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* Beef-up tests for str.count().

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* Speed-up str.count() by using memchr() to fly between first char matches.
This commit is contained in:
Raymond Hettinger 2005-02-20 09:54:53 +00:00
parent 7cbf1bcb3e
commit 57e7447c44
2 changed files with 35 additions and 2 deletions
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9
Objects/stringobject.c
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@ -2145,7 +2145,7 @@ interpreted as in slice notation.");
static PyObject *
string_count(PyStringObject *self, PyObject *args)
{
const char *s = PyString_AS_STRING(self), *sub;
const char *s = PyString_AS_STRING(self), *sub, *t;
int len = PyString_GET_SIZE(self), n;
int i = 0, last = INT_MAX;
int m, r;
@ -2186,11 +2186,16 @@ string_count(PyStringObject *self, PyObject *args)
} else {
i++;
}
if (i >= m)
break;
t = memchr(s+i, sub[0], m-i);
if (t == NULL)
break;
i = t - s;
}
return PyInt_FromLong((long) r);
}
PyDoc_STRVAR(swapcase__doc__,
"S.swapcase() -> string\n\
\n\