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* regexec.c (slow_search): check the case when the length is 1.

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The behavior of memcmp is undefined if the third argument is 0.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16482 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mame 2008-05-19 14:21:15 +00:00
parent 67d0fbd03f
commit a4195fc99b
2 changed files with 7 additions and 2 deletions
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4
regexec.c
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@ -2765,7 +2765,7 @@ slow_search(OnigEncoding enc, UChar* target, UChar* target_end,
if (*s == *target) {
p = s + 1;
t = target + 1;
if (memcmp(t, p, target_end - t) == 0)
if (target_end == t || memcmp(t, p, target_end - t) == 0)
return s;
}
s += n;
@ -2776,7 +2776,7 @@ slow_search(OnigEncoding enc, UChar* target, UChar* target_end,
if (*s == *target) {
p = s + 1;
t = target + 1;
if (memcmp(t, p, target_end - t) == 0)
if (target_end == t || memcmp(t, p, target_end - t) == 0)
return s;
}
s += enclen(enc, s, end);