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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
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6 changed files with 23 additions and 14 deletions
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@ -683,10 +683,10 @@ wrapping DBM* directly, because we want to cache size information.
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To retrieve the dbmdata structure from a Ruby object, we define the
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following macro:
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#define GetDBM(obj, dbmp) {\
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#define GetDBM(obj, dbmp) do {\
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Data_Get_Struct(obj, struct dbmdata, dbmp);\
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if (dbmp->di_dbm == 0) closed_dbm();\
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}
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} while (0)
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This sort of complicated macro does the retrieving and close checking for
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the DBM.
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