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// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks %s
// RUN: %clang_cc1 -std=c++1z -verify -fsyntax-only -fblocks -fdelayed-template-parsing %s
// RUN: %clang_cc1 -std=c++14 -verify -fsyntax-only -fblocks %s -DCPP14_AND_EARLIER
namespace test_lambda_is_literal {
#ifdef CPP14_AND_EARLIER
//expected-error@+4{{not a literal type}}
//expected-note@+2{{not an aggregate and has no constexpr constructors}}
#endif
auto L = [] { };
constexpr int foo(decltype(L) l) { return 0; }
}
#ifndef CPP14_AND_EARLIER
namespace test_constexpr_checking {
namespace ns1 {
struct NonLit { ~NonLit(); }; //expected-note{{not literal}}
auto L = [](NonLit NL) constexpr { }; //expected-error{{not a literal type}}
} // end ns1
namespace ns2 {
auto L = [](int I) constexpr { asm("non-constexpr"); }; //expected-error{{not allowed in constexpr function}}
} // end ns1
} // end ns test_constexpr_checking
namespace test_constexpr_call {
namespace ns1 {
auto L = [](int I) { return I; };
static_assert(L(3) == 3);
} // end ns1
namespace ns2 {
auto L = [](auto a) { return a; };
static_assert(L(3) == 3);
static_assert(L(3.14) == 3.14);
}
namespace ns3 {
auto L = [](auto a) { asm("non-constexpr"); return a; }; //expected-note{{declared here}}
constexpr int I = //expected-error{{must be initialized by a constant expression}}
L(3); //expected-note{{non-constexpr function}}
}
} // end ns test_constexpr_call
#endif // ndef CPP14_AND_EARLIER
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