Which stack overflow question? :) On Sat, Jul 6, 2013 at 11:15 PM, Richard Smith <[email protected]> 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>(); > > > _______________________________________________ > cfe-commits mailing list > [email protected] > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
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