[C++] Add test for c++/72845

Message ID 20190608124843.GU5989@redhat.com
State New
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Series
  • [C++] Add test for c++/72845
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Commit Message

Marek Polacek June 8, 2019, 12:48 p.m.
This was crashing because our handling of friend decls with noexcept-specifiers
was broken.  Fixed by fairly recent r270005.

Tested x86_64-linux, applying to trunk.

2019-06-08  Marek Polacek  <polacek@redhat.com>

	PR c++/72845.patch
	* g++.dg/cpp0x/noexcept41.C: New test.

Comments

Marek Polacek June 8, 2019, 12:50 p.m. | #1
On Sat, Jun 08, 2019 at 08:48:43AM -0400, Marek Polacek wrote:
> This was crashing because our handling of friend decls with noexcept-specifiers

> was broken.  Fixed by fairly recent r270005.

> 

> Tested x86_64-linux, applying to trunk.

> 

> 2019-06-08  Marek Polacek  <polacek@redhat.com>

> 

> 	PR c++/72845.patch


Oop.  Fixed this before committing the test.

--
Marek Polacek • Red Hat, Inc. • 300 A St, Boston, MA
Jakub Jelinek June 8, 2019, 12:50 p.m. | #2
On Sat, Jun 08, 2019 at 08:48:43AM -0400, Marek Polacek wrote:
> This was crashing because our handling of friend decls with noexcept-specifiers

> was broken.  Fixed by fairly recent r270005.

> 

> Tested x86_64-linux, applying to trunk.

> 

> 2019-06-08  Marek Polacek  <polacek@redhat.com>

> 

> 	PR c++/72845.patch


s/\.patch//

> 	* g++.dg/cpp0x/noexcept41.C: New test.

> 

> diff --git gcc/testsuite/g++.dg/cpp0x/noexcept41.C gcc/testsuite/g++.dg/cpp0x/noexcept41.C

> new file mode 100644

> index 00000000000..4cd3d8d7854

> --- /dev/null

> +++ gcc/testsuite/g++.dg/cpp0x/noexcept41.C

> @@ -0,0 +1,12 @@

> +// PR c++/72845

> +// { dg-do compile { target c++11 } }

> +

> +template <typename> struct g { static const int h = 0; };

> +template <typename i> void declval() { static_assert(!g<i>::h,""); }

> +template <typename> struct a {

> +  template <typename d, typename c>

> +  friend auto f(d &&, c &&) noexcept(declval<c>) -> decltype(declval<c>); // { dg-error "different exception" }

> +};

> +template <typename d, typename c> auto f(d &&, c &&) -> decltype(declval<c>);

> +struct e {};

> +static_assert((e{}, declval<a<int>>),""); // { dg-error "no context to resolve type" }


	Jakub

Patch

diff --git gcc/testsuite/g++.dg/cpp0x/noexcept41.C gcc/testsuite/g++.dg/cpp0x/noexcept41.C
new file mode 100644
index 00000000000..4cd3d8d7854
--- /dev/null
+++ gcc/testsuite/g++.dg/cpp0x/noexcept41.C
@@ -0,0 +1,12 @@ 
+// PR c++/72845
+// { dg-do compile { target c++11 } }
+
+template <typename> struct g { static const int h = 0; };
+template <typename i> void declval() { static_assert(!g<i>::h,""); }
+template <typename> struct a {
+  template <typename d, typename c>
+  friend auto f(d &&, c &&) noexcept(declval<c>) -> decltype(declval<c>); // { dg-error "different exception" }
+};
+template <typename d, typename c> auto f(d &&, c &&) -> decltype(declval<c>);
+struct e {};
+static_assert((e{}, declval<a<int>>),""); // { dg-error "no context to resolve type" }