From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 15 Nov 2023 23:05:17 +0000 (-0800)
Subject: uniq: prefer static init
X-Git-Tag: v9.5~105
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3bee7c9754b8be39e81c7260d4eac13ce5702dcd;p=thirdparty%2Fcoreutils.git

uniq: prefer static init

* src/uniq.c (skip_fields, skip_chars, check_chars, count_occurrences)
(output_unique, output_first_repeated, output_later_repeated)
(delimit_groups): Initialize statically, rather than in ‘main’.
This shrinks the executable a bit.
---

diff --git a/src/uniq.c b/src/uniq.c
index 697fc92212..28982c103e 100644
--- a/src/uniq.c
+++ b/src/uniq.c
@@ -51,24 +51,24 @@
   while (0)
 
 /* Number of fields to skip on each line when doing comparisons. */
-static idx_t skip_fields;
+static idx_t skip_fields = false;
 
 /* Number of chars to skip after skipping any fields. */
-static idx_t skip_chars;
+static idx_t skip_chars = false;
 
 /* Number of chars to compare. */
-static idx_t check_chars;
+static idx_t check_chars = IDX_MAX;
 
 /* Whether to precede the output lines with a count of the number of
    times they occurred in the input. */
-static bool count_occurrences;
+static bool count_occurrences = false;
 
 /* Which lines to output: unique lines, the first of a group of
    repeated lines, and the second and subsequent of a group of
    repeated lines.  */
-static bool output_unique;
-static bool output_first_repeated;
-static bool output_later_repeated;
+static bool output_unique = true;
+static bool output_first_repeated = true;
+static bool output_later_repeated = false;
 
 /* If true, ignore case when comparing.  */
 static bool ignore_case;
@@ -96,7 +96,7 @@ static enum delimit_method const delimit_method_map[] =
 };
 
 /* Select whether/how to delimit groups of duplicate lines.  */
-static enum delimit_method delimit_groups;
+static enum delimit_method delimit_groups = DM_NONE;
 
 enum grouping_method
 {
@@ -481,14 +481,6 @@ main (int argc, char **argv)
 
   atexit (close_stdout);
 
-  skip_chars = 0;
-  skip_fields = 0;
-  check_chars = IDX_MAX;
-  output_unique = output_first_repeated = true;
-  output_later_repeated = false;
-  count_occurrences = false;
-  delimit_groups = DM_NONE;
-
   while (true)
     {
       /* Parse an operand with leading "+" as a file after "--" was