tests/corelib/bigint_div_test.dart

// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// Testing Bigints with and without intrinsics.
// VMOptions=--intrinsify --no-enable-asserts
// VMOptions=--intrinsify --enable-asserts
// VMOptions=--no-intrinsify --enable-asserts
// VMOptions=--no-intrinsify --no-enable-asserts
// VMOptions=--runtime_allocate_old
// VMOptions=--runtime_allocate_spill_tlab

import "package:expect/expect.dart";

expectQuotient(aString, bString, expectedString) {
  BigInt a = BigInt.parse(aString, radix: 16);
  BigInt b = BigInt.parse(bString, radix: 16);
  BigInt expected = BigInt.parse(expectedString, radix: 16);
  BigInt actual = a ~/ b;
  String actualString = actual.toRadixString(16);
  print("$aString ~/ $bString");
  print(" = $actualString (expected $expectedString)");
  Expect.equals(expected, actual);
}

main() {
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "1",
  );
  expectQuotient(
    "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "0",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "a13fac3ee22b996ff6856c27c1f6d88aef0e",
    "157b1",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "3fac3ee22b996ff6856c27c1f6d88aef0e",
    "36662bd",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "ac3ee22b996ff6856c27c1f6d88aef0e",
    "141bfd63e",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "3ee22b996ff6856c27c1f6d88aef0e",
    "3714fb67de7",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "1",
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
  );

  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-1",
  );
  expectQuotient(
    "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "0",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "a13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-157b1",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "3fac3ee22b996ff6856c27c1f6d88aef0e",
    "-36662bd",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "ac3ee22b996ff6856c27c1f6d88aef0e",
    "-141bfd63e",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "3ee22b996ff6856c27c1f6d88aef0e",
    "-3714fb67de7",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "1",
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
  );

  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-1",
  );
  expectQuotient(
    "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "0",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-157b1",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-3fac3ee22b996ff6856c27c1f6d88aef0e",
    "-36662bd",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-ac3ee22b996ff6856c27c1f6d88aef0e",
    "-141bfd63e",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-3ee22b996ff6856c27c1f6d88aef0e",
    "-3714fb67de7",
  );
  expectQuotient(
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-1",
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
  );

  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "1",
  );
  expectQuotient(
    "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "0",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
    "157b1",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-3fac3ee22b996ff6856c27c1f6d88aef0e",
    "36662bd",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-ac3ee22b996ff6856c27c1f6d88aef0e",
    "141bfd63e",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-3ee22b996ff6856c27c1f6d88aef0e",
    "3714fb67de7",
  );
  expectQuotient(
    "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
    "-1",
    "d87becaa3701c97b31b5b8084f2b5b34e7857092",
  );
}