From: Sami Kerola <kerolasa@iki.fi>
Date: Sat, 3 Aug 2013 23:15:19 +0000 (+0100)
Subject: column: use variable lenght printf field width to wprint blanks
X-Git-Tag: v2.24-rc1~405
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d2b7bc74d9d69bf5c40639d143a92f2e7b2df062;p=thirdparty%2Futil-linux.git

column: use variable lenght printf field width to wprint blanks

This makes program to run a little faster.  My test input show about 20%
speed improvement.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
---

diff --git a/text-utils/column.c b/text-utils/column.c
index 2084ba6d12..2430ede9ec 100644
--- a/text-utils/column.c
+++ b/text-utils/column.c
@@ -308,7 +308,7 @@ wchar_t *local_wcstok(wchar_t * p, const wchar_t * separator, int greedy,
 static void maketbl(wchar_t **list, int entries, wchar_t *separator, int greedy, wchar_t *colsep)
 {
 	TBL *t;
-	int cnt, i;
+	int cnt;
 	wchar_t *p, **lp;
 	ssize_t *lens;
 	ssize_t maxcols = DEFCOLS, coloff;
@@ -347,8 +347,7 @@ static void maketbl(wchar_t **list, int entries, wchar_t *separator, int greedy,
 	for (t = tbl, cnt = 0; cnt < entries; ++cnt, ++t) {
 		for (coloff = 0; coloff < t->cols - 1; ++coloff) {
 			fputws(t->list[coloff], stdout);
-			for (i = lens[coloff] - t->len[coloff]; i > 0; i--)
-				putwchar(' ');
+			wprintf(L"%*s", lens[coloff] - t->len[coloff], "");
 			fputws(colsep, stdout);
 		}
 		if (coloff < t->cols) {