From: Sami Kerola <kerolasa@iki.fi>
Date: Fri, 2 Sep 2016 21:05:53 +0000 (+0100)
Subject: performance: use fewer printw() calls to center text
X-Git-Tag: v0.88~26^2~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5edb9708a93b812e1ce763f9a6d64495567cb8b6;p=thirdparty%2Fmtr.git

performance: use fewer printw() calls to center text

Avoid printing white space one by one when variable length print out of
nothing can do the same thing.

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

diff --git a/curses.c b/curses.c
index 34fdafb..c4b7980 100644
--- a/curses.c
+++ b/curses.c
@@ -70,14 +70,12 @@
 static void pwcenter(char *str) 
 {
   int maxx;
-  int cx;
+  size_t cx;
   int __unused_int UNUSED;
 
   getmaxyx(stdscr, __unused_int, maxx);
-  cx = (signed)(maxx - strlen(str)) / 2;
-  while(cx-- > 0)
-    printw(" ");
-  printw(str);
+  cx = (size_t)(maxx - strlen(str)) / 2;
+  printw("%*s%s", cx, "", str);
 }