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* array.c (rb_ary_first): add negative length check.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12295 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2007-05-18 14:18:02 +00:00
parent 642273c070
commit 7313b14021
2 changed files with 10 additions and 3 deletions
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2
ChangeLog
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@ -3,6 +3,8 @@ Fri May 18 23:07:33 2007 Yukihiro Matsumoto <matz@ruby-lang.org>
* array.c (rb_ary_first): call rb_ary_subseq() instead of pushing * array.c (rb_ary_first): call rb_ary_subseq() instead of pushing
values by itself. [ruby-talk:252062] values by itself. [ruby-talk:252062]
* array.c (rb_ary_first): add negative length check.
Fri May 18 17:10:31 2007 Nobuyoshi Nakada <nobu@ruby-lang.org> Fri May 18 17:10:31 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
* win32/win32.c (move_to_next_entry): loc also must move forward. * win32/win32.c (move_to_next_entry): loc also must move forward.

11
array.c
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@ -748,10 +748,15 @@ rb_ary_first(argc, argv, ary)
return RARRAY(ary)->ptr[0]; return RARRAY(ary)->ptr[0];
} }
else { else {
VALUE n; VALUE nv;
long n;
rb_scan_args(argc, argv, "01", &n); rb_scan_args(argc, argv, "01", &nv);
return rb_ary_subseq(ary, 0, NUM2LONG(n)); n = NUM2LONG(nv);
if (n < 0) {
rb_raise(rb_eArgError, "negative array size");
}
return rb_ary_subseq(ary, 0, n);
} }
} }