From: Jim Meyering <jim@meyering.net>
Date: Mon, 2 Dec 2002 06:40:00 +0000 (+0000)
Subject: (SAFE_READ_ERROR): Define.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1db407fd6b30cfbd2eb538fc3e13e9df314dcd9;p=pspp

(SAFE_READ_ERROR): Define.
---

diff --git a/lib/safe-read.h b/lib/safe-read.h
index c4445ac1b8..cbe6e0bfd6 100644
--- a/lib/safe-read.h
+++ b/lib/safe-read.h
@@ -17,7 +17,9 @@
 
 #include <stddef.h>
 
+#define SAFE_READ_ERROR ((size_t) -1)
+
 /* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
-   Return the actual number of bytes read, zero for EOF, or (size_t) -1
-   for an error.  */
+   Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
+   upon error.  */
 extern size_t safe_read (int fd, void *buf, size_t count);