[your code here] Pure RPN calculator

[Mike Wey via Digitalmars-d]

On 26-07-17 16:40, Iakh wrote:
> On Wednesday, 26 July 2017 at 09:46:45 UTC, Timon Gehr wrote:
>>>      readln.split.fold!((stack,op){
>>>          switch(op){
>>>              static foreach(c;"+-*/") case [c]:
>>>                  return stack[0..$-2]~mixin("stack[$-2] "~c~" 
>>> stack[$-1]");
>>>              default: return stack~op.to!real;
>>>          }
>>>      })((real[]).init).writeln;
> 
> What does "case [c]:" mean?
> 

In the static foreach c is a `immutable char` by putting it between [ 
and ] you create an array of immutable characters (string).

-- 
Mike Wey