Revision bb8abf62 - gc.h: evaluate the macro argument only once * gc.h (RUBY_MARK_UNLESS_NULL): ... - Ruby - Ruby Issue Tracking System

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Revision bb8abf62

Added by nobu (Nobuyoshi Nakada) over 10 years ago

ID bb8abf62d3cb783b6b8ffeffb67c5ff519332c20
Parent 994460c4
Child 4592e15e

gc.h: evaluate the macro argument only once

gc.h (RUBY_MARK_UNLESS_NULL): evaluate the argument only once
to get rid of inadvertent side effects.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51247 b2dd03c8-39d4-4d8f-98ff-823fe69b080e