This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
Calling functions through a C function pointer questoin
- From: "Toshi Morita via gcc-help" <gcc-help at gcc dot gnu dot org>
- To: "gcc-help at gcc dot gnu dot org" <gcc-help at gcc dot gnu dot org>
- Cc: "tm314159 at yahoo dot com" <tm314159 at yahoo dot com>
- Date: Thu, 12 Oct 2017 17:18:02 +0000 (UTC)
- Subject: Calling functions through a C function pointer questoin
- Authentication-results: sourceware.org; auth=none
- References: <300761573.664667.1507828682603.ref@mail.yahoo.com>
- Reply-to: Toshi Morita <tm314159 at yahoo dot com>
- Reply-to: Toshi Morita <tm314159 at yahoo dot com>
This isn't a GCC question specifically - it's more of a C language question.
I'm involved in a discussion involving C language function pointers.
The other party claims calling functions through a function pointer is "undefined behavior" because it's not specifically mentioned in the C language spec.
This seems silly, because this is a common language feature used by bytecode interpreters, JITs, etc.
Can someone clarify that calling functions through a function pointer is not "undefined behavior"?
Please CC me on replies as I'm not subscribed to the list. Thanks in advance.
Toshi