From: Anselm R Garbe <garbeam@gmail.com>
Date: Mon, 11 Feb 2008 20:48:22 +0000 (+0000)
Subject: applied dme's patch to prevent changing prevtags if nothing actually changed
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=4adfdc9d95b2ec6603deab153697e2296e3c9c97;p=dwm.git

applied dme's patch to prevent changing prevtags if nothing actually changed
---

diff --git a/dwm.c b/dwm.c
index 699aed1..020adb3 100644
--- a/dwm.c
+++ b/dwm.c
@@ -1976,14 +1976,17 @@ xerrorstart(Display *dsply, XErrorEvent *ee) {
 void
 view(const char *arg) {
 	unsigned int i;
-
+	Bool tmp[LENGTH(tags)];
 	Monitor *m = &monitors[monitorat()];
 
-	memcpy(m->prevtags, m->seltags, sizeof initags);
 	for(i = 0; i < LENGTH(tags); i++)
-		m->seltags[i] = (NULL == arg);
-	m->seltags[idxoftag(arg)] = True;
-	arrange();
+		tmp[i] = (NULL == arg);
+	tmp[idxoftag(arg)] = True;
+	if(memcmp(m->seltags, tmp, sizeof initags) != 0) {
+		memcpy(m->prevtags, m->seltags, sizeof initags);
+		memcpy(m->seltags, tmp, sizeof initags);
+		arrange();
+	}
 }
 
 void