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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-10-29 19:47:28 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-10-29 19:47:28 +0000
commit22bd95ded46f7163bde16e4782648de2ce5e87a1 (patch)
tree134375c5a54bb3344fa7224228f7ca4905a6396b /include
parent2aa4d69d78405faf543da65969a17988799a1bba (diff)
* include/ruby/ruby.h (RSTRING_END): trivial optimization.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'include')
-rw-r--r--include/ruby/ruby.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 19f146e4ad..55836a8fd4 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -619,7 +619,12 @@ struct RString {
(!(RBASIC(str)->flags & RSTRING_NOEMBED) ? \
RSTRING(str)->as.ary : \
RSTRING(str)->as.heap.ptr)
-#define RSTRING_END(str) (RSTRING_PTR(str)+RSTRING_LEN(str))
+#define RSTRING_END(str) \
+ (!(RBASIC(str)->flags & RSTRING_NOEMBED) ? \
+ (RSTRING(str)->as.ary + \
+ ((RBASIC(str)->flags >> RSTRING_EMBED_LEN_SHIFT) & \
+ (RSTRING_EMBED_LEN_MASK >> RSTRING_EMBED_LEN_SHIFT))) : \
+ (RSTRING(str)->as.heap.ptr + RSTRING(str)->as.heap.len))
#define RARRAY_EMBED_LEN_MAX 3
struct RArray {