source: XIOS/trunk/src/interface/fortran/duration_interface.F90 @ 575

Last change on this file since 575 was 545, checked in by rlacroix, 9 years ago

Expose the calendar operations through the Fortran interface.

  • Add arithmetic operations on the xios_duration and xios_date types:
    • xios_duration + xios_duration = xios_duration
    • xios_duration - xios_duration = xios_duration
    • scalar * xios_duration = xios_duration * scalar = xios_duration
    • - xios_duration = xios_duration
    • xios_date + xios_duration = xios_date
    • xios_date - xios_duration = xios_date
    • xios_date - xios_date = xios_duration
  • Add comparison operations on the xios_duration and xios_date types:
    • xios_duration: ==, /=
    • xios_date: ==, /=, <, <=, >, >=
  • Add a new function "xios_date_convert_to_seconds" to convert a date into the number of seconds since the time origin of the calendar
  • Define some constant durations "xios_second", "xios_minute", "xios_hour", "xios_day", "xios_month", "xios_year" et "xios_timestep" to ease the definition of new durations (for example, 10h is just 10 * xios_hour)
  • Add a new function "xios_set_calendar" so that one can manually create the calendar attached to the current context and thus use the calendar operations before calling "xios_close_context_definition". This function can accept optional parameters so that the calendar attributes (calendar_type, start_date, time_origin and timestep) can be easily overwritten. Note that you cannot define a new calendar after one was already created (either because "xios_set_calendar" or "xios_close_context_definition" was used)
  • Readd the function "xios_set_timestep" as a simplified alias of "xios_set_context_attr(context, timestep)" for the current context
File size: 1.8 KB
Line 
1#include "../fortran/xios_fortran_prefix.hpp"
2
3MODULE DURATION_INTERFACE
4   USE, INTRINSIC :: ISO_C_BINDING
5
6   TYPE, BIND(C) :: txios(duration)
7      REAL(kind = C_DOUBLE) :: year=0, month=0, day=0, hour=0, minute=0, second=0, timestep=0
8   END TYPE txios(duration)
9     
10   INTERFACE ! Ne pas appeler directement/Interface FORTRAN 2003 <-> C99
11
12      TYPE(txios(duration)) FUNCTION cxios_duration_add(dur1, dur2) BIND(C)
13         USE ISO_C_BINDING
14         IMPORT :: txios(duration)
15         TYPE(txios(duration)), VALUE :: dur1, dur2
16      END FUNCTION cxios_duration_add
17
18      TYPE(txios(duration)) FUNCTION cxios_duration_sub(dur1, dur2) BIND(C)
19         USE ISO_C_BINDING
20         IMPORT :: txios(duration)
21         TYPE(txios(duration)), VALUE :: dur1, dur2
22      END FUNCTION cxios_duration_sub
23
24      TYPE(txios(duration)) FUNCTION cxios_duration_mult(val, dur) BIND(C)
25         USE ISO_C_BINDING
26         IMPORT :: txios(duration)
27         REAL(kind = C_DOUBLE), VALUE :: val
28         TYPE(txios(duration)), VALUE :: dur
29      END FUNCTION cxios_duration_mult
30
31      TYPE(txios(duration)) FUNCTION cxios_duration_neg(dur) BIND(C)
32         USE ISO_C_BINDING
33         IMPORT :: txios(duration)
34         TYPE(txios(duration)), VALUE :: dur
35      END FUNCTION cxios_duration_neg
36
37      LOGICAL(kind = C_BOOL) FUNCTION cxios_duration_eq(dur1, dur2) BIND(C)
38         USE ISO_C_BINDING
39         IMPORT :: txios(duration)
40         TYPE(txios(duration)), VALUE :: dur1, dur2
41      END FUNCTION cxios_duration_eq
42
43      LOGICAL(kind = C_BOOL) FUNCTION cxios_duration_neq(dur1, dur2) BIND(C)
44         USE ISO_C_BINDING
45         IMPORT :: txios(duration)
46         TYPE(txios(duration)), VALUE :: dur1, dur2
47      END FUNCTION cxios_duration_neq
48
49   END INTERFACE
50     
51END MODULE DURATION_INTERFACE
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