Martin v. Löwis wrote: > Ben Laurie <ben@algroup.co.uk> writes: > > >>>So if you convert two pointers to the same PyIntObject to PyObject*, >>>and convert them back, then compare them, you are guaranteed to get >>>true. If you compare them while they are PyObject*, no guarantees are >>>given. >> >>FWIW, K&R 2nd Ed. says in A6.6 that this is only true if the conversion >>is to a type whose alignment requirement is less or equally strict. > > > What is "this" in your message? "no guarantees are given", or "you are > guaranteed to get true". If the latter: Sure, but 6.2.5p26 says Sorry, "this" is the conversion to some other pointer type and back yielding the same value. > # All pointers to structure types shall have the same representation > # and alignment requirements as each other. > > So all pointers are equal. All pointers to structures, sure. Cheers, Ben. -- http://www.apache-ssl.org/ben.html http://www.thebunker.net/ "There is no limit to what a man can do or how far he can go if he doesn't mind who gets the credit." - Robert Woodruff
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4