From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 19 Nov 1997 22:57:20 +0000 (+0000)
Subject: (obstack_empty_p): New definition.
X-Git-Tag: cvs/glibc-2_0_6-pre2~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0982ec01496269c07052881626b11754e578ff07;p=thirdparty%2Fglibc.git

(obstack_empty_p): New definition.
---

diff --git a/malloc/obstack.h b/malloc/obstack.h
index b60828b6aeb..e7ae6959e54 100644
--- a/malloc/obstack.h
+++ b/malloc/obstack.h
@@ -104,8 +104,8 @@ Summary:
 
 /* Don't do the contents of this file more than once.  */
 
-#ifndef __OBSTACK_H__
-#define __OBSTACK_H__
+#ifndef _OBSTACK_H
+#define _OBSTACK_H 1
 
 #ifdef __cplusplus
 extern "C" {
@@ -379,6 +379,11 @@ __extension__								\
      _obstack_newchunk (__o, __len);					\
    (void) 0; })
 
+#define obstack_empty_p(OBSTACK)					\
+  __extension__								\
+  ({ struct obstack *__o = (OBSTACK);					\
+     (__o->chunk->prev == 0 && __o->next_free - __o->chunk->contents == 0); })
+
 #define obstack_grow(OBSTACK,where,length)				\
 __extension__								\
 ({ struct obstack *__o = (OBSTACK);					\
@@ -492,6 +497,9 @@ __extension__								\
 #define obstack_room(h)		\
  (unsigned) ((h)->chunk_limit - (h)->next_free)
 
+#define obstack_empty_p(h) \
+ ((h)->chunk->prev == 0 && (h)->next_free - (h)->chunk->contents == 0)
+
 /* Note that the call to _obstack_newchunk is enclosed in (..., 0)
    so that we can avoid having void expressions
    in the arms of the conditional expression.
@@ -587,4 +595,4 @@ __extension__								\
 }	/* C++ */
 #endif
 
-#endif /* not __OBSTACK_H__ */
+#endif /* obstack.h */