61 lines
2.5 KiB
Diff
61 lines
2.5 KiB
Diff
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From 06283613f8e6e81053444fea0cfc441db9c776a9 Mon Sep 17 00:00:00 2001
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From: Karl Williamson <khw@cpan.org>
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Date: Fri, 20 Dec 2019 14:40:47 -0700
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Subject: [PATCH] POSIX.pod: Update setlocale() docs
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This should have been updated in 5.28, but was overlooked.
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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ext/POSIX/lib/POSIX.pod | 24 +++++++++++++++---------
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1 file changed, 15 insertions(+), 9 deletions(-)
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diff --git a/ext/POSIX/lib/POSIX.pod b/ext/POSIX/lib/POSIX.pod
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index cab1501dab..d0b7f5ade2 100644
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--- a/ext/POSIX/lib/POSIX.pod
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+++ b/ext/POSIX/lib/POSIX.pod
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@@ -1451,14 +1451,18 @@ see L<perlfunc/eval>.
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=item C<setlocale>
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-WARNING! Do NOT use this function in a L<thread|threads>. The locale
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-will change in all other threads at the same time, and should your
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-thread get paused by the operating system, and another started, that
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-thread will not have the locale it is expecting. On some platforms,
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-there can be a race leading to segfaults if two threads call this
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-function nearly simultaneously.
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-
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-Modifies and queries the program's underlying locale. Users of this
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+WARNING! Prior to Perl 5.28 or on a system that does not support
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+thread-safe locale operations, do NOT use this function in a
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+L<thread|threads>. The locale will change in all other threads at the
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+same time, and should your thread get paused by the operating system,
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+and another started, that thread will not have the locale it is
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+expecting. On some platforms, there can be a race leading to segfaults
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+if two threads call this function nearly simultaneously. On unthreaded
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+builds, or on Perl 5.28 and later on thread-safe systems, this warning
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+does not apply.
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+
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+This function
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+modifies and queries the program's underlying locale. Users of this
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function should read L<perllocale>, whch provides a comprehensive
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discussion of Perl locale handling, knowledge of which is necessary to
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properly use this function. It contains
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@@ -1466,7 +1470,9 @@ L<a section devoted to this function|perllocale/The setlocale function>.
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The discussion here is merely a summary reference for C<setlocale()>.
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Note that Perl itself is almost entirely unaffected by the locale
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except within the scope of S<C<"use locale">>. (Exceptions are listed
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-in L<perllocale/Not within the scope of "use locale">.)
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+in L<perllocale/Not within the scope of "use locale">, and
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+locale-dependent functions within the POSIX module ARE always affected
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+by the current locale.)
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The following examples assume
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--
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2.21.1
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