From: Martin Kronbichler Date: Fri, 15 Dec 2023 08:06:49 +0000 (+0100) Subject: Merge pull request #16350 from bangerth/optional X-Git-Tag: relicensing~244 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad01b962b8f624e9c369d506c1b7159f8c815b0d;p=dealii.git Merge pull request #16350 from bangerth/optional Use std::optional instead of a hand-rolled version of it. --- ad01b962b8f624e9c369d506c1b7159f8c815b0d