[gcc r15-9990] c++: constexpr array testcase [PR87097]

[Jason Merrill via Gcc-cvs]

https://gcc.gnu.org/g:10846d82a895cbc95b7819a5c44cd0216bb21bf4

commit r15-9990-g10846d82a895cbc95b7819a5c44cd0216bb21bf4
Author: Jason Merrill <ja...@redhat.com>
Date:   Thu Jul 17 09:46:35 2025 -0400

    c++: constexpr array testcase [PR87097]
    
    This seems to have been fixed by r15-7260 for PR118285, but is sufficiently
    different to merit its own test.
    
            PR c++/87097
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/cpp0x/constexpr-array29.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/cpp0x/constexpr-array29.C | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-array29.C 
b/gcc/testsuite/g++.dg/cpp0x/constexpr-array29.C
new file mode 100644
index 000000000000..714d050b503e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-array29.C
@@ -0,0 +1,13 @@
+// PR c++/87097
+// { dg-do compile { target c++11 } }
+
+struct A {
+  constexpr A() : data() {}
+  struct X { int n; };
+  X data[2];
+};
+
+static_assert((A(), true), "");
+static_assert(A().data[0].n == 0, "");
+static_assert(A().data[1].n == 0, "");
+constexpr A x;