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TheRock/compiler/amd-llvm/clang/test/Parser/cxx-template-template-recovery.cpp
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

45 lines
1.9 KiB
C++

// RUN: %clang_cc1 -std=c++20 -verify -fsyntax-only %s
namespace a {
template <typename T>
concept C1 = true; // #C1
template <typename T>
auto V1 = true; // #V1
namespace b {
template <typename T>
concept C2 = true; // #C2
template <typename T>
auto V2 = true; // #V2
}
}
template <typename T>
concept C3 = true; // #C3
template <typename T>
auto V3 = true; // #V3
template <template <typename T> typename C>
constexpr bool test = true;
static_assert(test<a::C1>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#C1 {{here}}
static_assert(test<a::b::C2>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#C2 {{here}}
static_assert(test<C3>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#C3 {{here}}
static_assert(test<a::V1>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#V1 {{here}}
static_assert(test<a::b::V2>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#V2 {{here}}
static_assert(test<V3>); // expected-error {{template argument does not refer to a class or alias template, or template template parameter}} \
// expected-note@#V3 {{here}}
void f() {
C3 t1 = 0; // expected-error {{expected 'auto' or 'decltype(auto)' after concept name}}
a::C1 t2 = 0; // expected-error {{expected 'auto' or 'decltype(auto)' after concept name}}
a::b::C2 t3 = 0; // expected-error {{expected 'auto' or 'decltype(auto)' after concept name}}
}