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author | glass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-11-08 13:40:33 +0000 |
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committer | glass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-11-08 13:40:33 +0000 |
commit | 9f9ebe4ebae2769be512e46e720c3e523b7f7479 (patch) | |
tree | c3282f29886aed0361a992bcaa11985d67b86108 | |
parent | 6ce8c33936d59716a0676d2ec8e22b22e2a1da94 (diff) | |
download | ruby-9f9ebe4ebae2769be512e46e720c3e523b7f7479.tar.gz |
* re.c (rb_memsearch): performance improvement by using memchr().
[ruby-dev:45397] [Feature #6173]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | ChangeLog | 5 | ||||
-rw-r--r-- | re.c | 12 |
2 files changed, 11 insertions, 6 deletions
@@ -1,3 +1,8 @@ +Thu Nov 8 21:57:59 2012 Masaki Matsushita <glass.saga@gmail.com> + + * re.c (rb_memsearch): performance improvement by using memchr(). + [ruby-dev:45397] [Feature #6173] + Thu Nov 8 19:02:50 2012 NARUSE, Yui <naruse@ruby-lang.org> * lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line): @@ -220,12 +220,12 @@ rb_memsearch(const void *x0, long m, const void *y0, long n, rb_encoding *enc) return 0; } else if (m == 1) { - const unsigned char *ys = y, *ye = ys + n; - for (; y < ye; ++y) { - if (*x == *y) - return y - ys; - } - return -1; + const unsigned char *ys; + + if (ys = memchr(y, *x, n)) + return ys - y; + else + return -1; } else if (m <= SIZEOF_VALUE) { return rb_memsearch_ss(x0, m, y0, n); |