Generate and return the total number of days in the specified year or the month of the year of the Gregorian calendar. More...

Detailed Description

Generate and return the total number of days in the specified year or the month of the year of the Gregorian calendar.

The correct computation of the number of days in a year or a number of years requires taking into account the leap years.

Parameters

[in]	year	: The input scalar or array of the same shape as other array-like input arguments, of type `integer` of default kind IK, representing the year of the Gregorian Calendar.
[in]	month	: The input scalar or array of the same shape as other array-like input arguments, of type `integer` of default kind IK, representing the month of the year of the Gregorian Calendar. (optional, if present, the number of days within the specified `month` of the `year` will be returned.)

Returns: countDays : The output scalar or array of the same shape as other array-like arguments of type integer of default kind IK, containing the number of days within the specified year (or within the specified month of the year).

Possible calling interfaces ⛓

: use pm_dateTime, only: getCountDays

use pm_kind, only: IK

integer(IK) :: countDaysInYear

integer(IK) :: countDaysInMonthOfYear

countDaysInYear = getCountDays(year)

countDaysInMonthOfYear = getCountDays(year, month)

pm_dateTime::getCountDays
Generate and return the total number of days in the specified year or the month of the year of the Gr...
Definition: pm_dateTime.F90:3628

pm_dateTime
This module contains classes and procedures for computing, manipulating, and styling dates and times.
Definition: pm_dateTime.F90:308

pm_kind
This module defines the relevant Fortran kind type-parameters frequently used in the ParaMonte librar...
Definition: pm_kind.F90:268

pm_kind::IK
integer, parameter IK
The default integer kind in the ParaMonte library: int32 in Fortran, c_int32_t in C-Fortran Interoper...
Definition: pm_kind.F90:540

Warning: An input argument year = 0 corresponds to the historic 1 BC notation of the Gregorian calendar.
This is in accordance with the convention in astronomical year numbering and the international standard date system, ISO 8601.
The input argument month must be a number between 1 and 12.
These conditions are verified only if the library is built with the preprocessor macro CHECK_ENABLED=1.; The pure procedure(s) documented herein become impure when the ParaMonte library is compiled with preprocessor macro CHECK_ENABLED=1.
By default, these procedures are pure in release build and impure in debug and testing builds.

Remarks: The procedures under discussion are elemental.

See also: dateTimeInt_typer (class constructor)
dateTimeStr_type

Example usage ⛓

: 1program example

2

3 use pm_kind, only: SK, IK

4 use pm_io, only: display_type

5 use pm_dateTime, only: getCountDays

6 use pm_dateTime, only: isLeapYear

7 use pm_dateTime, only: getMonth

8 use pm_dateTime, only: getYear

9

10 implicit none

11

12 integer(IK), allocatable :: Year(:)

13 type(display_type) :: disp

14 disp = display_type(file = "main.out.F90")

15

16 call disp%skip()

17 call disp%show("!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%")

18 call disp%show("! Get the count of days in a given year of the Gregorian calendar.")

19 call disp%show("!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%")

20 call disp%skip()

21

22 call disp%skip()

23 call disp%show("getYear()")

24 call disp%show( getYear() )

25 call disp%show("isLeapYear(getYear())")

26 call disp%show( isLeapYear(getYear()) )

27 call disp%show("getCountDays(getYear())")

28 call disp%show( getCountDays(getYear()) )

29 call disp%skip()

30

31 call disp%skip()

32 call disp%show("isLeapYear(2000_IK)")

33 call disp%show( isLeapYear(2000_IK) )

34 call disp%show("getCountDays(2000_IK)")

35 call disp%show( getCountDays(2000_IK) )

36 call disp%skip()

37

38 call disp%skip()

39 call disp%show("isLeapYear(2024_IK)")

40 call disp%show( isLeapYear(2024_IK) )

41 call disp%show("getCountDays(2024_IK)")

42 call disp%show( getCountDays(2024_IK) )

43 call disp%skip()

44

45 call disp%skip()

46 call disp%show("Year = [1_IK, 2_IK, 3_IK, 4_IK]")

47 Year = [1_IK, 2_IK, 3_IK, 4_IK]

48 call disp%show("Year")

49 call disp%show( Year )

50 call disp%show("isLeapYear(Year)")

51 call disp%show( isLeapYear(Year) )

52 call disp%show("getCountDays(Year)")

53 call disp%show( getCountDays(Year) )

54 call disp%skip()

55

56 call disp%skip()

57 call disp%show("Year = -[1_IK, 2_IK, 3_IK, 4_IK]")

58 Year = -[1_IK, 2_IK, 3_IK, 4_IK]

59 call disp%show("Year")

60 call disp%show( Year )

61 call disp%show("isLeapYear(Year)")

62 call disp%show( isLeapYear(Year) )

63 call disp%show("getCountDays(Year)")

64 call disp%show( getCountDays(Year) )

65 call disp%skip()

66

67 call disp%skip()

68 call disp%show("!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%")

69 call disp%show("! Get the count of days in a given month of a given year of the Gregorian calendar.")

70 call disp%show("!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%")

71 call disp%skip()

72

73 call disp%skip()

74 call disp%show("getYear()")

75 call disp%show( getYear() )

76 call disp%show("getMonth()")

77 call disp%show( getMonth() )

78 call disp%show("isLeapYear(getYear())")

79 call disp%show( isLeapYear(getYear()) )

80 call disp%show("getCountDays(getYear(), getMonth())")

81 call disp%show( getCountDays(getYear(), getMonth()) )

82 call disp%skip()

83

84 call disp%skip()

85 call disp%show("isLeapYear(2000_IK)")

86 call disp%show( isLeapYear(2000_IK) )

87 call disp%show("getCountDays(2000_IK, 2_IK)")

88 call disp%show( getCountDays(2000_IK, 2_IK) )

89 call disp%skip()

90

91 call disp%skip()

92 call disp%show("isLeapYear(2024_IK)")

93 call disp%show( isLeapYear(2024_IK) )

94 call disp%show("getCountDays(2024_IK, 2_IK)")

95 call disp%show( getCountDays(2024_IK, 2_IK) )

96 call disp%skip()

97

98 call disp%skip()

99 call disp%show("Year = [1_IK, 2_IK, 3_IK, 4_IK]")

100 Year = [1_IK, 2_IK, 3_IK, 4_IK]

101 call disp%show("Year")

102 call disp%show( Year )

103 call disp%show("isLeapYear(Year)")

104 call disp%show( isLeapYear(Year) )

105 call disp%show("getCountDays(Year, 2_IK)")

106 call disp%show( getCountDays(Year, 2_IK) )

107 call disp%skip()

108

109 call disp%skip()

110 call disp%show("Year = -[1_IK, 2_IK, 3_IK, 4_IK]")

111 Year = -[1_IK, 2_IK, 3_IK, 4_IK]

112 call disp%show("Year")

113 call disp%show( Year )

114 call disp%show("isLeapYear(Year)")

115 call disp%show( isLeapYear(Year) )

116 call disp%show("getCountDays(Year, 2_IK)")

117 call disp%show( getCountDays(Year, 2_IK) )

118 call disp%skip()

119

120end program example

pm_io::show
This is a generic method of the derived type display_type with pass attribute.
Definition: pm_io.F90:11726

pm_io::skip
This is a generic method of the derived type display_type with pass attribute.
Definition: pm_io.F90:11508

pm_dateTime::getYear
integer(IK) function getYear()
Generate and return the current year of the Gregorian calendar.
Definition: pm_dateTime.F90:4777

pm_dateTime::isLeapYear
pure elemental logical(LK) function isLeapYear(year)
Generate and return .true. if the input year is a leap year.
Definition: pm_dateTime.F90:4280

pm_dateTime::getMonth
integer(IK) function getMonth()
Generate and return the current month of the Gregorian calendar.
Definition: pm_dateTime.F90:4717

pm_io
This module contains classes and procedures for input/output (IO) or generic display operations on st...
Definition: pm_io.F90:252

pm_io::disp
type(display_type) disp
This is a scalar module variable an object of type display_type for general display.
Definition: pm_io.F90:11393

pm_kind::SK
integer, parameter SK
The default character kind in the ParaMonte library: kind("a") in Fortran, c_char in C-Fortran Intero...
Definition: pm_kind.F90:539

pm_io::display_type
Generate and return an object of type display_type.
Definition: pm_io.F90:10282

Example Unix compile command via Intel ifort compiler ⛓
1#!/usr/bin/env sh

2rm main.exe

3ifort -fpp -standard-semantics -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe

4./main.exe

Example Windows Batch compile command via Intel ifort compiler ⛓
1del main.exe

2set PATH=..\..\..\lib;%PATH%

3ifort /fpp /standard-semantics /O3 /I:..\..\..\include main.F90 ..\..\..\lib\libparamonte*.lib /exe:main.exe

4main.exe

Example Unix / MinGW compile command via GNU gfortran compiler ⛓
1#!/usr/bin/env sh

2rm main.exe

3gfortran -cpp -ffree-line-length-none -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe

4./main.exe

Example output ⛓
1

2!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

3! Get the count of days in a given year of the Gregorian calendar.

4!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

5

6

7getYear()

8+2024

9isLeapYear(getYear())

10T

11getCountDays(getYear())

12+366

13

14

15isLeapYear(2000_IK)

16T

17getCountDays(2000_IK)

18+366

19

20

21isLeapYear(2024_IK)

22T

23getCountDays(2024_IK)

24+366

25

26

27Year = [1_IK, 2_IK, 3_IK, 4_IK]

28Year

29+1, +2, +3, +4

30isLeapYear(Year)

31F, F, F, T

32getCountDays(Year)

33+365, +365, +365, +366

34

35

36Year = -[1_IK, 2_IK, 3_IK, 4_IK]

37Year

38-1, -2, -3, -4

39isLeapYear(Year)

40F, F, F, T

41getCountDays(Year)

42+365, +365, +365, +366

43

44

45!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

46! Get the count of days in a given month of a given year of the Gregorian calendar.

47!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

48

49

50getYear()

51+2024

52getMonth()

53+11

54isLeapYear(getYear())

55T

56getCountDays(getYear(), getMonth())

57+30

58

59

60isLeapYear(2000_IK)

61T

62getCountDays(2000_IK, 2_IK)

63+29

64

65

66isLeapYear(2024_IK)

67T

68getCountDays(2024_IK, 2_IK)

69+29

70

71

72Year = [1_IK, 2_IK, 3_IK, 4_IK]

73Year

74+1, +2, +3, +4

75isLeapYear(Year)

76F, F, F, T

77getCountDays(Year, 2_IK)

78+28, +28, +28, +29

79

80

81Year = -[1_IK, 2_IK, 3_IK, 4_IK]

82Year

83-1, -2, -3, -4

84isLeapYear(Year)

85F, F, F, T

86getCountDays(Year, 2_IK)

87+28, +28, +28, +29

88

89

Test:: test_pm_dateTime

Final Remarks ⛓

If you believe this algorithm or its documentation can be improved, we appreciate your contribution and help to edit this page's documentation and source file on GitHub.
For details on the naming abbreviations, see this page.
For details on the naming conventions, see this page.
This software is distributed under the MIT license with additional terms outlined below.

If you use any parts or concepts from this library to any extent, please acknowledge the usage by citing the relevant publications of the ParaMonte library.
If you regenerate any parts/ideas from this library in a programming environment other than those currently supported by this ParaMonte library (i.e., other than C, C++, Fortran, MATLAB, Python, R), please also ask the end users to cite this original ParaMonte library.

This software is available to the public under a highly permissive license.
Help us justify its continued development and maintenance by acknowledging its benefit to society, distributing it, and contributing to it.

Copyright: Computational Data Science Lab

Author:: Amir Shahmoradi, March 22, 2012, 00:00 AM, National Institute for Fusion Studies, The University of Texas Austin

Definition at line 3628 of file pm_dateTime.F90.

The documentation for this interface was generated from the following file:

src/fortran/main/pm_dateTime.F90