From fd61a78303ae67772abec331647a90d0c419f32b Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 2 Mar 2014 22:50:31 +0000
Subject: use do/while(0) around GetDBM macros

* README.EXT: wrap GetDBM with do/while(0)
* README.EXT.ja: ditto
* ext/dbm/dbm.c: ditto, likewise for GetDBM2
* ext/gdbm/gdbm.c: ditto
* ext/sdbm/init.c: ditto
  [ruby-core:61217]

ref: http://c-faq.com/cpp/multistmt.html

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45260 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 README.EXT | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'README.EXT')

diff --git a/README.EXT b/README.EXT
index b1a816c271..ecc96933a3 100644
--- a/README.EXT
+++ b/README.EXT
@@ -683,10 +683,10 @@ wrapping DBM* directly, because we want to cache size information.
 To retrieve the dbmdata structure from a Ruby object, we define the
 following macro:
 
-  #define GetDBM(obj, dbmp) {\
+  #define GetDBM(obj, dbmp) do {\
       Data_Get_Struct(obj, struct dbmdata, dbmp);\
       if (dbmp->di_dbm == 0) closed_dbm();\
-  }
+  } while (0)
 
 This sort of complicated macro does the retrieving and close checking for
 the DBM.
-- 
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