cpython/Objects/stringlib/eq.h
Serhiy Storchaka eebaa9bfc5
bpo-38249: Expand Py_UNREACHABLE() to __builtin_unreachable() in the release mode. (GH-16329)
Co-authored-by: Victor Stinner <vstinner@python.org>
2020-03-09 20:49:52 +02:00

26 lines
848 B
C

/* Fast unicode equal function optimized for dictobject.c and setobject.c */
/* Return 1 if two unicode objects are equal, 0 if not.
* unicode_eq() is called when the hash of two unicode objects is equal.
*/
Py_LOCAL_INLINE(int)
unicode_eq(PyObject *aa, PyObject *bb)
{
assert(PyUnicode_Check(aa));
assert(PyUnicode_Check(bb));
assert(PyUnicode_IS_READY(aa));
assert(PyUnicode_IS_READY(bb));
PyUnicodeObject *a = (PyUnicodeObject *)aa;
PyUnicodeObject *b = (PyUnicodeObject *)bb;
if (PyUnicode_GET_LENGTH(a) != PyUnicode_GET_LENGTH(b))
return 0;
if (PyUnicode_GET_LENGTH(a) == 0)
return 1;
if (PyUnicode_KIND(a) != PyUnicode_KIND(b))
return 0;
return memcmp(PyUnicode_1BYTE_DATA(a), PyUnicode_1BYTE_DATA(b),
PyUnicode_GET_LENGTH(a) * PyUnicode_KIND(a)) == 0;
}