X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fstat%2Fcounter.h;h=de401af5213218c4943cd83eb33747d91aacc546;hb=f6aeac6a547a52beb3cb663c5e63c05c9c3728ea;hp=27d097b83bf7e9bca7d0317fb9a29a92f2e62ad1;hpb=cc6c81cfca9c224e26bf8033fd6dad1158546502;p=libfirm

diff --git a/ir/stat/counter.h b/ir/stat/counter.h
index 27d097b83..de401af52 100644
--- a/ir/stat/counter.h
+++ b/ir/stat/counter.h
@@ -1,15 +1,30 @@
 /*
- * Project:     libFIRM
- * File name:   ir/ir/counter.h
- * Purpose:     Statistics for Firm. Counter implementation.
- * Author:      Michael Beck
- * Created:
- * CVS-ID:      $Id$
- * Copyright:   (c) 2004 Universität Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
  */
-#ifndef _COUNTER_H_
-#define _COUNTER_H_
+
+/**
+ * @file
+ * @brief   Statistics for Firm. Counter implementation.
+ * @author  Michael Beck
+ * @version $Id$
+ */
+#ifndef FIRM_STAT_COUNTER_H
+#define FIRM_STAT_COUNTER_H
 
 #include <string.h>
 #include <limits.h>
@@ -25,6 +40,9 @@ typedef struct _counter_t {
 	unsigned cnt[STAT_CNT_NUM];
 } counter_t;
 
+/** initializes a counter with zero */
+#define ZERO_CNT { { 0 } }
+
 /**
  * increase a counter
  */
@@ -46,7 +64,7 @@ static INLINE void cnt_dec(counter_t *cnt)
 	int i;
 
 	for (i = 0; i < STAT_CNT_NUM; ++i) {
-		if (--cnt->cnt[i] != -1)
+		if (--cnt->cnt[i] != (unsigned) -1)
 			break;
 	}
 }
@@ -179,4 +197,4 @@ static INLINE int cnt_gt(const counter_t *a, unsigned value)
 	return a->cnt[0] > value;
 }
 
-#endif /* _COUNTER_H_ */
+#endif /* FIRM_STAT_COUNTER_H */