more C99 cleanup

Peter Eisentraut <peter@eisentraut.org>

From: Peter Eisentraut <peter@eisentraut.org>

To: pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2025-11-21T13:50:03Z

Lists: pgsql-hackers

Attachments

0001-Replace-internal-C-function-pg_hypot-by-standard-hyp.patch (text/plain) patch 0001
0002-Update-comment-related-to-C99.patch (text/plain) patch 0002
0003-Fix-pg_isblank.patch (text/plain) patch 0003
0004-Remove-obsolete-comment.patch (text/plain) patch 0004

I have been hunting down the last few pieces of code that made some 
obsolete claims about not being able to use C99 yet or needing to be 
compatible with pre-C99 or something like that.  I found two obsolete 
comments and two places where we could now actually use the C99 
functionality that the comment was anticipating.

At least according to my grepping, all the remaining mentions of "C99" 
are now up to date and relevant.

Commits

Update comment related to C99
- 376c649634bb 19 (unreleased) landed
Fix pg_isblank()
- 8b3e2c622a85 19 (unreleased) landed
Replace internal C function pg_hypot() by standard hypot()
- 8fe4aef8297b 19 (unreleased) landed
Remove obsolete comment
- c581c9a7ac2a 19 (unreleased) landed
Report timezone offset in pg_dump/pg_dumpall
- ad5d46a4494b 9.5.0 cited