Re: [PATCH 02/12] tzset: state vars unspecified if geographical TZ
From: Alejandro Colomar <alx@kernel.org>
Date: 2024-06-11 20:53:05
Hi Paul, On Tue, Jun 11, 2024 at 08:29:05AM GMT, Paul Eggert wrote:
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--- man/man3/tzset.3 | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)diff --git a/man/man3/tzset.3 b/man/man3/tzset.3 index 8479b17b0..6e89dd530 100644 --- a/man/man3/tzset.3 +++ b/man/man3/tzset.3@@ -63,6 +63,11 @@ In a System-V-like environment, it will also set the variables \fItimezone\fP have any daylight saving time rules, or to nonzero if there is a time, past, present, or future when daylight saving time applies). .P +The +.BR tzset () +function initializes these variables to unspecified values if this
Can you confirm that the wording is precise? If it initializes to unspecified values, I guess it's legal (IIRC) to read them (even if useless). Am I understanding correctly? Or do you mean that the values of the variables are undefined? Cheers, Alex
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+timezone is a geographical timezone like "America/New_York" (see below). +.P If the .B TZ variable does not appear in the environment, the system timezone is used.@@ -155,7 +160,8 @@ TZ="NZST\-12:00:00NZDT\-13:00:00,M10.1.0,M3.3.0" .EE .in .P -The second format specifies that the timezone information should be read +The second, or "geographical", +format specifies that the timezone information should be read from a file: .P .in +4n-- 2.45.2
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