+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- G N A T . C A L E N D A R --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1999-2001 Free Software Foundation, Inc. --
--- --
--- GNAT is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This package extends Ada.Calendar to handle Hour, Minute, Second,
--- Second_Duration and Day_Of_Week and Day_In_Year from Calendar.Time.
--- Second_Duration precision depends on the target clock precision.
---
--- GNAT.Calendar provides the same kind of abstraction found in
--- Ada.Calendar. It provides Split and Time_Of to build and split a Time
--- data. And it provides accessor functions to get only one of Hour, Minute,
--- Second, Second_Duration. Other functions are to access more advanced
--- valueas like Day_Of_Week, Day_In_Year and Week_In_Year.
-
-with Ada.Calendar;
-with Interfaces.C;
-
-package GNAT.Calendar is
-
- type Day_Name is
- (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday);
-
- subtype Hour_Number is Natural range 0 .. 23;
- subtype Minute_Number is Natural range 0 .. 59;
- subtype Second_Number is Natural range 0 .. 59;
- subtype Second_Duration is Ada.Calendar.Day_Duration range 0.0 .. 1.0;
- subtype Day_In_Year_Number is Positive range 1 .. 366;
- subtype Week_In_Year_Number is Positive range 1 .. 53;
-
- function Hour (Date : Ada.Calendar.Time) return Hour_Number;
- function Minute (Date : Ada.Calendar.Time) return Minute_Number;
- function Second (Date : Ada.Calendar.Time) return Second_Number;
- function Sub_Second (Date : Ada.Calendar.Time) return Second_Duration;
- -- Hour, Minute, Sedond and Sub_Second returns the complete time data for
- -- the Date (H:M:S.SS). See Ada.Calendar for Year, Month, Day accessors.
- -- Second_Duration precision depends on the target clock precision.
-
- function Day_Of_Week (Date : Ada.Calendar.Time) return Day_Name;
- -- Return the day name.
-
- function Day_In_Year (Date : Ada.Calendar.Time) return Day_In_Year_Number;
- -- Returns the day number in the year. (1st January is day 1 and 31st
- -- December is day 365 or 366 for leap year).
-
- function Week_In_Year (Date : Ada.Calendar.Time) return Week_In_Year_Number;
- -- Returns the week number in the year with Monday as first day of week
-
- procedure Split
- (Date : Ada.Calendar.Time;
- Year : out Ada.Calendar.Year_Number;
- Month : out Ada.Calendar.Month_Number;
- Day : out Ada.Calendar.Day_Number;
- Hour : out Hour_Number;
- Minute : out Minute_Number;
- Second : out Second_Number;
- Sub_Second : out Second_Duration);
- -- Split the standard Ada.Calendar.Time data in date data (Year, Month,
- -- Day) and Time data (Hour, Minute, Second, Sub_Second)
-
- function Time_Of
- (Year : Ada.Calendar.Year_Number;
- Month : Ada.Calendar.Month_Number;
- Day : Ada.Calendar.Day_Number;
- Hour : Hour_Number;
- Minute : Minute_Number;
- Second : Second_Number;
- Sub_Second : Second_Duration := 0.0)
- return Ada.Calendar.Time;
- -- Returns an Ada.Calendar.Time data built from the date and time values.
-
- -- C timeval conversion
-
- -- C timeval represent a duration (used in Select for example). This
- -- structure is composed of a number of seconds and a number of micro
- -- seconds. The timeval structure is not exposed here because its
- -- definition is target dependent. Interface to C programs is done via a
- -- pointer to timeval structure.
-
- type timeval is private;
-
- function To_Duration (T : access timeval) return Duration;
- function To_Timeval (D : Duration) return timeval;
-
-private
- -- This is a dummy declaration that should be the largest possible timeval
- -- structure of all supported targets.
-
- type timeval is array (1 .. 2) of Interfaces.C.long;
-
- function Julian_Day
- (Year : Ada.Calendar.Year_Number;
- Month : Ada.Calendar.Month_Number;
- Day : Ada.Calendar.Day_Number)
- return Integer;
- -- Compute Julian day number.
- --
- -- The code of this function is a modified version of algorithm
- -- 199 from the Collected Algorithms of the ACM.
- -- The author of algorithm 199 is Robert G. Tantzen.
-end GNAT.Calendar;
projects / msp430-gcc.git / blobdiff