r185772 - Rename test to match C++1y paragraph number per N3690, and add additional test
Stephen Lin
swlin at post.harvard.edu
Sat Jul 6 23:36:57 PDT 2013
Which stack overflow question? :)
On Sat, Jul 6, 2013 at 11:15 PM, Richard Smith
<richard-llvm at metafoo.co.uk> wrote:
> Author: rsmith
> Date: Sun Jul 7 01:15:42 2013
> New Revision: 185772
>
> URL: http://llvm.org/viewvc/llvm-project?rev=185772&view=rev
> Log:
> Rename test to match C++1y paragraph number per N3690, and add additional test
> case inspired by a stackoverflow question.
>
> Added:
> cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp
> - copied, changed from r185271, cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp
> Removed:
> cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp
> Modified:
> cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp
>
> Removed: cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp?rev=185771&view=auto
> ==============================================================================
> --- cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp (original)
> +++ cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp (removed)
> @@ -1,97 +0,0 @@
> -// RUN: %clang_cc1 -verify -std=c++1y %s
> -
> -namespace std {
> - template<typename T> struct initializer_list {
> - const T *p;
> - unsigned long n;
> - initializer_list(const T *p, unsigned long n);
> - };
> -}
> -
> -// FIXME: This may not be p6 in C++1y; N3638 isn't very clear whether paragraphs
> -// were added. It might be p8?
> -
> -int i;
> -int &&f();
> -
> -using Int = int;
> -using IntLRef = int&;
> -using IntRRef = int&&;
> -using InitListInt = std::initializer_list<int>;
> -using IntPtr = int*;
> -
> -auto x3a = i;
> -decltype(auto) x3d = i;
> -using Int = decltype(x3a);
> -using Int = decltype(x3d);
> -
> -auto x4a = (i);
> -decltype(auto) x4d = (i);
> -using Int = decltype(x4a);
> -using IntLRef = decltype(x4d);
> -
> -auto x5a = f();
> -decltype(auto) x5d = f();
> -using Int = decltype(x5a);
> -using IntRRef = decltype(x5d);
> -
> -auto x6a = { 1, 2 };
> -decltype(auto) x6d = { 1, 2 }; // expected-error {{cannot deduce 'decltype(auto)' from initializer list}}
> -using InitListInt = decltype(x6a);
> -
> -auto *x7a = &i;
> -decltype(auto) *x7d = &i; // expected-error {{cannot form pointer to 'decltype(auto)'}}
> -using IntPtr = decltype(x7a);
> -
> -struct S {};
> -
> -decltype(auto) f1();
> -decltype(auto) (*f2)(); // expected-error {{'decltype(auto)' can only be used as a return type in a function declaration}} expected-error {{requires an initializer}}
> -decltype(auto) *f3(); // expected-error {{cannot form pointer to 'decltype(auto)'}}
> -const decltype(auto) f4(); // expected-error {{'decltype(auto)' cannot be combined with other type specifiers}}
> -typedef decltype(auto) f5(); // expected-error {{'decltype(auto)' can only be used as a return type in a function declaration}}
> -decltype(auto) ((((((f6))))())); // ok
> -decltype(auto) f7()(); // expected-error {{'decltype(auto)' can only be used as a return type in a function declaration}} expected-error {{function cannot return function type}}
> -decltype(auto) (S::*f8)(); // expected-error {{'decltype(auto)' can only be used as a return type in a function declaration}} expected-error {{requires an initializer}}
> -decltype(auto) &f9(); // expected-error {{cannot form reference to 'decltype(auto)'}}
> -decltype(auto) (&f10())[10]; // expected-error {{cannot form array of 'decltype(auto)'}}
> -
> -decltype(auto) ((((((v1)))))) = 0; // ok
> -decltype(auto) v2[1] = { 0 }; // expected-error {{cannot form array of 'decltype(auto)'}}
> -decltype(auto) &v3 = { 0 }; // expected-error {{cannot form reference to 'decltype(auto)'}}
> -decltype(auto) *v4 = { 0 }; // expected-error {{cannot form pointer to 'decltype(auto)'}}
> -
> -auto multi1a = 0, &multi1b = multi1a;
> -auto multi1c = multi1a, multi1d = multi1b;
> -decltype(auto) multi1e = multi1a, multi1f = multi1b; // expected-error {{'decltype(auto)' deduced as 'int' in declaration of 'multi1e' and deduced as 'int &' in declaration of 'multi1f'}}
> -
> -auto f1a() { return 0; }
> -decltype(auto) f1d() { return 0; }
> -using Int = decltype(f1a());
> -using Int = decltype(f1d());
> -
> -auto f2a(int n) { return n; }
> -decltype(auto) f2d(int n) { return n; }
> -using Int = decltype(f2a(0));
> -using Int = decltype(f2d(0));
> -
> -auto f3a(int n) { return (n); }
> -decltype(auto) f3d(int n) { return (n); } // expected-warning {{reference to stack memory}}
> -using Int = decltype(f3a(0));
> -using IntLRef = decltype(f3d(0));
> -
> -auto f4a(int n) { return f(); }
> -decltype(auto) f4d(int n) { return f(); }
> -using Int = decltype(f4a(0));
> -using IntRRef = decltype(f4d(0));
> -
> -auto f5aa(int n) { auto x = f(); return x; }
> -auto f5ad(int n) { decltype(auto) x = f(); return x; }
> -decltype(auto) f5da(int n) { auto x = f(); return x; }
> -decltype(auto) f5dd(int n) { decltype(auto) x = f(); return x; } // expected-error {{rvalue reference to type 'int' cannot bind to lvalue}}
> -using Int = decltype(f5aa(0));
> -using Int = decltype(f5ad(0));
> -using Int = decltype(f5da(0));
> -
> -auto init_list_1() { return { 1, 2, 3 }; } // expected-error {{cannot deduce return type from initializer list}}
> -decltype(auto) init_list_2() { return { 1, 2, 3 }; } // expected-error {{cannot deduce return type from initializer list}}
>
> Copied: cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp (from r185271, cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp)
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp?p2=cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp&p1=cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp&r1=185271&r2=185772&rev=185772&view=diff
> ==============================================================================
> --- cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp (original)
> +++ cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp Sun Jul 7 01:15:42 2013
> @@ -8,9 +8,6 @@ namespace std {
> };
> }
>
> -// FIXME: This may not be p6 in C++1y; N3638 isn't very clear whether paragraphs
> -// were added. It might be p8?
> -
> int i;
> int &&f();
>
>
> Modified: cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp?rev=185772&r1=185771&r2=185772&view=diff
> ==============================================================================
> --- cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp (original)
> +++ cfe/trunk/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp Sun Jul 7 01:15:42 2013
> @@ -29,4 +29,17 @@ void g() {
> (*e)() -> void,
> #endif
> f = 0.0;
> +
> +#if __has_feature(cxx_decltype)
> + auto g = 0ull, h = decltype(g)(0);
> +#endif
> +}
> +
> +template<typename T> void h() {
> + auto a = T(), *b = &a;
> +#if __has_feature(cxx_decltype)
> + auto c = T(), d = decltype(c)(0);
> +#endif
> }
> +template void h<int>();
> +template void h<unsigned long>();
>
>
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