Re: CVS commit: src/bin/sleep

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Fri, Jan 25, 2019 at 20:59:56 +0700, Robert Elz wrote:

> What other commands take floating point args on the command line
> (aside from awk assignments to vars, which are certainly intended to
> be locale specific) I'm not sure I can think of one.

I think printf(1) comes closest.

http://pubs.opengroup.org/onlinepubs/7908799/xcu/printf.html

 The argument operands [...] will be evaluated as a C constant, as
 described by the ISO C standard, with the following extensions:

    - A leading plus or minus sign will be allowed.

    - If the leading character is a single- or double-quote, the value
      will be the numeric value in the underlying codeset of the
      character following the single- or double-quote.

Linux:

  $ LC_NUMERIC=C /usr/bin/printf '%f\n' 3.14
  3.140000
  $ LC_NUMERIC=C /usr/bin/printf '%f\n' 3,14
  /usr/bin/printf: '3,14': value not completely converted
  3.000000

  $ LC_NUMERIC=ru_RU.UTF-8  /usr/bin/printf '%f\n' 3.14
  3,140000
  $ LC_NUMERIC=ru_RU.UTF-8  /usr/bin/printf '%f\n' 3,14
  /usr/bin/printf: '3,141': value not completely converted
  3,000000


NetBSD:

  $ LC_NUMERIC=C /usr/bin/printf '%f\n' 3.14
  3.140000
  $ LC_NUMERIC=C /usr/bin/printf '%f\n' 3,14
  printf: 3,14: not completely converted
  3.000000

  $ LC_NUMERIC=ru_RU.UTF-8  /usr/bin/printf '%f\n' 3.14
  printf: 3.14: not completely converted
  3,000000
  $ LC_NUMERIC=ru_RU.UTF-8  /usr/bin/printf '%f\n' 3,14
  3,140000


So NetBSD printf has the same problem.

-uwe