import std.algorithm.iteration;

import std.format;

import std.range;

import std.stdio;

import std.string;

​

void somefn(InputRange!(ubyte) r) {

    writeln(format!"%s"(r));

}

​

void main()

{

    auto a = "Hello, world!";

    auto b = inputRangeObject(a.representation.map!(b => ubyte(b)));

    pragma(msg, ElementType!(typeof(b)));

    somefn(b);

    auto c = stdin.byChunk(1024).joiner;

    auto d = inputRangeObject(c);

    pragma(msg, ElementType!(typeof(d)));

    somefn(d);

}