X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flib%2Fctype.h;h=d0baf4fef9673526ba8a5b79be73af8f58b9d099;hb=6916b246f3be8c72d6e77fd98c4a1447fd2c1de7;hp=fafa51fdba6cb8b6084a7a25cf27879d2e9fc75c;hpb=859a5d60ca3a5a78d88a7bfb69f9944a41535504;p=pintos-anon

diff --git a/src/lib/ctype.h b/src/lib/ctype.h
index fafa51f..d0baf4f 100644
--- a/src/lib/ctype.h
+++ b/src/lib/ctype.h
@@ -1,5 +1,5 @@
-#ifndef LIB_CTYPE_H
-#define LIB_CTYPE_H 1
+#ifndef __LIB_CTYPE_H
+#define __LIB_CTYPE_H
 
 static inline int islower (int c) { return c >= 'a' && c <= 'z'; }
 static inline int isupper (int c) { return c >= 'A' && c <= 'Z'; }