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manual: Mention POSIX-1.2024 requires time_t to be 64 bit or wider. 

* manual/time.texi (Time Types): Mention POSIX-1.2024 requires 64 bit
time_t.

Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Collin Funk 2025-04-02 17:41:58 -07:00 committed by Adhemerval Zanella
parent 93623c03d5
commit 363bbdbd2a
1 changed files with 2 additions and 1 deletions
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manual/time.texi
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@ -148,7 +148,8 @@ and pass them to the functions that convert them to broken-down time
On POSIX-conformant systems, @code{time_t} is an integer type and its
values represent the number of seconds elapsed since the @dfn{POSIX Epoch},
which is January 1, 1970, at 00:00:00 Coordinated Universal Time (UTC)@.
The count of seconds ignores leap seconds.
The count of seconds ignores leap seconds. Additionally, POSIX.1-2024
added the requirement that @code{time_t} be at least 64 bits wide.
@Theglibc{} additionally guarantees that @code{time_t} is a signed
type, and that all of its functions operate correctly on negative