1839 lstrip_helper(const char *myptr, Py_ssize_t mysize,  in lstrip_helper()  argument
1843     while (i < mysize && memchr(argptr, (unsigned char) myptr[i], argsize))  in lstrip_helper()
1849 rstrip_helper(const char *myptr, Py_ssize_t mysize,  in rstrip_helper()  argument
1853     while (i >= 0 && memchr(argptr, (unsigned char) myptr[i], argsize))  in rstrip_helper()
1874     char *myptr;  in bytearray_strip_impl()  local
1888     myptr = PyByteArray_AS_STRING(self);  in bytearray_strip_impl()
1890     left = lstrip_helper(myptr, mysize, bytesptr, byteslen);  in bytearray_strip_impl()
1894         right = rstrip_helper(myptr, mysize, bytesptr, byteslen);  in bytearray_strip_impl()
1897     return PyByteArray_FromStringAndSize(myptr + left, right - left);  in bytearray_strip_impl()
1916     char *myptr;  in bytearray_lstrip_impl()  local
1930     myptr = PyByteArray_AS_STRING(self);  in bytearray_lstrip_impl()
1932     left = lstrip_helper(myptr, mysize, bytesptr, byteslen);  in bytearray_lstrip_impl()
1936     return PyByteArray_FromStringAndSize(myptr + left, right - left);  in bytearray_lstrip_impl()
1955     char *myptr;  in bytearray_rstrip_impl()  local
1969     myptr = PyByteArray_AS_STRING(self);  in bytearray_rstrip_impl()
1971     right = rstrip_helper(myptr, mysize, bytesptr, byteslen);  in bytearray_rstrip_impl()
1974     return PyByteArray_FromStringAndSize(myptr, right);  in bytearray_rstrip_impl()