minNum/maxNum added, changed to multiple attributes (justme1968)

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@3417 2b470e98-0d58-463d-a4d8-8e2adae1ed80

FHEM/99_Utils.pm

@@ -21,21 +21,46 @@ time_str2num($)
 }
 
 sub
-min($$)
+min($@)
 {
-  my ($a,$b) = @_;
+  my ($min, @vars) = @_; 
-  return $a if($a lt $b);
+  for (@vars) {
-  return $b;
+    $min = $_ if $_ lt $min;
+  }           
+  return $min;
 }
 
 sub
-max($$)
+max($@)
 {
-  my ($a,$b) = @_;
+  my ($max, @vars) = @_; 
-  return $a if($a gt $b);
+  for (@vars) {
-  return $b;
+    $max = $_ if $_ gt $max;
+  }           
+  return $max;
 }
 
+sub
+minNum($@)
+{             
+  my ($min, @vars) = @_; 
+  for (@vars) {
+    $min = $_ if $_ < $min;
+  }           
+  return $min;
+}
+
+sub
+maxNum($@)
+{             
+  my ($max, @vars) = @_; 
+  for (@vars) {
+    $max = $_ if $_ > $max;
+  }           
+  return $max;
+}
+
+
 sub
 abstime2rel($)
 {