diff options
| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-02 22:50:31 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-02 22:50:31 +0000 |
| commit | fd61a78303ae67772abec331647a90d0c419f32b (patch) | |
| tree | 633fabe18168c32ab50ef6efb3581b117cabc000 /README.EXT | |
| parent | 60bfa43238c8c2ea9397ca26f88fcf2cd4216f2f (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.EXT | 4 |
1 files changed, 2 insertions, 2 deletions
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. |