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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/SemaCXX/constexpr-value-init.cpp | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/SemaCXX/constexpr-value-init.cpp')
-rw-r--r-- | clang/test/SemaCXX/constexpr-value-init.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/constexpr-value-init.cpp b/clang/test/SemaCXX/constexpr-value-init.cpp new file mode 100644 index 0000000..e459f09 --- /dev/null +++ b/clang/test/SemaCXX/constexpr-value-init.cpp @@ -0,0 +1,37 @@ +// RUN: %clang_cc1 %s -std=c++11 -fsyntax-only -verify + +struct A { + constexpr A() : a(b + 1), b(a + 1) {} // expected-note {{uninitialized}} + int a; + int b; +}; +struct B { + A a; +}; + +constexpr A a; // ok, zero initialization preceeds static initialization +void f() { + constexpr A a; // expected-error {{constant expression}} expected-note {{in call to 'A()'}} +} + +constexpr B b1; // expected-error {{requires a user-provided default constructor}} +constexpr B b2 = B(); // ok +static_assert(b2.a.a == 1, ""); +static_assert(b2.a.b == 2, ""); + +struct C { + int c; +}; +struct D : C { int d; }; +constexpr C c1; // expected-error {{requires a user-provided default constructor}} +constexpr C c2 = C(); // ok +constexpr D d1; // expected-error {{requires a user-provided default constructor}} +constexpr D d2 = D(); // ok with DR1452 +static_assert(D().c == 0, ""); +static_assert(D().d == 0, ""); + +struct V : virtual C {}; +template<typename T> struct Z : T { + constexpr Z() : V() {} +}; +constexpr int n = Z<V>().c; // expected-error {{constant expression}} expected-note {{virtual base class}} |