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digitalmars.D.learn - determine if X is a template

reply BC <NOTmi_emayl_adrez hotmail.com.remove.not> writes:
is there any way to determine if an identifier is a template, and how many  
parameters it has?

i'm doing a multimethods kind of thing to see if you can simulate virtual  
template functions...
Nov 21 2007
parent reply BC <NOTmi_emayl_adrez hotmail.com.remove.not> writes:
On Wed, 21 Nov 2007 14:34:46 -0000, BC  
<NOTmi_emayl_adrez hotmail.com.remove.not> wrote:


 is there any way to determine if an identifier is a template, and how  
 many parameters it has?

 i'm doing a multimethods kind of thing to see if you can simulate  
 virtual template functions...



oh i figured it out, is(Templ) returns false and is(Templ!(int)) returns  
true
  if Templ takes one type argument
Nov 21 2007
parent Bill Baxter <dnewsgroup billbaxter.com> writes:
BC wrote:

 On Wed, 21 Nov 2007 14:34:46 -0000, BC 
 <NOTmi_emayl_adrez hotmail.com.remove.not> wrote:
 

 is there any way to determine if an identifier is a template, and how 
 many parameters it has?

 i'm doing a multimethods kind of thing to see if you can simulate 
 virtual template functions...



 oh i figured it out, is(Templ) returns false and is(Templ!(int)) returns 
 true
  if Templ takes one type argument



Note there are other types of template parameters.
I don't think the check above will catch these templates:
template Templ(int x) { ... }  // or float or string or ...
or
template Templ(alias x) { ... }

--bb
Nov 21 2007