import std.stdio; import std.conv; import std.datetime.stopwatch; int a; void f0() {} void f1() { auto b = a; } void f2() { auto b = to!string(a); } void main() { auto r = benchmark!(f0, f1, f2)(10_000); writeln("Time fx took to run 10,000 times:\n"); writeln("f0: ", r[0]); writeln("f1: ", r[1]); writeln("f2: ", r[2]); }