From 520c6b736df9baf60a22f6eb315638e448447be5 Mon Sep 17 00:00:00 2001 From: nobu Date: Fri, 8 Jan 2010 08:02:46 +0000 Subject: * ruby.h (RB_GC_GUARD_PTR): workaround for gcc optimization. [ruby-core:27402] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@26251 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ruby.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'ruby.h') diff --git a/ruby.h b/ruby.h index f03ce0d500..b44fb9bd34 100644 --- a/ruby.h +++ b/ruby.h @@ -227,7 +227,13 @@ VALUE rb_ull2inum _((unsigned LONG_LONG)); #define TYPE(x) rb_type((VALUE)(x)) -#define RB_GC_GUARD(v) (*(volatile VALUE *)&(v)) +#ifdef __GNUC__ +#define RB_GC_GUARD_PTR(ptr) \ + __extension__ ({volatile VALUE *rb_gc_guarded_ptr = (ptr); rb_gc_guarded_ptr;}) +#else +#define RB_GC_GUARD_PTR(ptr) (volatile VALUE *)(ptr) +#endif +#define RB_GC_GUARD(v) (*RB_GC_GUARD_PTR(&(v))) void rb_check_type _((VALUE,int)); #define Check_Type(v,t) rb_check_type((VALUE)(v),t) -- cgit v1.2.3