Message 283158 - Python tracker

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In-reply-to
Author	methane
Recipients	methane, rhettinger, serhiy.storchaka, vstinner
Date	2016年12月14日.02:20:15
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1481682016.24.0.30118250635.issue28959@psf.upfronthosting.co.za>

Content
I didn't know about PyObject_VAR_HEAD much. The comment of the macro says: /* PyObject_VAR_HEAD defines the initial segment of all variable-size * container objects. These end with a declaration of an array with 1 * element, but enough space is malloc'ed so that the array actually * has room for ob_size elements. Note that ob_size is an element count, * not necessarily a byte count. */ dict doesn't end with array. Does Py_SIZE() support recommended, like Python's len()?

Content

I didn't know about PyObject_VAR_HEAD much.
The comment of the macro says:
/* PyObject_VAR_HEAD defines the initial segment of all variable-size
 * container objects. These end with a declaration of an array with 1
 * element, but enough space is malloc'ed so that the array actually
 * has room for ob_size elements. Note that ob_size is an element count,
 * not necessarily a byte count.
 */
dict doesn't end with array.
Does Py_SIZE() support recommended, like Python's len()?

History
Date	User	Action	Args
2016年12月14日 02:20:16	methane	set	recipients: + methane, rhettinger, vstinner, serhiy.storchaka
2016年12月14日 02:20:16	methane	set	messageid: <1481682016.24.0.30118250635.issue28959@psf.upfronthosting.co.za>
2016年12月14日 02:20:16	methane	link	issue28959 messages
2016年12月14日 02:20:15	methane	create

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