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numeric.c: fix edge case

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* numeric.c (rb_fix2str): fix edge case, accidentally generated
  wrong Fixnum from LONG_MIN.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-03-13 00:15:48 +00:00
parent 8b4448e2e1
commit 05d916415f
2 changed files with 14 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun Mar 13 09:15:45 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* numeric.c (rb_fix2str): fix edge case, accidentally generated
wrong Fixnum from LONG_MIN.
Sat Mar 12 09:50:27 2016 Nobuyoshi Nakada <nobu@ruby-lang.org> Sat Mar 12 09:50:27 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_eval.c (rb_f_catch): [DOC] fix malformed RDoc syntax, "+...+" * vm_eval.c (rb_f_catch): [DOC] fix malformed RDoc syntax, "+...+"

10
numeric.c
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@ -2905,7 +2905,15 @@ rb_fix2str(VALUE x, int base)
return rb_usascii_str_new2("0"); return rb_usascii_str_new2("0");
} }
if (val < 0) { if (val < 0) {
val = -val; if (val == LONG_MIN) {
int last = ((int)((val = LONG_MAX) % base) + 1);
*--b = ruby_digitmap[last % base];
val /= base;
val += last == base; /* carry */
}
else {
val = -val;
}
neg = 1; neg = 1;
} }
do { do {