llvm-project/clang/test/Parser/cxx-member-initializers.cpp

108 lines
2.3 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
struct x {
x() : a(4) ; // expected-error {{expected '{'}}
};
struct y {
int a;
y() : a(4) ; // expected-error {{expected '{'}}
};
struct z {
int a;
z() : a {}
}; // expected-error {{expected '{'}}
namespace PR16480 {
template<int n> struct X {
X();
X(int);
};
struct A : X<0> {
A() : X<a<b>{0}.n>() {}
template<int> struct a {
int n;
};
static const int b = 1;
};
struct B : X<0> {
B() : X<a<b>{0} {}
static const int a = 0, b = 0;
};
template<int> struct a {
constexpr a(int) {}
constexpr operator int() const { return 0; }
};
struct C : X<0> {
C() : X<a<b>(0)>() {}
static const int b = 0;
};
struct D : X<0> {
D() : X<a<b>(0) {}
static const int a = 0, b = 0;
};
template<typename T> struct E : X<0> {
E(X<0>) : X<(0)>{} {}
E(X<1>) : X<int{}>{} {}
E(X<2>) : X<(0)>() {}
E(X<3>) : X<int{}>() {}
};
// FIXME: This should be valid in the union of C99 and C++11.
struct F : X<0> {
F() : X<A<T>().n + (T){}.n>{} {} // expected-error +{{}}
struct T { int n; };
template<typename> struct A { int n; };
};
// FIXME: This is valid now, but may be made ill-formed by DR1607.
struct G : X<0> {
G() : X<0 && [](){return 0;}()>{} // expected-error +{{}}
};
struct Errs : X<0> {
Errs(X<0>) : decltype X<0>() {} // expected-error {{expected '(' after 'decltype'}}
Errs(X<1>) : what is this () {} // expected-error {{expected '(' or '{'}}
Errs(X<2>) : decltype(X<0> // expected-note {{to match this '('}}
}; // expected-error {{expected ')'}}
}
template <class U, class V> struct C {
int f() { return 4; }
class C1 {};
};
class D {};
namespace N {
struct E {
class F {};
};
}
class G {
// These are all valid:
void f(int x = C<int, D>().f()) {}
void g(int x = C<int, ::D>().f()) {}
void h(int x = C<int, N::E>().f()) {}
void i(int x = C<int, ::N::E>().f()) {}
void j(int x = C<int, decltype(N::E())::F>().f()) {}
void k(int x = C<int, C<int, int>>().f()) {}
void l(int x = C<int, C<int, int>::C1>().f()) {}
// This isn't, but it shouldn't crash. The diagnostics don't matter much.
void m(int x = C<int, union int>().f()) {} // expected-error {{declaration of anonymous union must be a definition}} expected-error {{expected a type}}
};