From: Marek Polacek <polacek@redhat.com>
Date: Fri, 8 Dec 2023 18:44:10 +0000 (-0500)
Subject: c++: Add fixed test [PR88848]
X-Git-Tag: basepoints/gcc-15~3795
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a5a5d5e7d32b21205562a35b307ff69e389b996;p=thirdparty%2Fgcc.git

c++: Add fixed test [PR88848]

This one was fixed by r12-7714-g47da5198766256.

	PR c++/88848

gcc/testsuite/ChangeLog:

	* g++.dg/inherit/multiple2.C: New test.
---

diff --git a/gcc/testsuite/g++.dg/inherit/multiple2.C b/gcc/testsuite/g++.dg/inherit/multiple2.C
new file mode 100644
index 000000000000..dd3d0daf248c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/inherit/multiple2.C
@@ -0,0 +1,35 @@
+// PR c++/88848
+// { dg-do compile { target c++17 } }
+
+template<typename>
+struct True { static constexpr bool value{ true }; };
+
+template<int VALUE>
+struct Integer { static constexpr int value{ VALUE }; };
+
+template<int VALUE, typename TYPE>
+struct Foo
+{
+  using Integer_t = Integer<VALUE>;
+
+  static TYPE get_type(Integer_t);
+};
+
+template<typename... ARGS>
+struct Bar : ARGS...
+{
+  using ARGS::get_type...;
+
+  template<int VALUE>
+  using Type_t = decltype(get_type(Integer<VALUE>{}));
+
+  Bar() { static_assert((True< Type_t<ARGS::Integer_t::value> >::value && ...)); }
+
+  static_assert((True< Type_t<ARGS::Integer_t::value> >::value && ...));
+};
+
+int main()
+{
+  Bar<Foo<4, float>, Foo<8, double>> obj;
+  return int{ sizeof(obj) };
+}