note description: "Platform-dependent properties." library: "Free implementation of ELKS library" status: "See notice at end of class." legal: "See notice at end of class." date: "$Date: 2020-05-19 14:29:33 +0000 (Tue, 19 May 2020) $" revision: "$Revision: 104259 $" class interface PLATFORM create default_create -- Process instances of classes with no creation clause. -- (Default: do nothing.) -- (from ANY) feature -- Access generating_type: TYPE [detachable PLATFORM] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty 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) 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) 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) 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)) frozen is_deep_equal alias "≡≡≡" (other: PLATFORM): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void 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) is_equal (other: PLATFORM): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result 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) 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)) frozen standard_is_equal alias "≜" (other: 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 ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) 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 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 ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Duplication copy (other: 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) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: PLATFORM) -- Effect equivalent to that of: -- copy (other . deep_twin) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: PLATFORM -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: 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) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: PLATFORM -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: PLATFORM -- New object equal to Current -- twin calls copy; to change copying/twinning semantics, redefine copy. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable PLATFORM -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.default for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class feature -- Access bits size boolean_bits: INTEGER_32 -- Number of bits in a value of type BOOLEAN ensure instance_free: class Character_32_bits: INTEGER_32 = 32 -- Number of bits in a value of type CHARACTER_32 Character_8_bits: INTEGER_32 = 8 -- Number of bits in a value of type CHARACTER_8 Integer_16_bits: INTEGER_32 = 16 -- Number of bits in a value of type INTEGER_16 Integer_32_bits: INTEGER_32 = 32 -- Number of bits in a value of type INTEGER_32 Integer_64_bits: INTEGER_32 = 64 -- Number of bits in a value of type INTEGER_64 Integer_8_bits: INTEGER_32 = 8 -- Number of bits in a value of type INTEGER_8 Natural_16_bits: INTEGER_32 = 16 -- Number of bits in a value of type NATURAL_16 Natural_32_bits: INTEGER_32 = 32 -- Number of bits in a value of type NATURAL_32 Natural_64_bits: INTEGER_32 = 64 -- Number of bits in a value of type NATURAL_64 Natural_8_bits: INTEGER_32 = 8 -- Number of bits in a value of type NATURAL_8 pointer_bits: INTEGER_32 -- Number of bits in a value of type POINTER ensure instance_free: class Real_32_bits: INTEGER_32 = 32 -- Number of bits in a value of type REAL_32 Real_64_bits: INTEGER_32 = 64 -- Number of bits in a value of type REAL_64 feature -- Access bytes size boolean_bytes: INTEGER_32 -- Number of bytes in a value of type BOOLEAN ensure instance_free: class Character_32_bytes: INTEGER_32 = 4 -- Number of bytes in a value of type CHARACTER_32 Character_8_bytes: INTEGER_32 = 1 -- Number of bytes in a value of type CHARACTER_8 Integer_16_bytes: INTEGER_32 = 2 -- Number of bytes in a value of type INTEGER_16 Integer_32_bytes: INTEGER_32 = 4 -- Number of bytes in a value of type INTEGER_32 Integer_64_bytes: INTEGER_32 = 8 -- Number of bytes in a value of type INTEGER_64 Integer_8_bytes: INTEGER_32 = 1 -- Number of bytes in a value of type INTEGER_8 Natural_16_bytes: INTEGER_32 = 2 -- Number of bytes in a value of type NATURAL_16 Natural_32_bytes: INTEGER_32 = 4 -- Number of bytes in a value of type NATURAL_32 Natural_64_bytes: INTEGER_32 = 8 -- Number of bytes in a value of type NATURAL_64 Natural_8_bytes: INTEGER_32 = 1 -- Number of bytes in a value of type NATURAL_8 pointer_bytes: INTEGER_32 -- Number of bytes in a value of type POINTER ensure instance_free: class Real_32_bytes: INTEGER_32 = 4 -- Number of bytes in a value of type REAL_32 Real_64_bytes: INTEGER_32 = 8 -- Number of bytes in a value of type REAL_64 feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform is_64_bits: BOOLEAN -- Is the current process runing in 64-bit mode ensure instance_free: class is_dotnet: BOOLEAN -- Are we targetting .NET? ensure instance_free: class Is_little_endian: BOOLEAN -- Is current platform a little endian one? ensure instance_free: class is_mac: BOOLEAN -- Are we running on Mac OS? ensure instance_free: class is_scoop_capable: BOOLEAN -- Is current platform capable of SCOOP? ensure instance_free: class is_thread_capable: BOOLEAN -- Is current platform capable of multi-threading? ensure instance_free: class is_unix: BOOLEAN -- Are we running on a Unix like platform? ensure instance_free: class is_vms: BOOLEAN -- Are we running on VMS? ensure instance_free: class is_vxworks: BOOLEAN -- Are we running on VxWorks? ensure instance_free: class is_windows: BOOLEAN -- Are we running on Windows platform? ensure instance_free: class Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2020, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end -- class PLATFORM
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