From: Daniel Arndt <arndtd@ornl.gov>
Date: Thu, 20 Jul 2023 21:45:34 +0000 (-0400)
Subject: Add static call operator to C++23 feature check
X-Git-Tag: relicensing~664^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F15772%2Fhead;p=dealii.git

Add static call operator to C++23 feature check
---

diff --git a/cmake/checks/check_01_cxx_features.cmake b/cmake/checks/check_01_cxx_features.cmake
index e54e413356..462774b39b 100644
--- a/cmake/checks/check_01_cxx_features.cmake
+++ b/cmake/checks/check_01_cxx_features.cmake
@@ -70,6 +70,10 @@ macro(_test_cxx23_support)
     #  error \"insufficient support for C++23\"
     #endif
 
+    struct Dummy {
+      static void operator()() {}
+    };
+
     int main() {}
     "
     DEAL_II_HAVE_CXX23_FEATURES)