diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-29 02:58:53 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-29 02:58:53 +0000 |
| commit | c6c55bb78429d9305e8e1c65803ff3a388582ed6 (patch) | |
| tree | 76e2953e54ba10bcda55adc6a8349c5ff64175aa /node.h | |
| parent | eb486f24e1765927438b2c04c5ae5ad841bcdd48 (diff) | |
node.h: sign-extend
* node.h (nd_line): should sign-extend. shifting `VALUE` extends
with zero bits if `sizeof(VALUE)` equals to `sizeof(int)`. the
zero bits are truncated if `sizeof(VALUE)` is bigger enough.
[ruby-core:80920] [Bug #13523]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'node.h')
| -rw-r--r-- | node.h | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -277,7 +277,7 @@ typedef struct RNode { #define NODE_LSHIFT (NODE_TYPESHIFT+7) #define NODE_LMASK (((SIGNED_VALUE)1<<(sizeof(VALUE)*CHAR_BIT-NODE_LSHIFT))-1) -#define nd_line(n) (int)(RNODE(n)->flags>>NODE_LSHIFT) +#define nd_line(n) (int)(((SIGNED_VALUE)RNODE(n)->flags)>>NODE_LSHIFT) #define nd_set_line(n,l) \ RNODE(n)->flags=((RNODE(n)->flags&~((VALUE)(-1)<<NODE_LSHIFT))|((VALUE)((l)&NODE_LMASK)<<NODE_LSHIFT)) |