* [C++ PATCH] Add test for c++/52269
@ 2019-06-08 14:09 Marek Polacek
0 siblings, 0 replies; only message in thread
From: Marek Polacek @ 2019-06-08 14:09 UTC (permalink / raw)
To: GCC Patches; +Cc: Jason Merrill
Continuing scouring the Bugzilla. This one compiles fine since r224008
which deferred instantiating constexpr functions until we actually need the
definition.
Tested other compilers too; all of them accept the test.
Bootstrapped/regtested on x86_64-linux, applying to trunk.
2019-06-08 Marek Polacek <polacek@redhat.com>
PR c++/52269
* g++.dg/cpp0x/constexpr-decltype4.C: New test.
diff --git gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C
new file mode 100644
index 00000000000..64af90baee4
--- /dev/null
+++ gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C
@@ -0,0 +1,21 @@
+// PR c++/52269
+// { dg-do compile { target c++11 } }
+
+template<typename T>
+int f(T x)
+{
+ return x.get();
+}
+
+// O.K. The body of `f' is not required.
+decltype(f(0)) a;
+
+template<typename T>
+constexpr int g(T x)
+{
+ return x.get();
+}
+
+// Seems to instantiate the body of `g'
+// and results in an error.
+decltype(g(0)) b;
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