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note description: "Absolute temporal values composed of a date and a time" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2020-05-19 06:45:25 -0800 (Tue, 19 May 2020) $" revision: "$Revision: 104270 $" access: date, time eis: "name=Obtaining a DATE from a DATE_TIME and vice versa", "src=$(ISE_DOC_UUID)/195849fc-1a9c-d734-2d2b-acae78133886#Obtaining_a_DATE_from_a_DATE_TIME_and_vice_versa", "tag=EiffelTime" eis: "name=DATE / TIME to STRING Conversion", "src=$(ISE_DOC_UUID)/88972ba4-694b-8558-b0c8-87b1fc40afc4", "tag=EiffelTime" class interface DATE_TIME create make (y, mo, d, h, mi, s: INTEGER_32) -- Set year, month day to y, mo, d. -- Set hour, minute, second to h, mi, s. require correct_date_time: is_correct_date_time (y, mo, d, h, mi, s.to_double, False) ensure year_set: year = y month_set: month = mo day_set: day = d hour_set: hour = h minute_set: minute = mi second_set: second = s make_fine (y, mo, d, h, mi: INTEGER_32; s: REAL_64) -- Set year, month day to y, mo, d. -- Set hour, minute, second to h, m, s. require correct_date_time: is_correct_date_time (y, mo, d, h, mi, s, False) ensure year_set: year = y month_set: month = mo day_set: day = d hour_set: hour = h minute_set: minute = mi second_set: fine_second = s make_by_date_time (d: DATE; t: TIME) -- Set date to d and time to t require d_exists: d /= Void t_exists: t /= Void ensure date_set: date = d time_set: time = t make_by_date (d: DATE) -- Set date to d and time to origin of time. require d_exists: d /= Void ensure date_set: date = d time_set: time.is_equal (time.Origin) make_now -- Get the date and the time from the system. make_now_utc -- Get the date and the time from the system. make_from_epoch (s: INTEGER_32) -- Create a new date time from the number of -- seconds since epoch (1 Jan 1970 at 00:00:00). make_from_string (s: READABLE_STRING_8; code: READABLE_STRING_8) -- Initialize from a "standard" string of form -- code. -- (For 2-digit year specifications, the current century is used as -- base century.) require s_exists: s /= Void c_exists: code /= Void date_time_valid: date_time_valid (s, code) make_from_string_with_base (s: READABLE_STRING_8; code: READABLE_STRING_8; base: INTEGER_32) -- Initialize from a "standard" string of form -- code with base century base. require s_exists: s /= Void c_exists: code /= Void base_valid: base > 0 and (base \\ 100 = 0) date_time_valid: date_time_valid_with_base (s, code, base) make_from_string_default (s: READABLE_STRING_8) -- Initialize from a "standard" string of form -- default_format_string. -- (For 2-digit year specifications, the current century is used as -- base century.) require s_exists: s /= Void date_time_valid: date_time_valid (s, default_format_string) make_from_string_default_with_base (s: READABLE_STRING_8; base: INTEGER_32) -- Initialize from a "standard" string of form -- default_format_string with base century base. require s_exists: s /= Void base_valid: base > 0 and (base \\ 100 = 0) date_time_valid: date_time_valid_with_base (s, default_format_string, base) feature -- Initialization make (y, mo, d, h, mi, s: INTEGER_32) -- Set year, month day to y, mo, d. -- Set hour, minute, second to h, mi, s. require correct_date_time: is_correct_date_time (y, mo, d, h, mi, s.to_double, False) ensure year_set: year = y month_set: month = mo day_set: day = d hour_set: hour = h minute_set: minute = mi second_set: second = s make_by_date (d: DATE) -- Set date to d and time to origin of time. require d_exists: d /= Void ensure date_set: date = d time_set: time.is_equal (time.Origin) make_by_date_time (d: DATE; t: TIME) -- Set date to d and time to t require d_exists: d /= Void t_exists: t /= Void ensure date_set: date = d time_set: time = t make_fine (y, mo, d, h, mi: INTEGER_32; s: REAL_64) -- Set year, month day to y, mo, d. -- Set hour, minute, second to h, m, s. require correct_date_time: is_correct_date_time (y, mo, d, h, mi, s, False) ensure year_set: year = y month_set: month = mo day_set: day = d hour_set: hour = h minute_set: minute = mi second_set: fine_second = s make_from_epoch (s: INTEGER_32) -- Create a new date time from the number of -- seconds since epoch (1 Jan 1970 at 00:00:00). make_from_string (s: READABLE_STRING_8; code: READABLE_STRING_8) -- Initialize from a "standard" string of form -- code. -- (For 2-digit year specifications, the current century is used as -- base century.) require s_exists: s /= Void c_exists: code /= Void date_time_valid: date_time_valid (s, code) make_from_string_default (s: READABLE_STRING_8) -- Initialize from a "standard" string of form -- default_format_string. -- (For 2-digit year specifications, the current century is used as -- base century.) require s_exists: s /= Void date_time_valid: date_time_valid (s, default_format_string) make_from_string_default_with_base (s: READABLE_STRING_8; base: INTEGER_32) -- Initialize from a "standard" string of form -- default_format_string with base century base. require s_exists: s /= Void base_valid: base > 0 and (base \\ 100 = 0) date_time_valid: date_time_valid_with_base (s, default_format_string, base) make_from_string_with_base (s: READABLE_STRING_8; code: READABLE_STRING_8; base: INTEGER_32) -- Initialize from a "standard" string of form -- code with base century base. require s_exists: s /= Void c_exists: code /= Void base_valid: base > 0 and (base \\ 100 = 0) date_time_valid: date_time_valid_with_base (s, code, base) make_now -- Get the date and the time from the system. make_now_utc -- Get the date and the time from the system. feature -- Access compact_time: INTEGER_32 -- Hour, minute, second coded. -- (from TIME_VALUE) date: DATE -- Date of the current object date_default_format_string: STRING_8 -- Default output format for dates -- (from DATE_CONSTANTS) date_duration: DATE_DURATION -- Definite duration between origin of date and current date Date_time_tools: DATE_TIME_TOOLS -- Tools for outputting dates and times in different formats -- (from TIME_UTILITY) day: INTEGER_32 -- Day of the current object -- (from DATE_TIME_MEASUREMENT) require -- from DATE_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_day: Result = date.day days: INTEGER_32 -- Number of days elapsed since Origin days_in_i_th_month (i, y: INTEGER_32): INTEGER_32 -- Number of days in the i th month at year y -- (from DATE_CONSTANTS) require -- from DATE_CONSTANTS i_large_enough: i >= 1 i_small_enough: i <= Months_in_year Days_in_leap_year: INTEGER_32 = 366 -- Number of days in a leap year -- (from DATE_CONSTANTS) Days_in_non_leap_year: INTEGER_32 = 365 -- Number of days in a non-leap year -- (from DATE_CONSTANTS) Days_in_week: INTEGER_32 = 7 -- Number of days in a week -- (from DATE_CONSTANTS) days_text: ARRAY [STRING_8] -- Short text representation of days -- (from DATE_CONSTANTS) default_format_string: STRING_8 -- Default output format string -- (from TIME_UTILITY) fine_second: REAL_64 -- Representation of second with decimals -- (from DATE_TIME_MEASUREMENT) require -- from TIME_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_fine_second: Result = time.fine_second fractional_second: REAL_64 -- Fractional part of fine_second -- (from TIME_VALUE) generating_type: TYPE [detachable DATE_TIME] -- 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 hour: INTEGER_32 -- Hour of the current object -- (from DATE_TIME_MEASUREMENT) require -- from TIME_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_hour: Result = time.hour Hours_in_day: INTEGER_32 = 24 -- Number of hours in a day -- (from TIME_CONSTANTS) long_days_text: ARRAY [STRING_8] -- Long text representation of days -- (from DATE_CONSTANTS) long_months_text: ARRAY [STRING_8] -- Long text representation of months -- (from DATE_CONSTANTS) Max_weeks_in_year: INTEGER_32 = 53 -- Maximun number of weeks in a year -- (from DATE_CONSTANTS) micro_second: INTEGER_32 -- Microsecond of the current time -- (from TIME_VALUE) milli_second: INTEGER_32 -- Millisecond of the current time -- (from TIME_VALUE) minute: INTEGER_32 -- Minute of the current object -- (from DATE_TIME_MEASUREMENT) require -- from TIME_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_minute: Result = time.minute Minutes_in_hour: INTEGER_32 = 60 -- Number of minutes in an hour -- (from TIME_CONSTANTS) month: INTEGER_32 -- Month of the current object -- (from DATE_TIME_MEASUREMENT) require -- from DATE_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_month: Result = date.month Months_in_year: INTEGER_32 = 12 -- Number of months in year -- (from DATE_CONSTANTS) months_text: ARRAY [STRING_8] -- Short text representation of months -- (from DATE_CONSTANTS) nano_second: INTEGER_32 -- Nanosecond of the current time -- (from TIME_VALUE) ordered_compact_date: INTEGER_32 -- Year, month, day coded for fast comparison between dates. -- (from DATE_VALUE) Origin: DATE_TIME -- Origin date with origin time ensure -- from ABSOLUTE result_exists: Result /= Void second: INTEGER_32 -- Second of the current object -- (from DATE_TIME_MEASUREMENT) require -- from TIME_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_second: Result = time.second seconds: INTEGER_32 -- Number of seconds elapsed from midnight of the current date Seconds_in_day: INTEGER_32 = 86400 -- Number of seconds in an hour -- (from TIME_CONSTANTS) Seconds_in_hour: INTEGER_32 = 3600 -- Number of seconds in an hour -- (from TIME_CONSTANTS) Seconds_in_minute: INTEGER_32 = 60 -- Number of seconds in a minute -- (from TIME_CONSTANTS) time: TIME -- Time of the current object time_default_format_string: STRING_8 -- Default output format for times -- (from TIME_CONSTANTS) time_duration: TIME_DURATION -- Duration elapsed from midnight of the current date year: INTEGER_32 -- Year of the current object -- (from DATE_TIME_MEASUREMENT) require -- from DATE_MEASUREMENT True ensure -- from DATE_TIME_MEASUREMENT same_year: Result = date.year feature -- Measurement duration: DATE_TIME_DURATION -- Definite duration elapsed from Origin require -- from ABSOLUTE True ensure then definite_result: Result.definite 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: DATE_TIME): 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 the current object equal to other? require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result ensure then -- from COMPARABLE trichotomy: Result = (not (Current < other) and not (other < Current)) is_greater alias ">" (other: DATE_TIME): BOOLEAN -- Is current object greater than other? -- (from COMPARABLE) require -- from PART_COMPARABLE other_exists: other /= Void ensure then -- from COMPARABLE definition: Result = (other < Current) is_greater_equal alias ">=" alias "" (other: DATE_TIME): BOOLEAN -- Is current object greater than or equal to other? -- (from COMPARABLE) require -- from PART_COMPARABLE other_exists: other /= Void ensure then -- from COMPARABLE definition: Result = (other <= Current) is_less alias "<" (other: like Current): BOOLEAN -- Is the current object before other? require -- from PART_COMPARABLE other_exists: other /= Void ensure then -- from COMPARABLE asymmetric: Result implies not (other < Current) is_less_equal alias "<=" alias "" (other: DATE_TIME): BOOLEAN -- Is current object less than or equal to other? -- (from COMPARABLE) require -- from PART_COMPARABLE other_exists: other /= Void ensure then -- from COMPARABLE definition: Result = ((Current < other) or (Current ~ other)) max alias "" (other: DATE_TIME): DATE_TIME -- The greater of current object and other -- (from COMPARABLE) require -- from COMPARABLE other_exists: other /= Void ensure -- from COMPARABLE current_if_not_smaller: Current >= other implies Result = Current other_if_smaller: Current < other implies Result = other min alias "" (other: DATE_TIME): DATE_TIME -- The smaller of current object and other -- (from COMPARABLE) require -- from COMPARABLE other_exists: other /= Void ensure -- from COMPARABLE current_if_not_greater: Current <= other implies Result = Current other_if_greater: Current > other implies Result = other 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: DATE_TIME): 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) three_way_comparison alias "" (other: DATE_TIME): INTEGER_32 -- If current object equal to other, 0; -- if smaller, -1; if greater, 1 -- (from COMPARABLE) require -- from COMPARABLE other_exists: other /= Void ensure -- from COMPARABLE equal_zero: (Result = 0) = (Current ~ other) smaller_negative: (Result = -1) = (Current < other) greater_positive: (Result = 1) = (Current > other) 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 is_leap_year (y: INTEGER_32): BOOLEAN -- Is year y a leap year? -- (from DATE_CONSTANTS) 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 -- Element change set_compact_date (y, m, d: INTEGER_32) -- Set year with y, month with m and day with d. -- (from DATE_VALUE) require -- from DATE_MEASUREMENT d_large_enough: d >= 1 m_large_enough: m >= 1 m_small_enough: m <= Months_in_year d_small_enough: d <= days_in_i_th_month (m, y) ensure -- from DATE_MEASUREMENT day_set: day = d month_set: month = m year_set: year = y set_day (d: INTEGER_32) -- Set day to d. -- (from DATE_VALUE) require -- from DATE_MEASUREMENT d_large_enough: d >= 1 d_small_enough: d <= days_in_month ensure -- from DATE_MEASUREMENT day_set: day = d set_fine_second (s: REAL_64) -- Set fine_second to s -- (from TIME_VALUE) require -- from TIME_MEASUREMENT s_large_enough: s >= 0.to_double s_small_enough: s < Seconds_in_minute.to_double ensure -- from TIME_MEASUREMENT fine_second_set: fine_second = s set_fractionals (f: REAL_64) -- Set fractional_second to f. -- (from TIME_VALUE) require -- from TIME_MEASUREMENT f_large_enough: f >= 0.to_double f_small_enough: f < 1.to_double ensure -- from TIME_MEASUREMENT second_same: second = old second set_hour (h: INTEGER_32) -- Set hour to h. -- (from TIME_VALUE) require -- from TIME_MEASUREMENT h_large_enough: h >= 0 h_small_enough: h < Hours_in_day ensure -- from TIME_MEASUREMENT hour_set: hour = h set_internal_ordered_compact_date (a_ordered_compact_date: like ordered_compact_date) -- Set a_ordered_compact_date to ordered_compact_date. -- (from DATE_VALUE) ensure -- from DATE_VALUE ordered_compact_date_set: ordered_compact_date = a_ordered_compact_date set_minute (m: INTEGER_32) -- Set minute to m. -- (from TIME_VALUE) require -- from TIME_MEASUREMENT m_large_enough: m >= 0 m_small_enough: m < Minutes_in_hour ensure -- from TIME_MEASUREMENT minute_set: minute = m set_month (m: INTEGER_32) -- Set month to m. -- (from DATE_VALUE) require -- from DATE_MEASUREMENT m_large_enough: m >= 1 m_small_enough: m <= Months_in_year d_small_enough: day <= days_in_i_th_month (m, year) ensure -- from DATE_MEASUREMENT month_set: month = m set_second (s: INTEGER_32) -- Set second to s. -- (from TIME_VALUE) require -- from TIME_MEASUREMENT s_large_enough: s >= 0 s_small_enough: s < Seconds_in_minute ensure -- from TIME_MEASUREMENT second_set: second = s set_year (y: INTEGER_32) -- Set year to y. -- (from DATE_VALUE) require -- from DATE_MEASUREMENT can_not_cut_29th_feb: day <= days_in_i_th_month (month, y) ensure -- from DATE_MEASUREMENT year_set: year = y feature -- Duplication frozen deep_copy (other: DATE_TIME) -- 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: DATE_TIME -- 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: DATE_TIME) -- 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: DATE_TIME -- 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: DATE_TIME -- 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 add (dtd: DATE_TIME_DURATION) -- Adds dtd to current duration require dtd_not_void: dtd /= Void day_add (d: INTEGER_32) -- Add d days to the current date. ensure days_set: days = old days + d frozen default: detachable DATE_TIME -- 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) definite_duration (other: like Current): DATE_TIME_DURATION -- Duration from other to the current date, converted to a -- definite duration require other_exists: other /= Void ensure definite_result: Result.definite div (i, j: INTEGER_32): INTEGER_32 -- (i \\ j) if i positive -- (i \\ j + 1) if i negative -- (from TIME_UTILITY) ensure -- from TIME_UTILITY result_definition: i = j * Result + mod (i, j) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class fine_second_add (s: REAL_64) -- Add s seconds to the current object. -- if s has decimals, fractional_second from time is modified. hour_add (h: INTEGER_32) -- Add h hours to the current time. minus alias "-" (other: DATE_TIME): INTERVAL [DATE_TIME] -- Interval between current object and other. -- (from ABSOLUTE) require -- from ABSOLUTE other_exists: other /= Void other_smaller_than_current: other <= Current ensure -- from ABSOLUTE result_exists: Result /= Void result_set: Result.start_bound.is_equal (other) and then Result.end_bound.is_equal (Current) minute_add (m: INTEGER_32) -- Add m minutes to the current time. mod (i, j: INTEGER_32): INTEGER_32 -- (i \\ j) if i positive -- (i \\ j + j) if i negative -- (from TIME_UTILITY) ensure -- from TIME_UTILITY positive_result: Result >= 0 result_definition: i = j * div (i, j) + Result plus alias "+" (d: DATE_TIME_DURATION): like Current -- Sum the current object with d require d_not_void: d /= Void ensure result_exists: Result /= Void relative_duration (other: like Current): DATE_TIME_DURATION -- Duration from other to current date require -- from ABSOLUTE other_exists: other /= Void ensure -- from ABSOLUTE result_exists: Result /= Void ensure then origin_set: equal (other, Result.origin_date_time) second_add (s: INTEGER_32) -- Add s seconds to the current time. feature -- Correction correct_mismatch -- Attempt to correct object mismatch using Mismatch_information. -- (from DATE_VALUE) Mismatch_information: MISMATCH_INFORMATION -- Original attribute values of mismatched object -- (from MISMATCH_CORRECTOR) feature -- Element Change copy (other: like Current) -- set date and time with the other attributes. require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other set_date (d: DATE) -- Set date to d. require d_exists: d /= Void ensure date_set: date = d set_time (t: TIME) -- Set time to t. require t_exists: t /= Void ensure time_set: time = t feature -- Output debug_output: STRING_8 -- Printable representation of the current object -- With "standard" form: default_format_string -- Was declared in DATE_TIME as synonym of out. ensure -- from DEBUG_OUTPUT result_not_void: Result /= Void formatted_out (s: READABLE_STRING_8): STRING_8 -- Printable representation of the current object -- With "standard" form: s require s_exists: s /= Void Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- Printable representation of the current object -- With "standard" form: default_format_string -- Was declared in DATE_TIME as synonym of debug_output. 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 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 -- Preconditions compact_time_valid (c_t: INTEGER_32): BOOLEAN -- Is compact time c_t valid? -- (from TIME_VALIDITY_CHECKER) date_time_valid (s: READABLE_STRING_8; code_string: READABLE_STRING_8): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE_TIME -- And does the string s correspond to code_string? -- (from DATE_TIME_VALIDITY_CHECKER) require -- from DATE_TIME_VALIDITY_CHECKER s_exists: s /= Void code_exists: code_string /= Void date_time_valid_with_base (s: READABLE_STRING_8; code_string: READABLE_STRING_8; base: INTEGER_32): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE_TIME -- And does the string s correspond to code_string? -- Use base century base. -- (from DATE_TIME_VALIDITY_CHECKER) require -- from DATE_TIME_VALIDITY_CHECKER s_exists: s /= Void code_exists: code_string /= Void base_valid: base > 0 and (base \\ 100 = 0) date_valid (s: READABLE_STRING_8; code_string: READABLE_STRING_8): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE -- And does the string s correspond to code_string? -- (from DATE_VALIDITY_CHECKER) require -- from DATE_VALIDITY_CHECKER s_exists: s /= Void code_exists: code_string /= Void ensure -- from DATE_VALIDITY_CHECKER class date_valid_default (s: READABLE_STRING_8): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE -- And does the string s correspond to -- date_default_format_string? -- (from DATE_VALIDITY_CHECKER) require -- from DATE_VALIDITY_CHECKER s_exists: s /= Void date_valid_default_with_base (s: READABLE_STRING_8; base: INTEGER_32): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE -- And does the string s correspond to -- date_default_format_string? -- Use base century base. -- (from DATE_VALIDITY_CHECKER) require -- from DATE_VALIDITY_CHECKER s_exists: s /= Void base_valid: base > 0 and (base \\ 100 = 0) date_valid_with_base (s: READABLE_STRING_8; code_string: READABLE_STRING_8; base: INTEGER_32): BOOLEAN -- Is the code_string enough precise -- To create an instance of type DATE -- And does the string s correspond to code_string? -- Use base century base. -- (from DATE_VALIDITY_CHECKER) require -- from DATE_VALIDITY_CHECKER s_exists: s /= Void code_exists: code_string /= Void base_valid: base > 0 and (base \\ 100 = 0) is_correct_date (y, m, d: INTEGER_32): BOOLEAN -- Is date specified by y, m, and d a correct date? -- (from DATE_VALIDITY_CHECKER) is_correct_date_time (y, mo, d, h, mi: INTEGER_32; s: REAL_64; twelve_hour_scale: BOOLEAN): BOOLEAN -- Is date-time specified by y, mo, d, h, mi, s -- correct? -- twelve_hour_scale specifies if the hour range is 1 - 12 -- (if True) or 0 - 23 (if False). -- (from DATE_TIME_VALIDITY_CHECKER) is_correct_time (h, m: INTEGER_32; s: REAL_64; twelve_hour_scale: BOOLEAN): BOOLEAN -- Is time represented by h, m, code, and s correct? -- twelve_hour_scale specifies if the hour range is 1 - 12 -- (if True) or 0 - 23 (if False). -- (from TIME_VALIDITY_CHECKER) ordered_compact_date_valid (c_d: INTEGER_32): BOOLEAN -- Is compact date c_d valid? -- (from DATE_VALIDITY_CHECKER) time_valid (s: READABLE_STRING_8; code_string: READABLE_STRING_8): BOOLEAN -- Is the code_string enough precise -- to create an instance of type TIME? -- And does the string s correspond to code_string? -- (from TIME_VALIDITY_CHECKER) require -- from TIME_VALIDITY_CHECKER s_exists: s /= Void code_exists: code_string /= Void feature -- Status Report days_in_month: INTEGER_32 -- Number of days in month 'month'. -- (from DATE_MEASUREMENT) ensure -- from DATE_MEASUREMENT positive_result: Result > 0 invariant -- from COMPARABLE irreflexive_comparison: not (Current < Current) -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) -- from DATE_TIME_MEASUREMENT date_exists: date /= Void time_exists: time /= Void note ca_ignore: "CA011", "CA011: too many arguments" 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 DATE_TIME
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