457226e02a
appropriate during constant evaluation. Note that the evaluator is sometimes invoked on incomplete expressions. In such cases, if an object is constructed but we never reach the point where it would be destroyed (and it has non-trivial destruction), we treat the expression as having an unmodeled side-effect. llvm-svn: 372538
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// RUN: %clang_cc1 -std=c++2a -fsyntax-only %s -verify
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namespace basic_sema {
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consteval int f1(int i) {
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return i;
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}
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consteval constexpr int f2(int i) {
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//expected-error@-1 {{cannot combine}}
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return i;
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}
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constexpr auto l_eval = [](int i) consteval {
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return i;
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};
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constexpr consteval int f3(int i) {
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//expected-error@-1 {{cannot combine}}
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return i;
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}
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struct A {
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consteval int f1(int i) const {
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return i;
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}
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consteval A(int i);
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consteval A() = default;
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consteval ~A() = default;
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};
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consteval struct B {}; // expected-error {{struct cannot be marked consteval}}
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consteval typedef B b; // expected-error {{typedef cannot be consteval}}
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consteval int redecl() {return 0;} // expected-note {{previous declaration is here}}
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constexpr int redecl() {return 0;} // expected-error {{constexpr declaration of 'redecl' follows consteval declaration}}
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consteval int i = 0; // expected-error {{consteval can only be used in function declarations}}
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consteval int; // expected-error {{consteval can only be used in function declarations}}
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consteval int f1() {} // expected-error {{no return statement in consteval function}}
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struct C {
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C() {}
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~C() {}
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};
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struct D {
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C c;
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consteval D() = default; // expected-error {{cannot be consteval}}
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consteval ~D() = default; // expected-error {{cannot be consteval}}
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};
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struct E : C { // expected-note {{here}}
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consteval ~E() {} // expected-error {{cannot be declared consteval because base class 'basic_sema::C' does not have a constexpr destructor}}
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};
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}
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consteval int main() { // expected-error {{'main' is not allowed to be declared consteval}}
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return 0;
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}
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