fixnum/lib/src/int32.dart - third_party/dart-pkg - Git at Google

 // Copyright (c) 2012, 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.

 // ignore_for_file: constant_identifier_names

 import 'int64.dart';
 import 'intx.dart';
 import 'utilities.dart' as u;

 /// An immutable 32-bit signed integer, in the range [-2^31, 2^31 - 1].
 /// Arithmetic operations may overflow in order to maintain this range.
 class Int32 implements IntX {
   /// The maximum positive value attainable by an [Int32], namely
   /// 2147483647.
   static const Int32 MAX_VALUE = Int32._internal(0x7FFFFFFF);

   /// The minimum positive value attainable by an [Int32], namely
   /// -2147483648.
   static const Int32 MIN_VALUE = Int32._internal(-0x80000000);

   /// An [Int32] constant equal to 0.
   static const Int32 ZERO = Int32._internal(0);

   /// An [Int32] constant equal to 1.
   static const Int32 ONE = Int32._internal(1);

   /// An [Int32] constant equal to 2.
   static const Int32 TWO = Int32._internal(2);

   // Mask to 32-bits.
   static const int _MASK_U32 = 0xFFFFFFFF;

   /// Parses [source] in a given [radix] between 2 and 36.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of base-[radix]
   /// digits (using letters from `a` to `z` as digits with values 10 through
   /// 25 for radixes above 10), possibly prefixed by a `-` sign.
   ///
   /// Throws a [FormatException] if the input is not a valid
   /// integer numeral in base [radix].
   static Int32 parseRadix(String source, int radix) =>
       _parseRadix(source, u.validateRadix(radix), true)!;

   /// Parses [source] in a given [radix] between 2 and 36.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of base-[radix]
   /// digits (using letters from `a` to `z` as digits with values 10 through
   /// 25 for radixes above 10), possibly prefixed by a `-` sign.
   ///
   /// Throws a [FormatException] if the input is not a valid
   /// integer numeral in base [radix].
   static Int32? tryParseRadix(String source, int radix) =>
       _parseRadix(source, u.validateRadix(radix), false);

   // TODO(rice) - Make this faster by converting several digits at once.
   static Int32? _parseRadix(String s, int radix, bool throwOnError) {
     var index = 0;
     var negative = false;
     if (s.startsWith('-')) {
       negative = true;
       index = 1;
     }
     if (index == s.length) {
       if (!throwOnError) return null;
       throw FormatException('No digits', s, index);
     }
     var result = 0;
     for (; index < s.length; index++) {
       var c = s.codeUnitAt(index);
       var digit = u.decodeDigit(c);
       if (digit < radix) {
         /// Doesn't matter whether the result is unsigned
         /// or signed (as on the web), only the bits matter
         /// to the [Int32.new] constructor.
         result = (result * radix + digit) & _MASK_U32;
       } else {
         if (!throwOnError) return null;
         throw FormatException('Non radix code unit', s, index);
       }
     }
     if (negative) result = -result;
     return Int32(result);
   }

   /// Parses [source] as a decimal numeral.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of digits (`0`-`9`),
   /// possibly prefixed by a `-` sign.
   ///
   /// Throws a [FormatException] if the input is not a valid
   /// decimal integer numeral.
   static Int32 parseInt(String source) => _parseRadix(source, 10, true)!;

   /// Parses [source] as a decimal numeral.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of digits (`0`-`9`),
   /// possibly prefixed by a `-` sign.
   ///
   /// Throws a [FormatException] if the input is not a valid
   /// decimal integer numeral.
   static Int32? tryParseInt(String source) => _parseRadix(source, 10, false);

   /// Parses [source] as a hexadecimal numeral.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of hexadecimal
   /// digits (`0`-`9`, `a`-`f` or `A`-`F`), possibly prefixed by a `-` sign.
   ///
   /// Returns `null` if the input is not a valid
   /// hexadecimal integer numeral.
   static Int32 parseHex(String source) => _parseRadix(source, 16, true)!;

   /// Parses [source] as a hexadecimal numeral.
   ///
   /// Returns an [Int32] with the numerical value of [source].
   /// If the numerical value of [source] does not fit
   /// in a signed 32 bit integer,
   /// the numerical value is truncated to the lowest 32 bits
   /// of the value's binary representation,
   /// interpreted as a 32-bit two's complement integer.
   ///
   /// The [source] string must contain a sequence of hexadecimal
   /// digits (`0`-`9`, `a`-`f` or `A`-`F`), possibly prefixed by a `-` sign.
   ///
   /// Returns `null` if the input is not a valid
   /// hexadecimal integer numeral.
   static Int32? tryParseHex(String source) => _parseRadix(source, 16, false);

   // The internal value, kept in the range [MIN_VALUE, MAX_VALUE].
   final int _i;

   const Int32._internal(int i) : _i = i;

   /// Constructs an [Int32] from an [int].  Only the low 32 bits of the input
   /// are used.
   Int32([int i = 0]) : _i = (i & 0x7fffffff) - (i & 0x80000000);

   // Returns the [int] representation of the specified value. Throws
   // [ArgumentError] for non-integer arguments.
   int _toInt(Object val) {
     if (val is Int32) {
       return val._i;
     } else if (val is int) {
       return val;
     }
     throw ArgumentError.value(val, 'other', 'Not an int, Int32 or Int64');
   }

   // The +, -, * , &, |, and ^ operaters deal with types as follows:
   //
   // Int32 + int => Int32
   // Int32 + Int32 => Int32
   // Int32 + Int64 => Int64
   //
   // The %, ~/ and remainder operators return an Int32 even with an Int64
   // argument, since the result cannot be greater than the value on the
   // left-hand side:
   //
   // Int32 % int => Int32
   // Int32 % Int32 => Int32
   // Int32 % Int64 => Int32

   @override
   IntX operator +(Object other) {
     if (other is Int64) {
       return toInt64() + other;
     }
     return Int32(_i + _toInt(other));
   }

   @override
   IntX operator -(Object other) {
     if (other is Int64) {
       return toInt64() - other;
     }
     return Int32(_i - _toInt(other));
   }

   @override
   Int32 operator -() => Int32(-_i);

   @override
   IntX operator *(Object other) {
     if (other is Int64) {
       return toInt64() * other;
     }
     // TODO(rice) - optimize
     return (toInt64() * other).toInt32();
   }

   @override
   Int32 operator %(Object other) {
     if (other is Int64) {
       // Result will be Int32
       return (toInt64() % other).toInt32();
     }
     return Int32(_i % _toInt(other));
   }

   @override
   Int32 operator ~/(Object other) {
     if (other is Int64) {
       return (toInt64() ~/ other).toInt32();
     }
     return Int32(_i ~/ _toInt(other));
   }

   @override
   Int32 remainder(Object other) {
     if (other is Int64) {
       var t = toInt64();
       return (t - (t ~/ other) * other).toInt32();
     }
     return this - (this ~/ other) * other as Int32;
   }

   @override
   Int32 operator &(Object other) {
     if (other is Int64) {
       return (toInt64() & other).toInt32();
     }
     return Int32(_i & _toInt(other));
   }

   @override
   Int32 operator |(Object other) {
     if (other is Int64) {
       return (toInt64() | other).toInt32();
     }
     return Int32(_i | _toInt(other));
   }

   @override
   Int32 operator ^(Object other) {
     if (other is Int64) {
       return (toInt64() ^ other).toInt32();
     }
     return Int32(_i ^ _toInt(other));
   }

   @override
   Int32 operator ~() => Int32(~_i);

   @override
   Int32 operator <<(int n) {
     if (n < 0) {
       throw ArgumentError(n);
     }
     if (n >= 32) {
       return ZERO;
     }
     return Int32(_i << n);
   }

   @override
   Int32 operator >>(int n) {
     if (n < 0) {
       throw ArgumentError(n);
     }
     if (n >= 32) {
       return isNegative ? const Int32._internal(-1) : ZERO;
     }
     int value;
     if (_i >= 0) {
       value = _i >> n;
     } else {
       value = (_i >> n) | (0xffffffff << (32 - n));
     }
     return Int32(value);
   }

   @override
   Int32 shiftRightUnsigned(int n) {
     if (n < 0) {
       throw ArgumentError(n);
     }
     if (n >= 32) {
       return ZERO;
     }
     int value;
     if (_i >= 0) {
       value = _i >> n;
     } else {
       value = (_i >> n) & ((1 << (32 - n)) - 1);
     }
     return Int32(value);
   }

   /// Returns [:true:] if this [Int32] has the same numeric value as the
   /// given object.  The argument may be an [int] or an [IntX].
   @override
   bool operator ==(Object other) {
     if (other is Int32) {
       return _i == other._i;
     } else if (other is Int64) {
       return toInt64() == other;
     } else if (other is int) {
       return _i == other;
     }
     return false;
   }

   @override
   int compareTo(Object other) {
     if (other is Int64) {
       return toInt64().compareTo(other);
     }
     return _i.compareTo(_toInt(other));
   }

   @override
   bool operator <(Object other) {
     if (other is Int64) {
       return toInt64() < other;
     }
     return _i < _toInt(other);
   }

   @override
   bool operator <=(Object other) {
     if (other is Int64) {
       return toInt64() <= other;
     }
     return _i <= _toInt(other);
   }

   @override
   bool operator >(Object other) {
     if (other is Int64) {
       return toInt64() > other;
     }
     return _i > _toInt(other);
   }

   @override
   bool operator >=(Object other) {
     if (other is Int64) {
       return toInt64() >= other;
     }
     return _i >= _toInt(other);
   }

   @override
   bool get isEven => (_i & 0x1) == 0;

   @override
   bool get isMaxValue => _i == 2147483647;

   @override
   bool get isMinValue => _i == -2147483648;

   @override
   bool get isNegative => _i < 0;

   @override
   bool get isOdd => (_i & 0x1) == 1;

   @override
   bool get isZero => _i == 0;

   @override
   int get bitLength => _i.bitLength;

   @override
   int get hashCode => _i;

   @override
   Int32 abs() => _i < 0 ? Int32(-_i) : this;

   @override
   Int32 clamp(Object lowerLimit, Object upperLimit) {
     if (this < lowerLimit) {
       if (lowerLimit is IntX) return lowerLimit.toInt32();
       if (lowerLimit is int) return Int32(lowerLimit);
       throw ArgumentError(lowerLimit);
     } else if (this > upperLimit) {
       if (upperLimit is IntX) return upperLimit.toInt32();
       if (upperLimit is int) return Int32(upperLimit);
       throw ArgumentError(upperLimit);
     }
     return this;
   }

   @override
   int numberOfLeadingZeros() => u.numberOfLeadingZeros(_i);

   @override
   int numberOfTrailingZeros() => u.numberOfTrailingZeros(_i);

   @override
   Int32 toSigned(int width) {
     if (width < 1 || width > 32) throw RangeError.range(width, 1, 32);
     return Int32(_i.toSigned(width));
   }

   @override
   Int32 toUnsigned(int width) {
     if (width < 0 || width > 32) throw RangeError.range(width, 0, 32);
     return Int32(_i.toUnsigned(width));
   }

   @override
   List<int> toBytes() {
     var result = List<int>.filled(4, 0);
     result[0] = _i & 0xff;
     result[1] = (_i >> 8) & 0xff;
     result[2] = (_i >> 16) & 0xff;
     result[3] = (_i >> 24) & 0xff;
     return result;
   }

   @override
   double toDouble() => _i.toDouble();

   @override
   int toInt() => _i;

   @override
   Int32 toInt32() => this;

   @override
   Int64 toInt64() => Int64(_i);

   @override
   String toString() => _i.toString();

   @override
   String toHexString() => _i.toRadixString(16);

   @override
   String toRadixString(int radix) => _i.toRadixString(radix);
 }
	// Copyright (c) 2012, 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.

	// ignore_for_file: constant_identifier_names

	import 'int64.dart';
	import 'intx.dart';
	import 'utilities.dart' as u;

	/// An immutable 32-bit signed integer, in the range [-2^31, 2^31 - 1].
	/// Arithmetic operations may overflow in order to maintain this range.
	class Int32 implements IntX {
	/// The maximum positive value attainable by an [Int32], namely
	/// 2147483647.
	static const Int32 MAX_VALUE = Int32._internal(0x7FFFFFFF);

	/// The minimum positive value attainable by an [Int32], namely
	/// -2147483648.
	static const Int32 MIN_VALUE = Int32._internal(-0x80000000);

	/// An [Int32] constant equal to 0.
	static const Int32 ZERO = Int32._internal(0);

	/// An [Int32] constant equal to 1.
	static const Int32 ONE = Int32._internal(1);

	/// An [Int32] constant equal to 2.
	static const Int32 TWO = Int32._internal(2);

	// Mask to 32-bits.
	static const int _MASK_U32 = 0xFFFFFFFF;

	/// Parses [source] in a given [radix] between 2 and 36.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of base-[radix]
	/// digits (using letters from `a` to `z` as digits with values 10 through
	/// 25 for radixes above 10), possibly prefixed by a `-` sign.
	///
	/// Throws a [FormatException] if the input is not a valid
	/// integer numeral in base [radix].
	static Int32 parseRadix(String source, int radix) =>
	_parseRadix(source, u.validateRadix(radix), true)!;

	/// Parses [source] in a given [radix] between 2 and 36.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of base-[radix]
	/// digits (using letters from `a` to `z` as digits with values 10 through
	/// 25 for radixes above 10), possibly prefixed by a `-` sign.
	///
	/// Throws a [FormatException] if the input is not a valid
	/// integer numeral in base [radix].
	static Int32? tryParseRadix(String source, int radix) =>
	_parseRadix(source, u.validateRadix(radix), false);

	// TODO(rice) - Make this faster by converting several digits at once.
	static Int32? _parseRadix(String s, int radix, bool throwOnError) {
	var index = 0;
	var negative = false;
	if (s.startsWith('-')) {
	negative = true;
	index = 1;
	}
	if (index == s.length) {
	if (!throwOnError) return null;
	throw FormatException('No digits', s, index);
	}
	var result = 0;
	for (; index < s.length; index++) {
	var c = s.codeUnitAt(index);
	var digit = u.decodeDigit(c);
	if (digit < radix) {
	/// Doesn't matter whether the result is unsigned
	/// or signed (as on the web), only the bits matter
	/// to the [Int32.new] constructor.
	result = (result * radix + digit) & _MASK_U32;
	} else {
	if (!throwOnError) return null;
	throw FormatException('Non radix code unit', s, index);
	}
	}
	if (negative) result = -result;
	return Int32(result);
	}

	/// Parses [source] as a decimal numeral.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of digits (`0`-`9`),
	/// possibly prefixed by a `-` sign.
	///
	/// Throws a [FormatException] if the input is not a valid
	/// decimal integer numeral.
	static Int32 parseInt(String source) => _parseRadix(source, 10, true)!;

	/// Parses [source] as a decimal numeral.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of digits (`0`-`9`),
	/// possibly prefixed by a `-` sign.
	///
	/// Throws a [FormatException] if the input is not a valid
	/// decimal integer numeral.
	static Int32? tryParseInt(String source) => _parseRadix(source, 10, false);

	/// Parses [source] as a hexadecimal numeral.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of hexadecimal
	/// digits (`0`-`9`, `a`-`f` or `A`-`F`), possibly prefixed by a `-` sign.
	///
	/// Returns `null` if the input is not a valid
	/// hexadecimal integer numeral.
	static Int32 parseHex(String source) => _parseRadix(source, 16, true)!;

	/// Parses [source] as a hexadecimal numeral.
	///
	/// Returns an [Int32] with the numerical value of [source].
	/// If the numerical value of [source] does not fit
	/// in a signed 32 bit integer,
	/// the numerical value is truncated to the lowest 32 bits
	/// of the value's binary representation,
	/// interpreted as a 32-bit two's complement integer.
	///
	/// The [source] string must contain a sequence of hexadecimal
	/// digits (`0`-`9`, `a`-`f` or `A`-`F`), possibly prefixed by a `-` sign.
	///
	/// Returns `null` if the input is not a valid
	/// hexadecimal integer numeral.
	static Int32? tryParseHex(String source) => _parseRadix(source, 16, false);

	// The internal value, kept in the range [MIN_VALUE, MAX_VALUE].
	final int _i;

	const Int32._internal(int i) : _i = i;

	/// Constructs an [Int32] from an [int]. Only the low 32 bits of the input
	/// are used.
	Int32([int i = 0]) : _i = (i & 0x7fffffff) - (i & 0x80000000);

	// Returns the [int] representation of the specified value. Throws
	// [ArgumentError] for non-integer arguments.
	int _toInt(Object val) {
	if (val is Int32) {
	return val._i;
	} else if (val is int) {
	return val;
	}
	throw ArgumentError.value(val, 'other', 'Not an int, Int32 or Int64');
	}

	// The +, -, * , &, \|, and ^ operaters deal with types as follows:
	//
	// Int32 + int => Int32
	// Int32 + Int32 => Int32
	// Int32 + Int64 => Int64
	//
	// The %, ~/ and remainder operators return an Int32 even with an Int64
	// argument, since the result cannot be greater than the value on the
	// left-hand side:
	//
	// Int32 % int => Int32
	// Int32 % Int32 => Int32
	// Int32 % Int64 => Int32

	@override
	IntX operator +(Object other) {
	if (other is Int64) {
	return toInt64() + other;
	}
	return Int32(_i + _toInt(other));
	}

	@override
	IntX operator -(Object other) {
	if (other is Int64) {
	return toInt64() - other;
	}
	return Int32(_i - _toInt(other));
	}

	@override
	Int32 operator -() => Int32(-_i);

	@override
	IntX operator *(Object other) {
	if (other is Int64) {
	return toInt64() * other;
	}
	// TODO(rice) - optimize
	return (toInt64() * other).toInt32();
	}

	@override
	Int32 operator %(Object other) {
	if (other is Int64) {
	// Result will be Int32
	return (toInt64() % other).toInt32();
	}
	return Int32(_i % _toInt(other));
	}

	@override
	Int32 operator ~/(Object other) {
	if (other is Int64) {
	return (toInt64() ~/ other).toInt32();
	}
	return Int32(_i ~/ _toInt(other));
	}

	@override
	Int32 remainder(Object other) {
	if (other is Int64) {
	var t = toInt64();
	return (t - (t ~/ other) * other).toInt32();
	}
	return this - (this ~/ other) * other as Int32;
	}

	@override
	Int32 operator &(Object other) {
	if (other is Int64) {
	return (toInt64() & other).toInt32();
	}
	return Int32(_i & _toInt(other));
	}

	@override
	Int32 operator \|(Object other) {
	if (other is Int64) {
	return (toInt64() \| other).toInt32();
	}
	return Int32(_i \| _toInt(other));
	}

	@override
	Int32 operator ^(Object other) {
	if (other is Int64) {
	return (toInt64() ^ other).toInt32();
	}
	return Int32(_i ^ _toInt(other));
	}

	@override
	Int32 operator ~() => Int32(~_i);

	@override
	Int32 operator <<(int n) {
	if (n < 0) {
	throw ArgumentError(n);
	}
	if (n >= 32) {
	return ZERO;
	}
	return Int32(_i << n);
	}

	@override
	Int32 operator >>(int n) {
	if (n < 0) {
	throw ArgumentError(n);
	}
	if (n >= 32) {
	return isNegative ? const Int32._internal(-1) : ZERO;
	}
	int value;
	if (_i >= 0) {
	value = _i >> n;
	} else {
	value = (_i >> n) \| (0xffffffff << (32 - n));
	}
	return Int32(value);
	}

	@override
	Int32 shiftRightUnsigned(int n) {
	if (n < 0) {
	throw ArgumentError(n);
	}
	if (n >= 32) {
	return ZERO;
	}
	int value;
	if (_i >= 0) {
	value = _i >> n;
	} else {
	value = (_i >> n) & ((1 << (32 - n)) - 1);
	}
	return Int32(value);
	}

	/// Returns [:true:] if this [Int32] has the same numeric value as the
	/// given object. The argument may be an [int] or an [IntX].
	@override
	bool operator ==(Object other) {
	if (other is Int32) {
	return _i == other._i;
	} else if (other is Int64) {
	return toInt64() == other;
	} else if (other is int) {
	return _i == other;
	}
	return false;
	}

	@override
	int compareTo(Object other) {
	if (other is Int64) {
	return toInt64().compareTo(other);
	}
	return _i.compareTo(_toInt(other));
	}

	@override
	bool operator <(Object other) {
	if (other is Int64) {
	return toInt64() < other;
	}
	return _i < _toInt(other);
	}

	@override
	bool operator <=(Object other) {
	if (other is Int64) {
	return toInt64() <= other;
	}
	return _i <= _toInt(other);
	}

	@override
	bool operator >(Object other) {
	if (other is Int64) {
	return toInt64() > other;
	}
	return _i > _toInt(other);
	}

	@override
	bool operator >=(Object other) {
	if (other is Int64) {
	return toInt64() >= other;
	}
	return _i >= _toInt(other);
	}

	@override
	bool get isEven => (_i & 0x1) == 0;

	@override
	bool get isMaxValue => _i == 2147483647;

	@override
	bool get isMinValue => _i == -2147483648;

	@override
	bool get isNegative => _i < 0;

	@override
	bool get isOdd => (_i & 0x1) == 1;

	@override
	bool get isZero => _i == 0;

	@override
	int get bitLength => _i.bitLength;

	@override
	int get hashCode => _i;

	@override
	Int32 abs() => _i < 0 ? Int32(-_i) : this;

	@override
	Int32 clamp(Object lowerLimit, Object upperLimit) {
	if (this < lowerLimit) {
	if (lowerLimit is IntX) return lowerLimit.toInt32();
	if (lowerLimit is int) return Int32(lowerLimit);
	throw ArgumentError(lowerLimit);
	} else if (this > upperLimit) {
	if (upperLimit is IntX) return upperLimit.toInt32();
	if (upperLimit is int) return Int32(upperLimit);
	throw ArgumentError(upperLimit);
	}
	return this;
	}

	@override
	int numberOfLeadingZeros() => u.numberOfLeadingZeros(_i);

	@override
	int numberOfTrailingZeros() => u.numberOfTrailingZeros(_i);

	@override
	Int32 toSigned(int width) {
	if (width < 1 \|\| width > 32) throw RangeError.range(width, 1, 32);
	return Int32(_i.toSigned(width));
	}

	@override
	Int32 toUnsigned(int width) {
	if (width < 0 \|\| width > 32) throw RangeError.range(width, 0, 32);
	return Int32(_i.toUnsigned(width));
	}

	@override
	List<int> toBytes() {
	var result = List<int>.filled(4, 0);
	result[0] = _i & 0xff;
	result[1] = (_i >> 8) & 0xff;
	result[2] = (_i >> 16) & 0xff;
	result[3] = (_i >> 24) & 0xff;
	return result;
	}

	@override
	double toDouble() => _i.toDouble();

	@override
	int toInt() => _i;

	@override
	Int32 toInt32() => this;

	@override
	Int64 toInt64() => Int64(_i);

	@override
	String toString() => _i.toString();

	@override
	String toHexString() => _i.toRadixString(16);

	@override
	String toRadixString(int radix) => _i.toRadixString(radix);
	}