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note description: "[ To easily manage allocation and release of allocated C memory, and to perform insertion of basic elements. Byte order is by default platform specific. Although memory allocation routines do not accept a zero sized pointer MANAGED_POINTER does by allocating in fact a 1 byte sized pointer for this particular case. ]" 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 06:29:33 -0800 (Tue, 19 May 2020) $" revision: "$Revision: 104259 $" class interface MANAGED_POINTER create make (n: INTEGER_32) -- Allocate item with n bytes. require n_non_negative: n >= 0 ensure item_set: item /= default_pointer count_set: count = n is_shared_set: not is_shared make_from_array (data: ARRAY [NATURAL_8]) -- Allocate item with data.count bytes and copy -- content of data into item. require data_not_void: data /= Void ensure item_set: item /= default_pointer count_set: count = data.count is_shared_set: not is_shared make_from_pointer (a_ptr: POINTER; n: INTEGER_32) -- Copy a_count bytes from a_ptr into current. require a_ptr_not_null: a_ptr /= default_pointer n_non_negative: n >= 0 ensure item_set: item /= default_pointer count_set: count = n is_shared_set: not is_shared share_from_pointer (a_ptr: POINTER; n: INTEGER_32) -- Use directly a_ptr with count n to hold current data. require a_ptr_valid: a_ptr = default_pointer implies n = 0 n_non_negative: n >= 0 ensure item_set: item = a_ptr count_set: count = n is_shared_set: is_shared own_from_pointer (a_ptr: POINTER; n: INTEGER_32) -- Use directly a_ptr with count n to hold current data and free -- its associated C memory when Current is collected. -- It assumes that a_ptr was allocated using the C-malloc routine and thus -- will be freed by calling the C-free routine. require a_ptr_valid: a_ptr /= default_pointer n_non_negative: n >= 0 ensure item_set: item = a_ptr count_set: count = n is_shared_set: not is_shared feature -- Access count: INTEGER_32 -- Number of elements that Current can hold. generating_type: TYPE [detachable MANAGED_POINTER] -- 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 is_shared: BOOLEAN -- Is item shared with another memory area? item: POINTER note option: transient 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: MANAGED_POINTER): 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: like Current): BOOLEAN -- Is other attached to an object considered equal to current object? 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: MANAGED_POINTER): 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 -- Resizing resize (n: INTEGER_32) -- Reallocate item to hold n bytes. require n_non_negative: n >= 0 not_shared: not is_shared feature -- Duplication copy (other: like Current) -- Update current object using fields of object attached -- to other, so as to yield equal objects. If is_shared -- and current is not large enough to hold other create -- a new pointer area and is_shared is set to False. require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other ensure then sharing_status_not_preserved: (other /= Current) implies (old is_shared implies not is_shared) count_preserved: count = other.count frozen deep_copy (other: MANAGED_POINTER) -- 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: MANAGED_POINTER -- 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: MANAGED_POINTER) -- 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: MANAGED_POINTER -- 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: MANAGED_POINTER -- 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 MANAGED_POINTER -- 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 -- (from PLATFORM) ensure -- from PLATFORM instance_free: class 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) Integer_32_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) pointer_bits: INTEGER_32 -- Number of bits in a value of type POINTER -- (from PLATFORM) ensure -- from PLATFORM instance_free: class Real_32_bits: INTEGER_32 = 32 -- Number of bits in a value of type REAL_32 -- (from PLATFORM) Real_64_bits: INTEGER_32 = 64 -- Number of bits in a value of type REAL_64 -- (from PLATFORM) feature -- Access bytes size boolean_bytes: INTEGER_32 -- Number of bytes in a value of type BOOLEAN -- (from PLATFORM) ensure -- from PLATFORM instance_free: class 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) Integer_32_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) pointer_bytes: INTEGER_32 -- Number of bytes in a value of type POINTER -- (from PLATFORM) ensure -- from PLATFORM instance_free: class Real_32_bytes: INTEGER_32 = 4 -- Number of bytes in a value of type REAL_32 -- (from PLATFORM) Real_64_bytes: INTEGER_32 = 8 -- Number of bytes in a value of type REAL_64 -- (from PLATFORM) feature -- Access: Big-endian format read_integer_16_be (pos: INTEGER_32): INTEGER_16 -- Read INTEGER_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count read_integer_32_be (pos: INTEGER_32): INTEGER_32 -- Read INTEGER at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count read_integer_64_be (pos: INTEGER_32): INTEGER_64 -- Read INTEGER_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count read_integer_8_be (pos: INTEGER_32): INTEGER_8 -- Read INTEGER_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count read_natural_16_be (pos: INTEGER_32): NATURAL_16 -- Read NATURAL_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count read_natural_32_be (pos: INTEGER_32): NATURAL_32 -- Read NATURAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count read_natural_64_be (pos: INTEGER_32): NATURAL_64 -- Read NATURAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count read_natural_8_be (pos: INTEGER_32): NATURAL_8 -- Read NATURAL_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count read_real_32_be (pos: INTEGER_32): REAL_32 -- Read REAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count read_real_64_be (pos: INTEGER_32): REAL_64 -- Read REAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count feature -- Access: Little-endian format read_integer_16_le (pos: INTEGER_32): INTEGER_16 -- Read INTEGER_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count read_integer_32_le (pos: INTEGER_32): INTEGER_32 -- Read INTEGER at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count read_integer_64_le (pos: INTEGER_32): INTEGER_64 -- Read INTEGER_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count read_integer_8_le (pos: INTEGER_32): INTEGER_8 -- Read INTEGER_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count read_natural_16_le (pos: INTEGER_32): NATURAL_16 -- Read NATURAL_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count read_natural_32_le (pos: INTEGER_32): NATURAL_32 -- Read NATURAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count read_natural_64_le (pos: INTEGER_32): NATURAL_64 -- Read NATURAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count read_natural_8_le (pos: INTEGER_32): NATURAL_8 -- Read NATURAL_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count read_real_32_le (pos: INTEGER_32): REAL_32 -- Read REAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count read_real_64_le (pos: INTEGER_32): REAL_64 -- Read REAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count feature -- Access: Platform specific read_array (pos, a_count: INTEGER_32): ARRAY [NATURAL_8] -- Read count bytes at position pos. require pos_nonnegative: pos >= 0 count_positive: a_count > 0 valid_position: (pos + a_count) <= count ensure read_array_not_void: Result /= Void read_array_valid_count: Result.count = a_count read_boolean (pos: INTEGER_32): BOOLEAN -- Read BOOLEAN at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + boolean_bytes) <= count read_character (pos: INTEGER_32): CHARACTER_8 -- Read CHARACTER at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Character_8_bytes) <= count read_integer_16 (pos: INTEGER_32): INTEGER_16 -- Read INTEGER_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count read_integer_32 (pos: INTEGER_32): INTEGER_32 -- Read INTEGER at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count read_integer_64 (pos: INTEGER_32): INTEGER_64 -- Read INTEGER_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count read_integer_8 (pos: INTEGER_32): INTEGER_8 -- Read INTEGER_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count read_into_special_character_8 (a_spec: SPECIAL [CHARACTER_8]; source_index, destination_index, n: INTEGER_32) -- Read n bytes of Current from position source_index and store them in a_spec at destination_index. require a_spec_not_void: a_spec /= Void source_index_non_negative: source_index >= 0 destination_index_non_negative: destination_index >= 0 destination_index_in_bound: destination_index <= a_spec.count n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= count n_is_small_enough_for_destination: destination_index + n <= a_spec.count read_into_special_natural_8 (a_spec: SPECIAL [NATURAL_8]; source_index, destination_index, n: INTEGER_32) -- Read n bytes of Current from position source_index and store them in a_spec at destination_index. require a_spec_not_void: a_spec /= Void source_index_non_negative: source_index >= 0 destination_index_non_negative: destination_index >= 0 destination_index_in_bound: destination_index <= a_spec.count n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= count n_is_small_enough_for_destination: destination_index + n <= a_spec.count read_natural_16 (pos: INTEGER_32): NATURAL_16 -- Read NATURAL_16 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count read_natural_32 (pos: INTEGER_32): NATURAL_32 -- Read NATURAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count read_natural_64 (pos: INTEGER_32): NATURAL_64 -- Read NATURAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count read_natural_8 (pos: INTEGER_32): NATURAL_8 -- Read NATURAL_8 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count read_pointer (pos: INTEGER_32): POINTER -- Read POINTER at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + pointer_bytes) <= count read_real_32 (pos: INTEGER_32): REAL_32 -- Read REAL_32 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count read_real_64 (pos: INTEGER_32): REAL_64 -- Read REAL_64 at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count read_special_character_8 (source_index, n: INTEGER_32): SPECIAL [CHARACTER_8] -- Read n bytes of Current from position source_index. require source_index_non_negative: source_index >= 0 n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= count read_special_natural_8 (source_index, n: INTEGER_32): SPECIAL [NATURAL_8] -- Read n bytes of Current from position source_index. require source_index_non_negative: source_index >= 0 n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= count feature -- Concatenation append (other: like Current) -- Append other at the end of Current. require not_shared: not is_shared other_not_void: other /= Void feature -- Disposal dispose -- Release memory pointed by item. require -- from DISPOSABLE True ensure then shared_reset: not is_shared feature -- Element change: Big-endian format put_integer_16_be (i: INTEGER_16; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count ensure inserted: i = read_integer_16_be (pos) put_integer_32_be (i: INTEGER_32; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count ensure inserted: i = read_integer_32_be (pos) put_integer_64_be (i: INTEGER_64; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count ensure inserted: i = read_integer_64_be (pos) put_integer_8_be (i: INTEGER_8; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count ensure inserted: i = read_integer_8_be (pos) put_natural_16_be (i: NATURAL_16; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count ensure inserted: i = read_natural_16_be (pos) put_natural_32_be (i: NATURAL_32; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count ensure inserted: i = read_natural_32_be (pos) put_natural_64_be (i: NATURAL_64; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count ensure inserted: i = read_natural_64_be (pos) put_natural_8_be (i: NATURAL_8; pos: INTEGER_32) -- Insert i at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count ensure inserted: i = read_natural_8_be (pos) put_real_32_be (v: REAL_32; pos: INTEGER_32) -- Insert v at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count ensure inserted: v = read_real_32_be (pos) put_real_64_be (v: REAL_64; pos: INTEGER_32) -- Insert v at position pos in big-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count ensure inserted: v = read_real_64_be (pos) feature -- Element change: Little-endian format put_integer_16_le (i: INTEGER_16; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count ensure inserted: i = read_integer_16_le (pos) put_integer_32_le (i: INTEGER_32; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count ensure inserted: i = read_integer_32_le (pos) put_integer_64_le (i: INTEGER_64; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count ensure inserted: i = read_integer_64_le (pos) put_integer_8_le (i: INTEGER_8; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count ensure inserted: i = read_integer_8_le (pos) put_natural_16_le (i: NATURAL_16; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count ensure inserted: i = read_natural_16_le (pos) put_natural_32_le (i: NATURAL_32; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count ensure inserted: i = read_natural_32_le (pos) put_natural_64_le (i: NATURAL_64; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count ensure inserted: i = read_natural_64_le (pos) put_natural_8_le (i: NATURAL_8; pos: INTEGER_32) -- Insert i at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count ensure inserted: i = read_natural_8_le (pos) put_real_32_le (v: REAL_32; pos: INTEGER_32) -- Insert v at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count ensure inserted: v = read_real_32_le (pos) put_real_64_le (v: REAL_64; pos: INTEGER_32) -- Insert v at position pos in little-endian format. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count ensure inserted: v = read_real_64_le (pos) feature -- Element change: Platform specific put_array (data: ARRAY [NATURAL_8]; pos: INTEGER_32) -- Copy content of data into item at position pos. require data_not_void: data /= Void pos_nonnegative: pos >= 0 valid_position: (pos + data.count) <= count ensure inserted: read_array (pos, data.count) ~ data put_boolean (b: BOOLEAN; pos: INTEGER_32) -- Insert b at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + boolean_bytes) <= count ensure inserted: b = read_boolean (pos) put_character (c: CHARACTER_8; pos: INTEGER_32) -- Insert c at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Character_8_bytes) <= count ensure inserted: c = read_character (pos) put_integer_16 (i: INTEGER_16; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_16_bytes) <= count ensure inserted: i = read_integer_16 (pos) put_integer_32 (i: INTEGER_32; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_32_bytes) <= count ensure inserted: i = read_integer_32 (pos) put_integer_64 (i: INTEGER_64; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_64_bytes) <= count ensure inserted: i = read_integer_64 (pos) put_integer_8 (i: INTEGER_8; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Integer_8_bytes) <= count ensure inserted: i = read_integer_8 (pos) put_natural_16 (i: NATURAL_16; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_16_bytes) <= count ensure inserted: i = read_natural_16 (pos) put_natural_32 (i: NATURAL_32; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_32_bytes) <= count ensure inserted: i = read_natural_32 (pos) put_natural_64 (i: NATURAL_64; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_64_bytes) <= count ensure inserted: i = read_natural_64 (pos) put_natural_8 (i: NATURAL_8; pos: INTEGER_32) -- Insert i at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Natural_8_bytes) <= count ensure inserted: i = read_natural_8 (pos) put_pointer (p: POINTER; pos: INTEGER_32) -- Insert p at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + pointer_bytes) <= count ensure inserted: p = read_pointer (pos) put_real_32 (r: REAL_32; pos: INTEGER_32) -- Insert r at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_32_bytes) <= count ensure inserted: r = read_real_32 (pos) put_real_64 (d: REAL_64; pos: INTEGER_32) -- Insert d at position pos. require pos_nonnegative: pos >= 0 valid_position: (pos + Real_64_bytes) <= count ensure inserted: d = read_real_64 (pos) put_special_character_8 (a_spec: SPECIAL [CHARACTER_8]; source_index, destination_index, n: INTEGER_32) -- Write n bytes of a_spec from position source_index to Current at position destination_index. require a_spec_not_void: a_spec /= Void source_index_non_negative: source_index >= 0 destination_index_non_negative: destination_index >= 0 destination_index_in_bound: destination_index <= count n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= a_spec.count n_is_small_enough_for_destination: destination_index + n <= count ensure inserted: a_spec.same_items (read_special_character_8 (destination_index, n), 0, source_index, n) put_special_natural_8 (a_spec: SPECIAL [NATURAL_8]; source_index, destination_index, n: INTEGER_32) -- Write n bytes of a_spec from position source_index to Current at position destination_index. require a_spec_not_void: a_spec /= Void source_index_non_negative: source_index >= 0 destination_index_non_negative: destination_index >= 0 destination_index_in_bound: destination_index <= count n_non_negative: n >= 0 n_is_small_enough_for_source: source_index + n <= a_spec.count n_is_small_enough_for_destination: destination_index + n <= count ensure inserted: a_spec.same_items (read_special_natural_8 (destination_index, n), 0, source_index, n) 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 -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_dotnet: BOOLEAN -- Are we targetting .NET? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class Is_little_endian: BOOLEAN -- Is current platform a little endian one? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_mac: BOOLEAN -- Are we running on Mac OS? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_scoop_capable: BOOLEAN -- Is current platform capable of SCOOP? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_thread_capable: BOOLEAN -- Is current platform capable of multi-threading? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_unix: BOOLEAN -- Are we running on a Unix like platform? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_vms: BOOLEAN -- Are we running on VMS? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_vxworks: BOOLEAN -- Are we running on VxWorks? -- (from PLATFORM) ensure -- from PLATFORM instance_free: class is_windows: BOOLEAN -- Are we running on Windows platform? -- (from PLATFORM) ensure -- from PLATFORM 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 feature -- Settings set_from_pointer (a_ptr: POINTER; n: INTEGER_32) -- Use directly a_ptr with count n to hold current data. require is_shared: is_shared a_ptr_not_null: a_ptr = default_pointer implies n = 0 n_non_negative: n >= 0 ensure item_set: item = a_ptr count_set: count = n is_shared_unchanged: is_shared invariant item_not_null: item = default_pointer implies (count = 0 and is_shared) valid_count: count >= 0 -- 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 MANAGED_POINTER
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