1berry/ruby
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

parse.y: Fix for nth_ref_max

Browse Source 
* parse.y (parse_numvar): NTH_REF must be less than a half of
  INT_MAX, as it is left-shifted to be ORed with back-ref flag.
  [ruby-core:74444] [Bug#12192] [Fix GH-1296]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54172 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-03-18 07:22:26 +00:00
parent b14ed1bb5d
commit 7a3cc69779
2 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@ -1,3 +1,9 @@
Fri Mar 18 16:22:24 2016 Victor Nawothnig <Victor.Nawothnig@gmail.com>
* parse.y (parse_numvar): NTH_REF must be less than a half of
INT_MAX, as it is left-shifted to be ORed with back-ref flag.
[ruby-core:74444] [Bug#12192] [Fix GH-1296]
Fri Mar 18 12:25:30 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* gc.c (tick): fix missing close parenthesis. [Fix GH-1291]

2
parse.y
View File

@ -7833,7 +7833,7 @@ parse_numvar(struct parser_params *parser)
int overflow;
unsigned long n = ruby_scan_digits(tok()+1, toklen()-1, 10, &len, &overflow);
const unsigned long nth_ref_max =
(FIXNUM_MAX / 2 < INT_MAX) ? FIXNUM_MAX / 2 : INT_MAX;
((FIXNUM_MAX < INT_MAX) ? FIXNUM_MAX : INT_MAX) >> 1;
/* NTH_REF is left-shifted to be ORed with back-ref flag and
* turned into a Fixnum, in compile.c */