From 59e01f364927e66c0bb1ebc22c401cf2630616c0 Mon Sep 17 00:00:00 2001
From: Marek Polacek <polacek@redhat.com>
Date: Fri, 2 Aug 2019 18:17:20 +0000
Subject: [PATCH] re PR c++/56428 ([C++11] "is not a constant expression" when
 comparing non-type template argument to nullptr)

	PR c++/56428
	* g++.dg/cpp0x/nontype4.C: New test.

From-SVN: r274028
---
 gcc/testsuite/ChangeLog               |  5 +++++
 gcc/testsuite/g++.dg/cpp0x/nontype4.C | 25 +++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/nontype4.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d57410cb92b..147d8f8536f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-08-02  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/56428
+	* g++.dg/cpp0x/nontype4.C: New test.
+
 2019-08-02  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/53009
diff --git a/gcc/testsuite/g++.dg/cpp0x/nontype4.C b/gcc/testsuite/g++.dg/cpp0x/nontype4.C
new file mode 100644
index 00000000000..2c552d00293
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/nontype4.C
@@ -0,0 +1,25 @@
+// PR c++/56428
+// { dg-do compile { target c++11 } }
+
+struct A { };
+
+template<bool B>
+  struct Builder
+  {
+    static A build() { return A(); }
+  };
+
+template<A (*F)()>
+  A f()
+  {
+    return Builder<F != nullptr>::build();
+  }
+
+A g();
+
+int main()
+{
+  f< &g >();
+  f< nullptr >();
+  f< &f<nullptr> >();
+}
-- 
2.30.2