X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Ffilesys%2Foff_t.h;h=9caff4dbae88823f109b1d3ee99c7535f79a55ce;hb=fd2a5afa946474ba0839de0e9da238dbaecbd6a5;hp=2b97bca6c700cab021b92a4b80f2cb4dd67f141b;hpb=621963e2a383d53b2c5eca627102625421b46545;p=pintos-anon

diff --git a/src/filesys/off_t.h b/src/filesys/off_t.h
index 2b97bca..9caff4d 100644
--- a/src/filesys/off_t.h
+++ b/src/filesys/off_t.h
@@ -1,7 +1,15 @@
-#ifndef HEADER_OFF_T_H
-#define HEADER_OFF_T_H 1
+#ifndef FILESYS_OFF_T_H
+#define FILESYS_OFF_T_H
 
 #include <stdint.h>
+
+/* An offset within a file.
+   This is a separate header because multiple headers want this
+   definition but not any others. */
 typedef int32_t off_t;
 
-#endif /* off_t.h */
+/* Format specifier for printf(), e.g.:
+   printf ("offset=%"PROTd"\n", offset); */
+#define PROTd PRId32
+
+#endif /* filesys/off_t.h */