61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
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// RUN: not %clang -fsyntax-only -std=c++11 -ferror-limit=1 %s 2>&1 | FileCheck %s
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// Test case for PR35682.
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// The issue be caused by the typo correction that changes String to the
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// incomplete type string. The example is based on the std::pair code and
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// reduced to a minimal test case. When using std::pair the issue can only be
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// reproduced when using the -stdlib=libc++ compiler option.
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template <class T> class allocator;
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template <class charT> struct char_traits;
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template <class CharT, class Traits = char_traits<CharT>,
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class Allocator = allocator<CharT>>
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class basic_string;
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typedef basic_string<char, char_traits<char>, allocator<char>> string;
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template <bool, class Tp = void> struct enable_if {};
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template <class Tp> struct enable_if<true, Tp> { typedef Tp type; };
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template <class Tp, Tp v> struct integral_constant {
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static constexpr const Tp value = v;
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typedef Tp value_type;
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typedef integral_constant type;
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constexpr operator value_type() const noexcept { return value; }
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constexpr value_type operator()() const noexcept { return value; }
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};
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template <class Tp, Tp v> constexpr const Tp integral_constant<Tp, v>::value;
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using true_type = integral_constant<bool, true>;
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using false_type = integral_constant<bool, false>;
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template <class Tp, class Up> struct is_same : public false_type {};
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template <class Tp> struct is_same<Tp, Tp> : public true_type {};
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template <class T> struct single {
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typedef T first_type;
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T first;
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struct CheckArgs {
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template <class U1> static constexpr bool enable_implicit() {
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return is_same<first_type, U1>::value;
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}
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};
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template <class U1,
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typename enable_if<CheckArgs::template enable_implicit<U1>(),
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bool>::type = false>
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single(U1 &&u1);
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};
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using SetKeyType = String;
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single<SetKeyType> v;
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// CHECK: error: unknown type name 'String'; did you mean 'string'?
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// CHECK: fatal error: too many errors emitted, stopping now [-ferror-limit=]
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// CHECK-NOT: Assertion{{.*}}failed
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