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30 lines
1.3 KiB
30 lines
1.3 KiB
2 years ago
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commit 31af92b9c8cf753992d45c801a855a02060afc08
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Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Date: Wed May 4 15:56:47 2022 +0530
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manual: Clarify that abbreviations of long options are allowed
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The man page and code comments clearly state that abbreviations of long
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option names are recognized correctly as long as they are unique.
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Document this fact in the glibc manual as well.
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Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Reviewed-by: Florian Weimer <fweimer@redhat.com>
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Reviewed-by: Andreas Schwab <schwab@linux-m68k.org>
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(cherry picked from commit db1efe02c9f15affc3908d6ae73875b82898a489)
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diff --git a/manual/getopt.texi b/manual/getopt.texi
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index 5485fc46946631f7..b4c0b15ac2060560 100644
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--- a/manual/getopt.texi
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+++ b/manual/getopt.texi
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@@ -250,7 +250,8 @@ option, and stores the option's argument (if it has one) in @code{optarg}.
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When @code{getopt_long} encounters a long option, it takes actions based
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on the @code{flag} and @code{val} fields of the definition of that
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-option.
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+option. The option name may be abbreviated as long as the abbreviation is
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+unique.
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If @code{flag} is a null pointer, then @code{getopt_long} returns the
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contents of @code{val} to indicate which option it found. You should
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