From 5b126d345c2a13c1fc58e47ff906099fd416c743 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Sun, 26 Mar 2006 19:14:25 +0000
Subject: bugfix: [minmax] used to crash when an empty-list (not a bang) was
 sent to its left inlet

svn path=/trunk/externals/zexy/; revision=4771
---
 src/minmax.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/minmax.c b/src/minmax.c
index f96b025..c44065d 100644
--- a/src/minmax.c
+++ b/src/minmax.c
@@ -37,19 +37,20 @@ static void minmax_bang(t_minmax *x)
 
 static void minmax_list(t_minmax *x, t_symbol *s, int argc, t_atom *argv)
 {
-  t_float min = atom_getfloat(argv++);
-  t_float max=min;
-  argc--;
-
-  while(argc--){
-    t_float f = atom_getfloat(argv++);
-    if (f<min)min=f;
-    else if (f>max)max=f;
+  if(argc){
+    t_float min = atom_getfloat(argv++);
+    t_float max=min;
+    argc--;
+    
+    while(argc--){
+      t_float f = atom_getfloat(argv++);
+      if (f<min)min=f;
+      else if (f>max)max=f;
+    }
+    
+    x->min=min;
+    x->max=max;
   }
-
-  x->min=min;
-  x->max=max;
-
   minmax_bang(x);
 }
 
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