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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/cpp0x/constexpr-non-const-arg.C
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diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-non-const-arg.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-non-const-arg.C
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+// Example from issue 1125 drafting; D() and v were well-formed with the
+// wording approved in Rapperswil, now seems they should be ill-formed.
+// { dg-options "-std=c++0x -pedantic-errors" }
+
+struct B {
+ constexpr B(int x) : i(0) { } // "x" is unused
+ int i;
+};
+
+int global; // { dg-message "not const" }
+
+struct D : B {
+ constexpr D() : B(global) { } // { dg-error "global|argument" }
+};
+
+struct A2 {
+ constexpr A2(bool b, int x) : m(b ? 42 : x) { }
+ int m;
+};
+
+// ok, constructor call initializes m with the value 42 after substitution
+constexpr int v = A2(true, global).m; // { dg-error "global" }
+// error: initializer for m is "x", which is non-constant
+constexpr int w = A2(false, global).m; // { dg-error "global" }