temp\test.d(16): undefined identifier template instance 
Test!(97).print
C:\proj\temp\test.d(16): function expected before (), not 'void'


Anyone see what is wrong here?

xs0 <xs0 xs0.com> writes:

David Medlock wrote:
 
 import std.stdio;
 template Test( C : char )
 {
   void print()
   {
     writefln( C );
   }
 }
 
 void main( char[][] arg )
 {
   Test!('a').print();
 }
 
 ---------- Capture Output ----------
  > "C:\dmd\bin\dmd.exe" -debug -c C:\proj\temp\test.d
 C:\proj\temp\test.d(16): template instance Test!(97) does not match any 
 template declaration
 C:\proj\temp\test.d(16): undefined identifier template instance 
 Test!(97).print
 C:\proj\temp\test.d(16): function expected before (), not 'void'
 
 
 Anyone see what is wrong here?

It should be "char C" instead of "C : char"...


xs0

David Medlock <amedlock nospam.org> writes:

xs0 wrote:

 David Medlock wrote:

 Anyone see what is wrong here?

 
 
 It should be "char C" instead of "C : char"...
 
 
 xs0

Thanks.

Don't know why I thought the : syntax was specialization....

What really threw me off is if you make it

template Test( C )

it still fails, which is kind of weird, as there is no other Test 
template....

xs0 <xs0 xs0.com> writes:

 Don't know why I thought the : syntax was specialization....
 
 What really threw me off is if you make it
 
 template Test( C )
 
 it still fails, which is kind of weird, as there is no other Test 
 template....

C matches types
char C matches actual chars (values)
C : Type matches Type or its derivative (or maybe just Type, not sure)
C : char matches just type char (not a char value or even char typedef)
char C : 'a' matches the character 'a'


xs0