cpython-lru_cache-weakref: Objects/stringlib/eq.h annotate

annotate Objects/stringlib/eq.h @ 80779:10d04bdb05ab 3.3

Issue #16248: Disable code execution from the user's home directory by tkinter when the -E flag is passed to Python. Patch by Zachary Ware.

author	Antoine Pitrou <solipsis@pitrou.net>
date	Sun, 09 Dec 2012 14:46:46 +0100
parents	c25262e97304
children	8f9bc9283400 e7f6cef7a4cc

rev	line source
44252 444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	1 /* Fast unicode equal function optimized for dictobject.c and setobject.c */
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	2
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	3 /* Return 1 if two unicode objects are equal, 0 if not.
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	4 * unicode_eq() is called when the hash of two unicode objects is equal.
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	5 */
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	6 Py_LOCAL_INLINE(int)
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	7 unicode_eq(PyObject aa, PyObject bb)
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	8 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	9 register PyUnicodeObject a = (PyUnicodeObject )aa;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	10 register PyUnicodeObject b = (PyUnicodeObject )bb;
44252 444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	11
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	12 if (PyUnicode_READY(a) == -1 \|\| PyUnicode_READY(b) == -1) {
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	13 assert(0 && "unicode_eq ready fail");
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	14 return 0;
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	15 }
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	16
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	17 if (PyUnicode_GET_LENGTH(a) != PyUnicode_GET_LENGTH(b))
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	18 return 0;
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	19 if (PyUnicode_GET_LENGTH(a) == 0)
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	20 return 1;
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	21 if (PyUnicode_KIND(a) != PyUnicode_KIND(b))
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	22 return 0;
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	23 /* Just comparing the first byte is enough to see if a and b differ.
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	24 * If they are 2 byte or 4 byte character most differences will happen in
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	25 * the lower bytes anyways.
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	26 */
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	27 if (PyUnicode_1BYTE_DATA(a)[0] != PyUnicode_1BYTE_DATA(b)[0])
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	28 return 0;
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	29 if (PyUnicode_KIND(a) == PyUnicode_1BYTE_KIND &&
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	30 PyUnicode_GET_LENGTH(a) == 1)
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 44252 diff changeset	31 return 1;
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 61466 diff changeset	32 return memcmp(PyUnicode_1BYTE_DATA(a), PyUnicode_1BYTE_DATA(b),
72796 c25262e97304 Change PyUnicode_KIND to 1,2,4. Drop _KIND_SIZE and _CHARACTER_SIZE. Martin v. Löwis <martin@v.loewis.de> parents: 72475 diff changeset	33 PyUnicode_GET_LENGTH(a) * PyUnicode_KIND(a)) == 0;
44252 444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString Christian Heimes <christian@cheimes.de> parents: diff changeset	34 }

Mercurial > cpython-lru_cache-weakref

annotate Objects/stringlib/eq.h @ 80779:10d04bdb05ab 3.3