cpython: e5bd48b43a58 (original) (raw)

Mercurial > cpython

changeset 72903:e5bd48b43a58

Optimize findchar() for PyUnicode_1BYTE_KIND: use memchr and memrchr

Victor Stinner victor.stinner@haypocalc.com
date	Thu, 13 Oct 2011 00🔞12 +0200
parents	9c7d3207fc15
children	f60e8228aeb2
files	Objects/unicodeobject.c
diffstat	1 files changed, 8 insertions(+), 0 deletions(-)[+] [-] Objects/unicodeobject.c 8

line wrap: on

line diff

--- a/Objects/unicodeobject.c +++ b/Objects/unicodeobject.c @@ -530,6 +530,14 @@ Py_LOCAL_INLINE(char *) findchar(void s { / like wcschr, but doesn't stop at NULL characters */ Py_ssize_t i;

if (kind == 1) {
```
   if (direction == 1)[](#l1.8)
```

       return memchr(s, ch, size);[](#l1.9)

+#ifdef HAVE_MEMRCHR

```
   else[](#l1.11)
```

       return memrchr(s, ch, size);[](#l1.12)

+#endif

} if (direction == 1) { for(i = 0; i < size; i++) if (PyUnicode_READ(kind, s, i) == ch)