ObjFW  Diff

{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFString *typeString;

		if (![[element name] isEqual: [self className]] ||
		    ![[element namespace] isEqual: OF_SERIALIZATION_NS])
			@throw [OFInvalidArgumentException exception];

		typeString = [[element attributeForName: @"type"] stringValue];

		if ([typeString isEqual: @"boolean"]) {
			_type = OF_NUMBER_TYPE_BOOL;

			if ([[element stringValue] isEqual: @"true"])
				_value.bool_ = true;
			else if ([[element stringValue] isEqual: @"false"])
				_value.bool_ = false;
			else
				@throw [OFInvalidArgumentException exception];
		} else if ([typeString isEqual: @"unsigned"]) {
			/*
			 * FIXME: This will fail if the value is bigger than
			 *	  INTMAX_MAX!
			 */
			_type = OF_NUMBER_TYPE_UINTMAX;
			_value.uIntMax = [element decimalValue];
		} else if ([typeString isEqual: @"signed"]) {
			_type = OF_NUMBER_TYPE_INTMAX;
			_value.intMax = [element decimalValue];
		} else if ([typeString isEqual: @"float"]) {
			union {
				float f;
				uint32_t u;
			} f;

			f.u = OF_BSWAP32_IF_LE(
			    (uint32_t)[element hexadecimalValue]);

			_type = OF_NUMBER_TYPE_FLOAT;
			_value.float_ = OF_BSWAP_FLOAT_IF_LE(f.f);
		} else if ([typeString isEqual: @"double"]) {
			union {
				double d;
				uint64_t u;
			} d;

			d.u = OF_BSWAP64_IF_LE(
			    (uint64_t)[element hexadecimalValue]);

			_type = OF_NUMBER_TYPE_DOUBLE;
			_value.double_ = OF_BSWAP_DOUBLE_IF_LE(d.d);
		} else
			@throw [OFInvalidArgumentException exception];

		objc_autoreleasePoolPop(pool);

	if (![object isKindOfClass: [OFNumber class]])
		return false;

	number = object;

	if (_type & OF_NUMBER_TYPE_FLOAT ||
	    number->_type & OF_NUMBER_TYPE_FLOAT) {
		double value1 = [number doubleValue];
		double value2 = [self doubleValue];

		if (isnan(value1) && isnan(value2))
			return true;
		if (isnan(value1) || isnan(value2))
			return false;

		return (value1 == value2);
	}

	if (_type & OF_NUMBER_TYPE_SIGNED ||
	    number->_type & OF_NUMBER_TYPE_SIGNED)
		return ([number intMaxValue] == [self intMaxValue]);

	return ([number uIntMaxValue] == [self uIntMaxValue]);
}

- (of_comparison_result_t)compare: (id <OFComparing>)object
{
	OFNumber *number;

	if (![(id)object isKindOfClass: [OFNumber class]])
		@throw [OFInvalidArgumentException exception];

	number = (OFNumber *)object;

	if (_type & OF_NUMBER_TYPE_FLOAT ||
	    number->_type & OF_NUMBER_TYPE_FLOAT) {
		double double1 = [self doubleValue];
		double double2 = [number doubleValue];

		if (double1 > double2)
			return OF_ORDERED_DESCENDING;
		if (double1 < double2)
			return OF_ORDERED_ASCENDING;

		return OF_ORDERED_SAME;
	} else if (_type & OF_NUMBER_TYPE_SIGNED ||
	    number->_type & OF_NUMBER_TYPE_SIGNED) {
		intmax_t int1 = [self intMaxValue];
		intmax_t int2 = [number intMaxValue];

		if (int1 > int2)
			return OF_ORDERED_DESCENDING;
		if (int1 < int2)
			return OF_ORDERED_ASCENDING;

		return OF_ORDERED_SAME;
	} else {
		uintmax_t uint1 = [self uIntMaxValue];
		uintmax_t uint2 = [number uIntMaxValue];

		if (uint1 > uint2)
			return OF_ORDERED_DESCENDING;
		if (uint1 < uint2)
			return OF_ORDERED_ASCENDING;

		return OF_ORDERED_SAME;
	}
}

- (uint32_t)hash
{
	of_number_type_t type = _type;
	uint32_t hash;

	/* Do we really need signed to represent this number? */
	if (type & OF_NUMBER_TYPE_SIGNED && [self intMaxValue] >= 0)
		type &= ~OF_NUMBER_TYPE_SIGNED;

	/* Do we really need floating point to represent this number? */
	if (type & OF_NUMBER_TYPE_FLOAT) {
		double v = [self doubleValue];

		if (v < 0) {
			if (v == [self intMaxValue]) {
				type &= ~OF_NUMBER_TYPE_FLOAT;
				type |= OF_NUMBER_TYPE_SIGNED;
			}
		} else {
			if (v == [self uIntMaxValue])
				type &= ~OF_NUMBER_TYPE_FLOAT;
		}
	}

	OF_HASH_INIT(hash);

	if (type & OF_NUMBER_TYPE_FLOAT) {
		union {
			double d;
			uint8_t b[sizeof(double)];
		} d;

		if (isnan([self doubleValue]))
			return 0;

		d.d = OF_BSWAP_DOUBLE_IF_BE([self doubleValue]);

		for (uint_fast8_t i = 0; i < sizeof(double); i++)
			OF_HASH_ADD(hash, d.b[i]);
	} else if (type & OF_NUMBER_TYPE_SIGNED) {
		intmax_t v = [self intMaxValue] * -1;

		while (v != 0) {
			OF_HASH_ADD(hash, v & 0xFF);
			v >>= 8;
		}

		OF_HASH_ADD(hash, 1);
	} else {
		uintmax_t v = [self uIntMaxValue];

		while (v != 0) {
			OF_HASH_ADD(hash, v & 0xFF);
			v >>= 8;
		}
	}

	case OF_NUMBER_TYPE_UINT8:
	case OF_NUMBER_TYPE_UINT16:
	case OF_NUMBER_TYPE_UINT32:
	case OF_NUMBER_TYPE_UINT64:
	case OF_NUMBER_TYPE_SIZE:
	case OF_NUMBER_TYPE_UINTMAX:
	case OF_NUMBER_TYPE_UINTPTR:
		return [OFString stringWithFormat: @"%ju", [self uIntMaxValue]];
	case OF_NUMBER_TYPE_CHAR:
	case OF_NUMBER_TYPE_SHORT:
	case OF_NUMBER_TYPE_INT:
	case OF_NUMBER_TYPE_LONG:
	case OF_NUMBER_TYPE_LONGLONG:
	case OF_NUMBER_TYPE_INT8:
	case OF_NUMBER_TYPE_INT16:
	case OF_NUMBER_TYPE_INT32:
	case OF_NUMBER_TYPE_INT64:
	case OF_NUMBER_TYPE_SSIZE:
	case OF_NUMBER_TYPE_INTMAX:
	case OF_NUMBER_TYPE_PTRDIFF:
	case OF_NUMBER_TYPE_INTPTR:
		return [OFString stringWithFormat: @"%jd", [self intMaxValue]];
	case OF_NUMBER_TYPE_FLOAT:
		ret = [OFMutableString stringWithFormat: @"%g", _value.float_];

		if (![ret containsString: @"."])
			[ret appendString: @".0"];

		[ret makeImmutable];

}

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool = objc_autoreleasePoolPush();
	OFXMLElement *element;

	element = [OFXMLElement elementWithName: [self className]
				      namespace: OF_SERIALIZATION_NS
				    stringValue: [self description]];

	switch (_type) {
	case OF_NUMBER_TYPE_BOOL:
		[element addAttributeWithName: @"type"
				  stringValue: @"boolean"];
		break;
	case OF_NUMBER_TYPE_UCHAR:

			uint32_t u;
		} f;

		f.f = OF_BSWAP_FLOAT_IF_LE(_value.float_);

		[element addAttributeWithName: @"type"
				  stringValue: @"float"];
		[element setStringValue:
		    [OFString stringWithFormat: @"%08" PRIx32,
						OF_BSWAP32_IF_LE(f.u)]];

		break;
	case OF_NUMBER_TYPE_DOUBLE:;
		union {
			double d;
			uint64_t u;
		} d;

		d.d = OF_BSWAP_DOUBLE_IF_LE(_value.double_);

		[element addAttributeWithName: @"type"
				  stringValue: @"double"];
		[element setStringValue:
		    [OFString stringWithFormat: @"%016" PRIx64,
						OF_BSWAP64_IF_LE(d.u)]];

		break;
	default:
		@throw [OFInvalidFormatException exception];
	}

	[element retain];

					 depth: (size_t)depth
{
	double doubleValue;

	if (_type == OF_NUMBER_TYPE_BOOL)
		return (_value.bool_ ? @"true" : @"false");

	doubleValue = [self doubleValue];
	if (isinf(doubleValue)) {
		if (options & OF_JSON_REPRESENTATION_JSON5) {
			if (doubleValue > 0)
				return @"Infinity";
			else
				return @"-Infinity";
		} else
			@throw [OFInvalidArgumentException exception];
	}

	return [self description];
}

- (OFData *)messagePackRepresentation
{
	OFMutableData *data;

	if (_type == OF_NUMBER_TYPE_BOOL) {

		data = [OFMutableData dataWithItemSize: 1
					      capacity: 9];

		[data addItem: &type];
		[data addItems: &tmp
			 count: sizeof(tmp)];
	} else if (_type & OF_NUMBER_TYPE_SIGNED) {
		intmax_t value = [self intMaxValue];

		if (value >= -32 && value < 0) {
			uint8_t tmp = 0xE0 | ((uint8_t)(value - 32) & 0x1F);

			data = [OFMutableData dataWithItems: &tmp
						      count: 1];
		} else if (value >= INT8_MIN && value <= INT8_MAX) {

			[data addItem: &type];
			[data addItems: &tmp
				 count: sizeof(tmp)];
		} else
			@throw [OFOutOfRangeException exception];
	} else {
		uintmax_t value = [self uIntMaxValue];

		if (value <= 127) {
			uint8_t tmp = ((uint8_t)value & 0x7F);

			data = [OFMutableData dataWithItems: &tmp
						      count: 1];
		} else if (value <= UINT8_MAX) {