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Re: Add sleep builtin

From: L A Walsh
Subject: Re: Add sleep builtin
Date: Mon, 27 Aug 2018 14:25:21 -0700
User-agent: Thunderbird

On 8/27/2018 11:54 AM, Robert Elz wrote:
    From:        L A Walsh

  | POSIX moved away from their original mission statement of being
  | "descriptive" to one that is "prescriptive" a long time ago

I don't think that's true - certainly not as much as other (related)
standards (like those for C etc).
The C standard was never based on a mission statement of being
only "descriptive".  There was no expectation of it not changing.

If the POSIX standard had merely remained 'descriptive' it wouldn't
have been a problem.  However, it changed to be 'prescriptive'.  Other
standards, especially things like the 'C' standard were always meant to be

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