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authornormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-03-02 22:50:31 (GMT)
committernormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-03-02 22:50:31 (GMT)
commitfd61a78303ae67772abec331647a90d0c419f32b (patch)
tree633fabe18168c32ab50ef6efb3581b117cabc000 /README.EXT
parent60bfa43238c8c2ea9397ca26f88fcf2cd4216f2f (diff)
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
Diffstat (limited to 'README.EXT')
-rw-r--r--README.EXT4
1 files changed, 2 insertions, 2 deletions
diff --git a/README.EXT b/README.EXT
index b1a816c..ecc9693 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.