From: Ben Pfaff <blp@cs.stanford.edu>
Date: Thu, 26 Aug 2004 19:01:18 +0000 (+0000)
Subject: Add ROUND_DOWN macro.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f83e3e0f724ab507c88d70c5de011dff2df9a4d8;p=pintos-anon

Add ROUND_DOWN macro.
---

diff --git a/src/lib/lib.h b/src/lib/lib.h
index 2f788be..668f904 100644
--- a/src/lib/lib.h
+++ b/src/lib/lib.h
@@ -6,6 +6,7 @@
 
 #define ROUND_UP(X, STEP) (((X) + (STEP) - 1) / (STEP) * (STEP))
 #define DIV_ROUND_UP(X, STEP) (((X) + (STEP) - 1) / (STEP))
+#define ROUND_DOWN(X, STEP) ((X) / (STEP) * (STEP))
 
 void *memset (void *, int, size_t);
 void *memcpy (void *, const void *, size_t);