Benchmarking for to test -- operator x ~/ y is more efficient than (x / y).toInt().

main.dart

import 'dart:typed_data';

void main() {
  const t = 99999999999999999999.0; //A big number
  const step = 18871268712.0; //Random number
  const max = 999999;

  //Initialise time for calculating benchmark.
  var initialTime = DateTime.now().millisecondsSinceEpoch;
  for (int i = 0; i < max; i++) {
    t ~/ step;
  }
  print("t ~/ step = ${t ~/ step}");

  //Print time taken
  print("Time taken: ${DateTime.now().millisecondsSinceEpoch - initialTime} ms");

  //--------------------------------------------------------------------------

  //Init time again
  initialTime = DateTime.now().millisecondsSinceEpoch;
  for (int i = 0; i < max; i++) {
    (t / step).toInt();
  }
  print("(t / step).toInt() = ${(t / step).toInt()}");

  //Print time taken
  print("Time taken: ${DateTime.now().millisecondsSinceEpoch - initialTime} ms");

  //--------------------------------------------------------------------------

  //Init time again
  initialTime = DateTime.now().millisecondsSinceEpoch;
  for (int i = 0; i < max; i++) {
    (t / step).truncate();
  }
  print("(t / step).truncate() = ${(t / step).truncate()}");

  //Print time taken
  print("Time taken: ${DateTime.now().millisecondsSinceEpoch - initialTime} ms");

  //--------------------------------------------------------------------------

  //Init time again
  initialTime = DateTime.now().millisecondsSinceEpoch;
  for (int i = 0; i < max; i++) {
    (Float32x4.splat(t) / Float32x4.splat(step)).x.truncate();
  }
  print(
      "(Float32x4.splat(t) / Float32x4.splat(step)).x.truncate() = ${(Float32x4.splat(t) / Float32x4.splat(step)).x.truncate()}");

  //Print time taken
  print("Time taken: ${DateTime.now().millisecondsSinceEpoch - initialTime} ms");
}