how to define infix function

[Ali Çehreli]

On 06/02/2018 02:44 PM, greatsam4sure wrote:

 > is it possible to define infix function in D
 >
 > 3.min(5)// 3: where min is a function, works in D
 > 3 min 5 // does not work.

This is called universal function call syntax (UFCS) in D. The idea is 
simple: You can pull the first argument out as if the function is a 
member function of that argument. So, in your case it already works 
because there is already a min() function that works with two (actually, 
many) parameters:

import std.algorithm;

void main() {
     assert(min(3, 5) == 3);
     assert(3.min(5) == 3);
}

However, many people don't like overusing it; it works well only in 
cases where the first parameter is arguably the "main character" in the 
operation. For example, min doesn't look good because all parameters 
have equal roles in that function.

Ali