On 09/11/2015 01:07 PM, Bahman Movaqar wrote:
> On Friday, 11 September 2015 at 18:39:15 UTC, Ali Çehreli wrote:
>> >> import std.stdio;
>> >>
>> >> bool isEven(int n) {
>> >>     return !(n % 2);
>> >> }
>> >>
>> >> int readValidInt(alias validator)(string prompt) {
>>
>> readValidInt() is a function template that takes two information:
>>
>> 1) The validator as its alias template parameter. alias template
>> parameter allows it to work with anything that can be called.
>
> I read "alias and with" chapter of the book to understand this but
> couldn't find any such use for `alias` there.  Does using `alias`
> instead of a type makes the parameter a `callable`?

Sorry for the confusion. :) The same keyword has a different use with templates:


http://ddili.org/ders/d.en/templates_more.html#ix_templates_more.alias,%20template%20parameter

Ali

On 09/11/2015 02:04 PM, Ali Çehreli wrote:
> The same keyword has a different use with
> templates:

And the official documentation:

  http://dlang.org/template.html#TemplateAliasParameter

Ali

On Friday, 11 September 2015 at 21:06:32 UTC, Ali Çehreli wrote:
> On 09/11/2015 02:04 PM, Ali Çehreli wrote:
>> The same keyword has a different use with
>> templates:
>
> And the official documentation:
>
>   http://dlang.org/template.html#TemplateAliasParameter


Thanks again!