commit 9e7a1bcfd6737de148dd99c953e1d079ad3f239a
author Victor Stinner <victor.stinner@haypocalc.com> Thu Oct 13 00:18:12 2011 +0200
committer Victor Stinner <victor.stinner@haypocalc.com> Thu Oct 13 00:18:12 2011 +0200
tree 8546c0605026040540f43bdb08565016d8ab667a
parent dd4e2f01537506d152684d5dfb87ea8e1e3c4a9c

Optimize findchar() for PyUnicode_1BYTE_KIND: use memchr and memrchr

Objects/unicodeobject.c

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index e199a11..5766237 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -530,6 +530,14 @@
 {
     /* like wcschr, but doesn't stop at NULL characters */
     Py_ssize_t i;
+    if (kind == 1) {
+        if (direction == 1)
+            return memchr(s, ch, size);
+#ifdef HAVE_MEMRCHR
+        else
+            return memrchr(s, ch, size);
+#endif
+    }
     if (direction == 1) {
         for(i = 0; i < size; i++)
             if (PyUnicode_READ(kind, s, i) == ch)