From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: ***
X-Spam-Status: No, score=3.8 required=5.0 tests=BAYES_00,INVALID_MSGID,
	RATWARE_MS_HASH,RATWARE_OUTLOOK_NONAME autolearn=no autolearn_force=no
	version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,b1850e397df49d95
X-Google-Attributes: gid103376,public
From: "Jerry van Dijk" <jvandyk@ibm.net>
Subject: Re: How to convert an Fixed_Point to to an Integer ?
Date: 1996/12/27
Message-ID: <01bbf3d9$b7b0f120$f22d5c8b@jerryware>#1/1
X-Deja-AN: 206179102
references: <01bbf058$cbdbf980$LocalHost@jerryware>
 <1996Dec23.072835.1@eisner> <dewar.851351937@merv>
 <01bbf179$0c4361e0$9b2d5c8b@jerryware> <dewar.851441337@merv>
 <01bbf24c$a8db4800$b72d5c8b@jerryware> <dewar.851521881@merv>
 <32C2A408.53B8@watson.ibm.com>
organization: *JerryWare HQ*, Haarlem, Holland
newsgroups: comp.lang.ada
Date: 1996-12-27T00:00:00+00:00
List-Id: <comp.lang.ada>


Norman,

Norman H. Cohen <ncohen@watson.ibm.com> wrote in article
<32C2A408.53B8@watson.ibm.com>...

> slight complication, and this approach does not account for leap
> seconds, but I'm not sure how Unix systems deal with leap seconds
> either

Good question. My normal Unix bible (Stevens, 'Advanced programming in
the
Unix Enviroment, AW, 9th printing, july 1995) keeps almost silent about
it.

But on page 155 Stevens says:

	"struct tm {	/* a broken down time */
		int tm_sec;	/* Seconds after the minute: [0, 61] */
	...

	The reason that seconds can be greater than 59 is to allow for leap
	seconds."

And as the DJGPP info documents this fields as [0, 60] I am reasonable
convinced that leaps are taken care of in both systems.

> package Epoch is
> 
> 
>    -- Note: This package works from the beginning of 1970 until the
end of
>    --    2099, after which the package Ada.Calendar is no longer
usable.
>    --    During this period, a year y is a leap year if and only if y
> mod 4 = 0.

Gee, and I only asked about it... Thanks Norman!

Jerry,