note
	description: "Platform-dependent properties"
	usage: "[
		This class should not be used directly through
		inheritance and client/supplier relationship.
		Inherit from KL_SHARED_PLATFORM instead.
	]"
	pattern: "Singleton"
	library: "Gobo Eiffel Kernel Library"
	copyright: "Copyright (c) 1999-2008, Eric Bezault and others"
	license: "MIT License"
	date: "$Date: 2016-05-06 19:15:38 +0000 (Fri, 06 May 2016) $"
	revision: "$Revision: 98678 $"

class 
	KL_PLATFORM

create 
	default_create

feature {NONE} -- Initialization

	default_create
			-- Process instances of classes with no creation clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end
	
feature -- Access

	generating_type: TYPE [detachable KL_PLATFORM]
			-- Type of current object
			-- (type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generating_type_not_void: Result /= Void
		end

	generator: STRING_8
			-- Name of current object's generating class
			-- (base class of the type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generator_not_void: Result /= Void
			generator_not_empty: not Result.is_empty
		end
	
feature -- Comparison

	frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are a and b either both void
			-- or attached to isomorphic object structures?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_deep_equal (b)
			end
		ensure -- from ANY
			instance_free: class
			shallow_implies_deep: standard_equal (a, b) implies Result
			both_or_none_void: (a = Void) implies (Result = (b = Void))
			same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b))
			symmetric: Result implies deep_equal (b, a)
		end

	frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are a and b either both void or attached
			-- to objects considered equal?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_equal (b)
			end
		ensure -- from ANY
			instance_free: class
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b))
		end

	frozen is_deep_equal (other: KL_PLATFORM): BOOLEAN
			-- Are Current and other attached to isomorphic object structures?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			shallow_implies_deep: standard_is_equal (other) implies Result
			same_type: Result implies same_type (other)
			symmetric: Result implies other.is_deep_equal (Current)
		end

	is_equal (other: KL_PLATFORM): BOOLEAN
			-- Is other attached to an object considered
			-- equal to current object?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			symmetric: Result implies other ~ Current
			consistent: standard_is_equal (other) implies Result
		end

	frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are a and b either both void or attached to
			-- field-by-field identical objects of the same type?
			-- Always uses default object comparison criterion.
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.standard_is_equal (b)
			end
		ensure -- from ANY
			instance_free: class
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b))
		end

	frozen standard_is_equal (other: KL_PLATFORM): BOOLEAN
			-- Is other attached to an object of the same type
			-- as current object, and field-by-field identical to it?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			same_type: Result implies same_type (other)
			symmetric: Result implies other.standard_is_equal (Current)
		end
	
feature -- Status report

	conforms_to (other: ANY): BOOLEAN
			-- Does type of current object conform to type
			-- of other (as per Eiffel: The Language, chapter 13)?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		end

	same_type (other: ANY): BOOLEAN
			-- Is type of current object identical to type of other?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			definition: Result = (conforms_to (other) and other.conforms_to (Current))
		end
	
feature -- Duplication

	frozen clone (other: detachable ANY): like other
		obsolete "Use `twin' instead. [2017-05-31]"
			-- Void if other is void; otherwise new object
			-- equal to other
			--
			-- For non-void other, clone calls copy;
			-- to change copying/cloning semantics, redefine copy.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.twin
			end
		ensure -- from ANY
			instance_free: class
			equal: Result ~ other
		end

	copy (other: KL_PLATFORM)
			-- Update current object using fields of object attached
			-- to other, so as to yield equal objects.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_equal: Current ~ other
		end

	frozen deep_clone (other: detachable ANY): like other
		obsolete "Use `deep_twin' instead. [2017-05-31]"
			-- Void if other is void: otherwise, new object structure
			-- recursively duplicated from the one attached to other
			-- (from ANY)
		do
			if other /= Void then
				Result := other.deep_twin
			end
		ensure -- from ANY
			instance_free: class
			deep_equal: deep_equal (other, Result)
		end

	frozen deep_copy (other: KL_PLATFORM)
			-- Effect equivalent to that of:
			--		copy (other . deep_twin)
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		do
			copy (other.deep_twin)
		ensure -- from ANY
			deep_equal: deep_equal (Current, other)
		end

	frozen deep_twin: KL_PLATFORM
			-- New object structure recursively duplicated from Current.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			deep_twin_not_void: Result /= Void
			deep_equal: deep_equal (Current, Result)
		end

	frozen standard_clone (other: detachable ANY): like other
		obsolete "Use `standard_twin' instead. [2017-05-31]"
			-- Void if other is void; otherwise new object
			-- field-by-field identical to other.
			-- Always uses default copying semantics.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.standard_twin
			end
		ensure -- from ANY
			instance_free: class
			equal: standard_equal (Result, other)
		end

	frozen standard_copy (other: KL_PLATFORM)
			-- Copy every field of other onto corresponding field
			-- of current object.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_standard_equal: standard_is_equal (other)
		end

	frozen standard_twin: KL_PLATFORM
			-- New object field-by-field identical to other.
			-- Always uses default copying semantics.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			standard_twin_not_void: Result /= Void
			equal: standard_equal (Result, Current)
		end

	frozen twin: KL_PLATFORM
			-- New object equal to Current
			-- twin calls copy; to change copying/twinning semantics, redefine copy.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			twin_not_void: Result /= Void
			is_equal: Result ~ Current
		end
	
feature -- Basic operations

	frozen as_attached: attached KL_PLATFORM
		obsolete "Remove calls to this feature. [2017-05-31]"
			-- Attached version of Current.
			-- (Can be used during transitional period to convert
			-- non-void-safe classes to void-safe ones.)
			-- (from ANY)
		do
			Result := Current
		end

	frozen default: detachable KL_PLATFORM
			-- Default value of object's type
			-- (from ANY)
		do
		end

	frozen default_pointer: POINTER
			-- Default value of type POINTER
			-- (Avoid the need to write p.default for
			-- some p of type POINTER.)
			-- (from ANY)
		do
		ensure -- from ANY
			instance_free: class
		end

	default_rescue
			-- Process exception for routines with no Rescue clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end

	frozen do_nothing
			-- Execute a null action.
			-- (from ANY)
		do
		ensure -- from ANY
			instance_free: class
		end
	
feature {NONE} -- Access bits size

	old_boolean_bits: INTEGER_32
			-- Number of bits in a value of type BOOLEAN
			-- (from PLATFORM)
		do
			Result := old_boolean_bytes * 8
		ensure -- from PLATFORM
			instance_free: class
		end

	Character_32_bits: INTEGER_32 = 32
			-- Number of bits in a value of type CHARACTER_32
			-- (from PLATFORM)

	Character_8_bits: INTEGER_32 = 8
			-- Number of bits in a value of type CHARACTER_8
			-- (from PLATFORM)

	Integer_16_bits: INTEGER_32 = 16
			-- Number of bits in a value of type INTEGER_16
			-- (from PLATFORM)

	Old_integer_bits: INTEGER_32 = 32
			-- Number of bits in a value of type INTEGER_32
			-- (from PLATFORM)

	Integer_64_bits: INTEGER_32 = 64
			-- Number of bits in a value of type INTEGER_64
			-- (from PLATFORM)

	Integer_8_bits: INTEGER_32 = 8
			-- Number of bits in a value of type INTEGER_8
			-- (from PLATFORM)

	Natural_16_bits: INTEGER_32 = 16
			-- Number of bits in a value of type NATURAL_16
			-- (from PLATFORM)

	Natural_32_bits: INTEGER_32 = 32
			-- Number of bits in a value of type NATURAL_32
			-- (from PLATFORM)

	Natural_64_bits: INTEGER_32 = 64
			-- Number of bits in a value of type NATURAL_64
			-- (from PLATFORM)

	Natural_8_bits: INTEGER_32 = 8
			-- Number of bits in a value of type NATURAL_8
			-- (from PLATFORM)

	old_pointer_bits: INTEGER_32
			-- Number of bits in a value of type POINTER
			-- (from PLATFORM)
		do
			Result := old_pointer_bytes * 8
		ensure -- from PLATFORM
			instance_free: class
		end

	Old_real_bits: INTEGER_32 = 32
			-- Number of bits in a value of type REAL_32
			-- (from PLATFORM)

	Old_double_bits: INTEGER_32 = 64
			-- Number of bits in a value of type REAL_64
			-- (from PLATFORM)
	
feature {NONE} -- Access bytes size

	old_boolean_bytes: INTEGER_32
			-- Number of bytes in a value of type BOOLEAN
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	Character_32_bytes: INTEGER_32 = 4
			-- Number of bytes in a value of type CHARACTER_32
			-- (from PLATFORM)

	Character_8_bytes: INTEGER_32 = 1
			-- Number of bytes in a value of type CHARACTER_8
			-- (from PLATFORM)

	Integer_16_bytes: INTEGER_32 = 2
			-- Number of bytes in a value of type INTEGER_16
			-- (from PLATFORM)

	Old_integer_bytes: INTEGER_32 = 4
			-- Number of bytes in a value of type INTEGER_32
			-- (from PLATFORM)

	Integer_64_bytes: INTEGER_32 = 8
			-- Number of bytes in a value of type INTEGER_64
			-- (from PLATFORM)

	Integer_8_bytes: INTEGER_32 = 1
			-- Number of bytes in a value of type INTEGER_8
			-- (from PLATFORM)

	Natural_16_bytes: INTEGER_32 = 2
			-- Number of bytes in a value of type NATURAL_16
			-- (from PLATFORM)

	Natural_32_bytes: INTEGER_32 = 4
			-- Number of bytes in a value of type NATURAL_32
			-- (from PLATFORM)

	Natural_64_bytes: INTEGER_32 = 8
			-- Number of bytes in a value of type NATURAL_64
			-- (from PLATFORM)

	Natural_8_bytes: INTEGER_32 = 1
			-- Number of bytes in a value of type NATURAL_8
			-- (from PLATFORM)

	old_pointer_bytes: INTEGER_32
			-- Number of bytes in a value of type POINTER
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	Old_real_bytes: INTEGER_32 = 4
			-- Number of bytes in a value of type REAL_32
			-- (from PLATFORM)

	Old_double_bytes: INTEGER_32 = 8
			-- Number of bytes in a value of type REAL_64
			-- (from PLATFORM)
	
feature -- Bits

	Boolean_bits: INTEGER_32
			-- Number of bits in a value of type BOOLEAN
		once
			Result := old_boolean_bits
		ensure -- from KI_PLATFORM
			instance_free: class
			large_enough: Result >= 1
		end

	Byte_bits: INTEGER_32 = 8
			-- Number of bits in a byte
			-- (from KI_PLATFORM)

	Character_bits: INTEGER_32
			-- Number of bits in a value of type CHARACTER
		once
			Result := 8
		ensure -- from KI_PLATFORM
			instance_free: class
			more_than_byte: Result >= Byte_bits
		end

	Double_bits: INTEGER_32
			-- Number of bits in a value of type DOUBLE
		once
			Result := Old_double_bits
		ensure -- from KI_PLATFORM
			instance_free: class
			more_than_real: Result >= Real_bits
		end

	Integer_bits: INTEGER_32
			-- Number of bits in a value of type INTEGER
		once
			Result := Old_integer_bits
		ensure -- from KI_PLATFORM
			instance_free: class
			more_than_character: Result >= Character_bits
		end

	Pointer_bits: INTEGER_32
			-- Number of bits in a value of type POINTER
		once
			Result := old_pointer_bits
		ensure -- from KI_PLATFORM
			instance_free: class
		end

	Real_bits: INTEGER_32
			-- Number of bits in a value of type REAL
		once
			Result := Old_real_bits
		ensure -- from KI_PLATFORM
			instance_free: class
		end
	
feature -- Bytes

	Boolean_bytes: INTEGER_32
			-- Number of bytes in a value of type BOOLEAN
		once
			Result := old_boolean_bytes
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
		end

	Byte_bytes: INTEGER_32 = 1
			-- Number of bytes in a byte
			-- (from KI_PLATFORM)

	Character_bytes: INTEGER_32
			-- Number of bytes in a value of type CHARACTER
		once
			Result := 1
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
			more_than_byte: Result >= Byte_bytes
		end

	Double_bytes: INTEGER_32
			-- Number of bytes in a value of type DOUBLE
		once
			Result := Old_double_bytes
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
			more_than_real: Result >= Real_bytes
		end

	Integer_bytes: INTEGER_32
			-- Number of bytes in a value of type INTEGER
		once
			Result := Old_integer_bytes
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
			more_than_character: Result >= Character_bytes
		end

	Pointer_bytes: INTEGER_32
			-- Number of bytes in a value of type POINTER
		once
			Result := old_pointer_bytes
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
		end

	Real_bytes: INTEGER_32
			-- Number of bytes in a value of type REAL
		once
			Result := Old_real_bytes
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 1
		end
	
feature {NONE} -- Obsoletes

	old_character_bits: INTEGER_32
		obsolete "Use `character_8_bits' instead. [2017-05-31]"
			-- Number of bits in a value of type CHARACTER_8
			-- (from PLATFORM)
		do
			Result := 8
		ensure -- from PLATFORM
			instance_free: class
		end

	old_character_bytes: INTEGER_32
		obsolete "Use `character_8_bytes' instead. [2017-05-31]"
			-- Number of bytes in a value of type CHARACTER_8
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	old_obsolete_double_bits: INTEGER_32
		obsolete "Use `real_64_bits' instead. [2017-05-31]"
			-- Number of bits in a value of type REAL_64
			-- (from PLATFORM)
		do
			Result := 64
		ensure -- from PLATFORM
			instance_free: class
		end

	old_obsolete_double_bytes: INTEGER_32
		obsolete "Use `real_64_bytes' instead. [2017-05-31]"
			-- Number of bytes in a value of type REAL_64
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	old_obsolete_integer_bits: INTEGER_32
		obsolete "Use `integer_32_bits' instead. [2017-05-31]"
			-- Number of bits in a value of type INTEGER_32
			-- (from PLATFORM)
		do
			Result := 32
		ensure -- from PLATFORM
			instance_free: class
		end

	old_obsolete_integer_bytes: INTEGER_32
		obsolete "Use `integer_32_bytes' instead. [2017-05-31]"
			-- Number of bytes in a value of type INTEGER_32
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	old_maximum_character_code: INTEGER_32
		obsolete "Use `{CHARACTER}.max_value' instead. [2017-05-31]"
			-- Largest supported code for CHARACTER_8 values
			-- (from PLATFORM)
		do
			Result := {CHARACTER_8}.max_value
		ensure -- from PLATFORM
			instance_free: class
			meaningful: Result >= 127
		end

	old_maximum_integer: INTEGER_32
		obsolete "Use `{INTEGER}.max_value' instead. [2017-05-31]"
			-- Largest supported value of type INTEGER_32
			-- (from PLATFORM)
		do
			Result := {INTEGER_32}.max_value
		ensure -- from PLATFORM
			instance_free: class
			meaningful: Result >= 0
		end

	old_minimum_character_code: INTEGER_32
		obsolete "Use `{CHARACTER}.min_value' instead. [2017-05-31]"
			-- Smallest supported code for CHARACTER_8 values
			-- (from PLATFORM)
		do
			Result := {CHARACTER_8}.min_value
		ensure -- from PLATFORM
			instance_free: class
			meaningful: Result <= 0
		end

	old_minimum_integer: INTEGER_32
		obsolete "Use `{INTEGER}.min_value' instead. [2017-05-31]"
			-- Smallest supported value of type INTEGER_32
			-- (from PLATFORM)
		do
			Result := {INTEGER_32}.min_value
		ensure -- from PLATFORM
			instance_free: class
			meaningful: Result <= 0
		end

	old_obsolete_real_bits: INTEGER_32
		obsolete "Use `real_32_bits' instead. [2017-05-31]"
			-- Number of bits in a value of type REAL_32
			-- (from PLATFORM)
		do
			Result := 32
		ensure -- from PLATFORM
			instance_free: class
		end

	old_obsolete_real_bytes: INTEGER_32
		obsolete "Use `real_32_bytes' instead. [2017-05-31]"
			-- Number of bytes in a value of type REAL_32
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	wide_character_bytes: INTEGER_32
		obsolete "Use `character_32_bytes' instead. [2017-05-31]"
			-- Number of bytes in a value of type CHARACTER_32
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end
	
feature -- Output

	Io: STD_FILES
			-- Handle to standard file setup
			-- (from ANY)
		once
			create Result
			Result.set_output_default
		ensure -- from ANY
			instance_free: class
			io_not_void: Result /= Void
		end

	out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		do
			Result := tagged_out
		ensure -- from ANY
			out_not_void: Result /= Void
		end

	print (o: detachable ANY)
			-- Write terse external representation of o
			-- on standard output.
			-- (from ANY)
		do
			if o /= Void then
				Io.put_string (o.out)
			end
		ensure -- from ANY
			instance_free: class
		end

	frozen tagged_out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			tagged_out_not_void: Result /= Void
		end
	
feature -- Platform

	Operating_environment: OPERATING_ENVIRONMENT
			-- Objects available from the operating system
			-- (from ANY)
		once
			create Result
		ensure -- from ANY
			instance_free: class
			operating_environment_not_void: Result /= Void
		end
	
feature {NONE} -- Platform

	is_64_bits: BOOLEAN
			-- Is the current process runing in 64-bit mode
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_dotnet: BOOLEAN
			-- Are we targetting .NET?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	Is_little_endian: BOOLEAN
			-- Is current platform a little endian one?
			-- (from PLATFORM)
		local
			l_nat16: NATURAL_16
			l_nat8: NATURAL_8
			l_first: NATURAL_8
		once
			l_nat16 := 17185
			l_nat8 := 33;
			($l_first).memory_copy ($l_nat16.to_pointer, 1)
			Result := l_first = l_nat8
		ensure -- from PLATFORM
			instance_free: class
		end

	is_mac: BOOLEAN
			-- Are we running on Mac OS?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_scoop_capable: BOOLEAN
			-- Is current platform capable of SCOOP?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_thread_capable: BOOLEAN
			-- Is current platform capable of multi-threading?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_unix: BOOLEAN
			-- Are we running on a Unix like platform?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_vms: BOOLEAN
			-- Are we running on VMS?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_vxworks: BOOLEAN
			-- Are we running on VxWorks?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end

	is_windows: BOOLEAN
			-- Are we running on Windows platform?
			-- (from PLATFORM)
		external
			"built_in static"
		ensure -- from PLATFORM
			instance_free: class
		end
	
feature {NONE} -- Retrieval

	frozen internal_correct_mismatch
			-- Called from runtime to perform a proper dynamic dispatch on correct_mismatch
			-- from MISMATCH_CORRECTOR.
			-- (from ANY)
		local
			l_msg: STRING_8
			l_exc: EXCEPTIONS
		do
			if attached {MISMATCH_CORRECTOR} Current as l_corrector then
				l_corrector.correct_mismatch
			else
				create l_msg.make_from_string ("Mismatch: ")
				create l_exc
				l_msg.append (generating_type.name)
				l_exc.raise_retrieval_exception (l_msg)
			end
		end
	
feature -- Values

	Maximum_byte_code: INTEGER_32 = 255
			-- Largest supported code for a byte
			-- (from KI_PLATFORM)

	Maximum_character_code: INTEGER_32
			-- Largest supported code for CHARACTER values
		once
			Result := {CHARACTER_8}.max_value
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= Maximum_byte_code
		end

	Maximum_integer: INTEGER_32
			-- Largest supported value of type INTEGER
		once
			Result := {INTEGER_32}.max_value
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 0
			definition: Result = - (Minimum_integer + 1)
		end

	Maximum_integer_64: INTEGER_64
			-- Largest supported value of type INTEGER_64
		once
			Result := 9223372036854775807
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result >= 0
			definition: Result = - (Minimum_integer_64 + 1)
		end

	Minimum_byte_code: INTEGER_32 = 0
			-- Smallest supported code for a byte
			-- (from KI_PLATFORM)

	Minimum_character_code: INTEGER_32
			-- Smallest supported code for CHARACTER values
		once
			Result := {CHARACTER_8}.min_value
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result = 0
		end

	Minimum_integer: INTEGER_32
			-- Smallest supported value of type INTEGER
		once
			Result := {INTEGER_32}.min_value
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result <= 0
			definition: Result.to_double = (2 ^ (Integer_bits - 2).to_double) * -2.to_double
		end

	Minimum_integer_64: INTEGER_64
			-- Smallest supported value of type INTEGER_64
		once
			Result := -9223372036854775808
		ensure -- from KI_PLATFORM
			instance_free: class
			meaningful: Result <= 0
		end
	
invariant
		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

end -- class KL_PLATFORM

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