You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
503 lines
19 KiB
503 lines
19 KiB
4 months ago
|
// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
||
|
|
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
||
|
|
// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
||
|
|
// RUN: %clang_cc1 -std=c++1z -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
||
|
|
|
||
|
|
namespace dr1512 { // dr1512: 4
|
||
|
|
void f(char *p) {
|
||
|
|
if (p > 0) {} // expected-error {{ordered comparison between pointer and zero}}
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
if (p > nullptr) {} // expected-error {{invalid operands}}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
bool g(int **x, const int **y) {
|
||
|
|
return x < y;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename T> T val();
|
||
|
|
|
||
|
|
template<typename A, typename B, typename C> void composite_pointer_type_is_base() {
|
||
|
|
typedef __typeof(true ? val<A>() : val<B>()) type;
|
||
|
|
typedef C type;
|
||
|
|
|
||
|
|
typedef __typeof(val<A>() == val<B>()) cmp;
|
||
|
|
typedef __typeof(val<A>() != val<B>()) cmp;
|
||
|
|
typedef bool cmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename A, typename B, typename C> void composite_pointer_type_is_ord() {
|
||
|
|
composite_pointer_type_is_base<A, B, C>();
|
||
|
|
|
||
|
|
typedef __typeof(val<A>() < val<B>()) cmp;
|
||
|
|
typedef __typeof(val<A>() <= val<B>()) cmp;
|
||
|
|
typedef __typeof(val<A>() > val<B>()) cmp;
|
||
|
|
typedef __typeof(val<A>() >= val<B>()) cmp;
|
||
|
|
typedef bool cmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename A, typename B, typename C>
|
||
|
|
void composite_pointer_type_is_unord(int = 0) {
|
||
|
|
composite_pointer_type_is_base<A, B, C>();
|
||
|
|
}
|
||
|
|
template <typename A, typename B, typename C>
|
||
|
|
void composite_pointer_type_is_unord(__typeof(val<A>() < val<B>()) * = 0);
|
||
|
|
template <typename A, typename B, typename C>
|
||
|
|
void composite_pointer_type_is_unord(__typeof(val<A>() <= val<B>()) * = 0);
|
||
|
|
template <typename A, typename B, typename C>
|
||
|
|
void composite_pointer_type_is_unord(__typeof(val<A>() > val<B>()) * = 0);
|
||
|
|
template <typename A, typename B, typename C>
|
||
|
|
void composite_pointer_type_is_unord(__typeof(val<A>() >= val<B>()) * = 0);
|
||
|
|
|
||
|
|
// A call to this is ambiguous if a composite pointer type exists.
|
||
|
|
template<typename A, typename B>
|
||
|
|
void no_composite_pointer_type(__typeof((true ? val<A>() : val<B>()), void()) * = 0);
|
||
|
|
template<typename A, typename B> void no_composite_pointer_type(int = 0);
|
||
|
|
|
||
|
|
struct A {};
|
||
|
|
struct B : A {};
|
||
|
|
struct C {};
|
||
|
|
|
||
|
|
void test() {
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
using nullptr_t = decltype(nullptr);
|
||
|
|
composite_pointer_type_is_unord<nullptr_t, nullptr_t, nullptr_t>();
|
||
|
|
no_composite_pointer_type<nullptr_t, int>();
|
||
|
|
|
||
|
|
composite_pointer_type_is_unord<nullptr_t, const char**, const char**>();
|
||
|
|
composite_pointer_type_is_unord<const char**, nullptr_t, const char**>();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
composite_pointer_type_is_ord<const int *, volatile void *, const volatile void*>();
|
||
|
|
composite_pointer_type_is_ord<const void *, volatile int *, const volatile void*>();
|
||
|
|
|
||
|
|
composite_pointer_type_is_ord<const A*, volatile B*, const volatile A*>();
|
||
|
|
composite_pointer_type_is_ord<const B*, volatile A*, const volatile A*>();
|
||
|
|
|
||
|
|
composite_pointer_type_is_unord<const int *A::*, volatile int *B::*, const volatile int *const B::*>();
|
||
|
|
composite_pointer_type_is_unord<const int *B::*, volatile int *A::*, const volatile int *const B::*>();
|
||
|
|
no_composite_pointer_type<int (A::*)(), int (C::*)()>();
|
||
|
|
no_composite_pointer_type<const int (A::*)(), volatile int (C::*)()>();
|
||
|
|
|
||
|
|
#if __cplusplus > 201402
|
||
|
|
composite_pointer_type_is_ord<int (*)() noexcept, int (*)(), int (*)()>();
|
||
|
|
composite_pointer_type_is_ord<int (*)(), int (*)() noexcept, int (*)()>();
|
||
|
|
composite_pointer_type_is_unord<int (A::*)() noexcept, int (A::*)(), int (A::*)()>();
|
||
|
|
composite_pointer_type_is_unord<int (A::*)(), int (A::*)() noexcept, int (A::*)()>();
|
||
|
|
// FIXME: This looks like a standard defect; these should probably all have type 'int (B::*)()'.
|
||
|
|
composite_pointer_type_is_unord<int (B::*)(), int (A::*)() noexcept, int (B::*)()>();
|
||
|
|
composite_pointer_type_is_unord<int (A::*)() noexcept, int (B::*)(), int (B::*)()>();
|
||
|
|
composite_pointer_type_is_unord<int (B::*)() noexcept, int (A::*)(), int (B::*)()>();
|
||
|
|
composite_pointer_type_is_unord<int (A::*)(), int (B::*)() noexcept, int (B::*)()>();
|
||
|
|
|
||
|
|
// FIXME: It would be reasonable to permit these, with a common type of 'int (*const *)()'.
|
||
|
|
no_composite_pointer_type<int (**)() noexcept, int (**)()>();
|
||
|
|
no_composite_pointer_type<int (**)(), int (**)() noexcept>();
|
||
|
|
|
||
|
|
// FIXME: It would be reasonable to permit these, with a common type of 'int (A::*)()'.
|
||
|
|
no_composite_pointer_type<int (A::*)() const, int (A::*)()>();
|
||
|
|
no_composite_pointer_type<int (A::*)(), int (A::*)() const>();
|
||
|
|
|
||
|
|
// FIXME: It would be reasonable to permit these, with a common type of
|
||
|
|
// 'int (A::*)() &' and 'int (A::*)() &&', respectively.
|
||
|
|
no_composite_pointer_type<int (A::*)() &, int (A::*)()>();
|
||
|
|
no_composite_pointer_type<int (A::*)(), int (A::*)() &>();
|
||
|
|
no_composite_pointer_type<int (A::*)() &&, int (A::*)()>();
|
||
|
|
no_composite_pointer_type<int (A::*)(), int (A::*)() &&>();
|
||
|
|
|
||
|
|
no_composite_pointer_type<int (A::*)() &&, int (A::*)() &>();
|
||
|
|
no_composite_pointer_type<int (A::*)() &, int (A::*)() &&>();
|
||
|
|
|
||
|
|
no_composite_pointer_type<int (C::*)(), int (A::*)() noexcept>();
|
||
|
|
no_composite_pointer_type<int (A::*)() noexcept, int (C::*)()>();
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
template<typename T> struct Wrap { operator T(); }; // expected-note 4{{converted to type 'nullptr_t'}} expected-note 4{{converted to type 'int *'}}
|
||
|
|
void test_overload() {
|
||
|
|
using nullptr_t = decltype(nullptr);
|
||
|
|
void(Wrap<nullptr_t>() == Wrap<nullptr_t>());
|
||
|
|
void(Wrap<nullptr_t>() != Wrap<nullptr_t>());
|
||
|
|
void(Wrap<nullptr_t>() < Wrap<nullptr_t>()); // expected-error {{invalid operands}}
|
||
|
|
void(Wrap<nullptr_t>() > Wrap<nullptr_t>()); // expected-error {{invalid operands}}
|
||
|
|
void(Wrap<nullptr_t>() <= Wrap<nullptr_t>()); // expected-error {{invalid operands}}
|
||
|
|
void(Wrap<nullptr_t>() >= Wrap<nullptr_t>()); // expected-error {{invalid operands}}
|
||
|
|
|
||
|
|
// Under dr1213, this is ill-formed: we select the builtin operator<(int*, int*)
|
||
|
|
// but then only convert as far as 'nullptr_t', which we then can't convert to 'int*'.
|
||
|
|
void(Wrap<nullptr_t>() == Wrap<int*>());
|
||
|
|
void(Wrap<nullptr_t>() != Wrap<int*>());
|
||
|
|
void(Wrap<nullptr_t>() < Wrap<int*>()); // expected-error {{invalid operands to binary expression ('Wrap<nullptr_t>' and 'Wrap<int *>')}}
|
||
|
|
void(Wrap<nullptr_t>() > Wrap<int*>()); // expected-error {{invalid operands}}
|
||
|
|
void(Wrap<nullptr_t>() <= Wrap<int*>()); // expected-error {{invalid operands}}
|
||
|
|
void(Wrap<nullptr_t>() >= Wrap<int*>()); // expected-error {{invalid operands}}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1514 { // dr1514: 11
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
struct S {
|
||
|
|
enum E : int {}; // expected-note {{previous}}
|
||
|
|
enum E : int {}; // expected-error {{redefinition}}
|
||
|
|
};
|
||
|
|
S::E se; // OK, complete type, not zero-width bitfield.
|
||
|
|
|
||
|
|
// The behavior in other contexts is superseded by DR1966.
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1518 { // dr1518: 4
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
struct Z0 { // expected-note 0+ {{candidate}}
|
||
|
|
explicit Z0() = default; // expected-note 0+ {{here}}
|
||
|
|
};
|
||
|
|
struct Z { // expected-note 0+ {{candidate}}
|
||
|
|
explicit Z(); // expected-note 0+ {{here}}
|
||
|
|
explicit Z(int); // expected-note {{not a candidate}}
|
||
|
|
explicit Z(int, int); // expected-note 0+ {{here}}
|
||
|
|
};
|
||
|
|
template <class T> int Eat(T); // expected-note 0+ {{candidate}}
|
||
|
|
Z0 a;
|
||
|
|
Z0 b{};
|
||
|
|
Z0 c = {}; // expected-error {{explicit in copy-initialization}}
|
||
|
|
int i = Eat<Z0>({}); // expected-error {{no matching function for call to 'Eat'}}
|
||
|
|
|
||
|
|
Z c2 = {}; // expected-error {{explicit in copy-initialization}}
|
||
|
|
int i2 = Eat<Z>({}); // expected-error {{no matching function for call to 'Eat'}}
|
||
|
|
Z a1 = 1; // expected-error {{no viable conversion}}
|
||
|
|
Z a3 = Z(1);
|
||
|
|
Z a2(1);
|
||
|
|
Z *p = new Z(1);
|
||
|
|
Z a4 = (Z)1;
|
||
|
|
Z a5 = static_cast<Z>(1);
|
||
|
|
Z a6 = {4, 3}; // expected-error {{explicit in copy-initialization}}
|
||
|
|
|
||
|
|
struct UserProvidedBaseCtor { // expected-note 0+ {{candidate}}
|
||
|
|
UserProvidedBaseCtor() {}
|
||
|
|
};
|
||
|
|
struct DoesntInheritCtor : UserProvidedBaseCtor { // expected-note 0+ {{candidate}}
|
||
|
|
int x;
|
||
|
|
};
|
||
|
|
DoesntInheritCtor I{{}, 42};
|
||
|
|
#if __cplusplus <= 201402L
|
||
|
|
// expected-error@-2 {{no matching constructor}}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct BaseCtor { BaseCtor() = default; }; // expected-note 0+ {{candidate}}
|
||
|
|
struct InheritsCtor : BaseCtor { // expected-note 1+ {{candidate}}
|
||
|
|
using BaseCtor::BaseCtor; // expected-note 2 {{inherited here}}
|
||
|
|
int x;
|
||
|
|
};
|
||
|
|
InheritsCtor II = {{}, 42}; // expected-error {{no matching constructor}}
|
||
|
|
|
||
|
|
namespace std_example {
|
||
|
|
struct A {
|
||
|
|
explicit A() = default; // expected-note 2{{declared here}}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct B : A {
|
||
|
|
explicit B() = default; // expected-note 2{{declared here}}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct C {
|
||
|
|
explicit C(); // expected-note 2{{declared here}}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct D : A {
|
||
|
|
C c;
|
||
|
|
explicit D() = default; // expected-note 2{{declared here}}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename T> void f() {
|
||
|
|
T t; // ok
|
||
|
|
T u{}; // ok
|
||
|
|
T v = {}; // expected-error 4{{explicit}}
|
||
|
|
}
|
||
|
|
template <typename T> void g() {
|
||
|
|
void x(T t); // expected-note 4{{parameter}}
|
||
|
|
x({}); // expected-error 4{{explicit}}
|
||
|
|
}
|
||
|
|
|
||
|
|
void test() {
|
||
|
|
f<A>(); // expected-note {{instantiation of}}
|
||
|
|
f<B>(); // expected-note {{instantiation of}}
|
||
|
|
f<C>(); // expected-note {{instantiation of}}
|
||
|
|
f<D>(); // expected-note {{instantiation of}}
|
||
|
|
g<A>(); // expected-note {{instantiation of}}
|
||
|
|
g<B>(); // expected-note {{instantiation of}}
|
||
|
|
g<C>(); // expected-note {{instantiation of}}
|
||
|
|
g<D>(); // expected-note {{instantiation of}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif // __cplusplus >= 201103L
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1550 { // dr1550: yes
|
||
|
|
int f(bool b, int n) {
|
||
|
|
return (b ? (throw 0) : n) + (b ? n : (throw 0));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1560 { // dr1560: 3.5
|
||
|
|
void f(bool b, int n) {
|
||
|
|
(b ? throw 0 : n) = (b ? n : throw 0) = 0;
|
||
|
|
}
|
||
|
|
class X { X(const X&); };
|
||
|
|
const X &get();
|
||
|
|
const X &x = true ? get() : throw 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1563 { // dr1563: yes
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
double bar(double) { return 0.0; }
|
||
|
|
float bar(float) { return 0.0f; }
|
||
|
|
|
||
|
|
using fun = double(double);
|
||
|
|
fun &foo{bar}; // ok
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1573 { // dr1573: 3.9
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
// ellipsis is inherited (p0136r1 supersedes this part).
|
||
|
|
struct A { A(); A(int, char, ...); };
|
||
|
|
struct B : A { using A::A; };
|
||
|
|
B b(1, 'x', 4.0, "hello"); // ok
|
||
|
|
|
||
|
|
// inherited constructor is effectively constexpr if the user-written constructor would be
|
||
|
|
struct C { C(); constexpr C(int) {} };
|
||
|
|
struct D : C { using C::C; };
|
||
|
|
constexpr D d = D(0); // ok
|
||
|
|
struct E : C { using C::C; A a; }; // expected-note {{non-literal type}}
|
||
|
|
constexpr E e = E(0); // expected-error {{non-literal type}}
|
||
|
|
// FIXME: This diagnostic is pretty bad; we should explain that the problem
|
||
|
|
// is that F::c would be initialized by a non-constexpr constructor.
|
||
|
|
struct F : C { using C::C; C c; }; // expected-note {{here}}
|
||
|
|
constexpr F f = F(0); // expected-error {{constant expression}} expected-note {{constructor inherited from base class 'C'}}
|
||
|
|
|
||
|
|
// inherited constructor is effectively deleted if the user-written constructor would be
|
||
|
|
struct G { G(int); };
|
||
|
|
struct H : G { using G::G; G g; }; // expected-note {{constructor inherited by 'H' is implicitly deleted because field 'g' has no default constructor}}
|
||
|
|
H h(0); // expected-error {{constructor inherited by 'H' from base class 'G' is implicitly deleted}}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
namespace std {
|
||
|
|
typedef decltype(sizeof(int)) size_t;
|
||
|
|
|
||
|
|
// libc++'s implementation
|
||
|
|
template <class _E>
|
||
|
|
class initializer_list
|
||
|
|
{
|
||
|
|
const _E* __begin_;
|
||
|
|
size_t __size_;
|
||
|
|
|
||
|
|
initializer_list(const _E* __b, size_t __s)
|
||
|
|
: __begin_(__b), __size_(__s) {}
|
||
|
|
|
||
|
|
public:
|
||
|
|
typedef _E value_type;
|
||
|
|
typedef const _E& reference;
|
||
|
|
typedef const _E& const_reference;
|
||
|
|
typedef size_t size_type;
|
||
|
|
|
||
|
|
typedef const _E* iterator;
|
||
|
|
typedef const _E* const_iterator;
|
||
|
|
|
||
|
|
initializer_list() : __begin_(nullptr), __size_(0) {}
|
||
|
|
|
||
|
|
size_t size() const {return __size_;}
|
||
|
|
const _E* begin() const {return __begin_;}
|
||
|
|
const _E* end() const {return __begin_ + __size_;}
|
||
|
|
};
|
||
|
|
|
||
|
|
template < class _T1, class _T2 > struct pair { _T2 second; };
|
||
|
|
|
||
|
|
template<typename T> struct basic_string {
|
||
|
|
basic_string(const T* x) {}
|
||
|
|
~basic_string() {};
|
||
|
|
};
|
||
|
|
typedef basic_string<char> string;
|
||
|
|
|
||
|
|
} // std
|
||
|
|
|
||
|
|
namespace dr1579 { // dr1579: 3.9
|
||
|
|
template<class T>
|
||
|
|
struct GenericMoveOnly {
|
||
|
|
GenericMoveOnly();
|
||
|
|
template<class U> GenericMoveOnly(const GenericMoveOnly<U> &) = delete; // expected-note 5 {{marked deleted here}}
|
||
|
|
GenericMoveOnly(const int &) = delete; // expected-note 2 {{marked deleted here}}
|
||
|
|
template<class U> GenericMoveOnly(GenericMoveOnly<U> &&);
|
||
|
|
GenericMoveOnly(int &&);
|
||
|
|
};
|
||
|
|
|
||
|
|
GenericMoveOnly<float> DR1579_Eligible(GenericMoveOnly<char> CharMO) {
|
||
|
|
int i;
|
||
|
|
GenericMoveOnly<char> GMO;
|
||
|
|
|
||
|
|
if (0)
|
||
|
|
return i;
|
||
|
|
else if (0)
|
||
|
|
return GMO;
|
||
|
|
else if (0)
|
||
|
|
return ((GMO));
|
||
|
|
else
|
||
|
|
return CharMO;
|
||
|
|
}
|
||
|
|
|
||
|
|
GenericMoveOnly<char> GlobalMO;
|
||
|
|
|
||
|
|
GenericMoveOnly<float> DR1579_Ineligible(int &AnInt,
|
||
|
|
GenericMoveOnly<char> &CharMO) {
|
||
|
|
static GenericMoveOnly<char> StaticMove;
|
||
|
|
extern GenericMoveOnly<char> ExternMove;
|
||
|
|
|
||
|
|
if (0)
|
||
|
|
return AnInt; // expected-error{{invokes a deleted function}}
|
||
|
|
else if (0)
|
||
|
|
return GlobalMO; // expected-error{{invokes a deleted function}}
|
||
|
|
else if (0)
|
||
|
|
return StaticMove; // expected-error{{invokes a deleted function}}
|
||
|
|
else if (0)
|
||
|
|
return ExternMove; // expected-error{{invokes a deleted function}}
|
||
|
|
else if (0)
|
||
|
|
return AnInt; // expected-error{{invokes a deleted function}}
|
||
|
|
else
|
||
|
|
return CharMO; // expected-error{{invokes a deleted function}}
|
||
|
|
}
|
||
|
|
|
||
|
|
auto DR1579_lambda_valid = [](GenericMoveOnly<float> mo) ->
|
||
|
|
GenericMoveOnly<char> {
|
||
|
|
return mo;
|
||
|
|
};
|
||
|
|
|
||
|
|
auto DR1579_lambda_invalid = []() -> GenericMoveOnly<char> {
|
||
|
|
static GenericMoveOnly<float> mo;
|
||
|
|
return mo; // expected-error{{invokes a deleted function}}
|
||
|
|
};
|
||
|
|
} // end namespace dr1579
|
||
|
|
|
||
|
|
namespace dr1584 {
|
||
|
|
// Deducing function types from cv-qualified types
|
||
|
|
template<typename T> void f(const T *); // expected-note {{candidate template ignored}}
|
||
|
|
template<typename T> void g(T *, const T * = 0);
|
||
|
|
template<typename T> void h(T *) { T::error; } // expected-error {{no members}}
|
||
|
|
template<typename T> void h(const T *);
|
||
|
|
void i() {
|
||
|
|
f(&i); // expected-error {{no matching function}}
|
||
|
|
g(&i);
|
||
|
|
h(&i); // expected-note {{here}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1589 { // dr1589: 3.7 c++11
|
||
|
|
// Ambiguous ranking of list-initialization sequences
|
||
|
|
|
||
|
|
void f0(long, int=0); // Would makes selection of #0 ambiguous
|
||
|
|
void f0(long); // #0
|
||
|
|
void f0(std::initializer_list<int>); // #00
|
||
|
|
void g0() { f0({1L}); } // chooses #00
|
||
|
|
|
||
|
|
void f1(int, int=0); // Would make selection of #1 ambiguous
|
||
|
|
void f1(int); // #1
|
||
|
|
void f1(std::initializer_list<long>); // #2
|
||
|
|
void g1() { f1({42}); } // chooses #2
|
||
|
|
|
||
|
|
void f2(std::pair<const char*, const char*>, int = 0); // Would makes selection of #3 ambiguous
|
||
|
|
void f2(std::pair<const char*, const char*>); // #3
|
||
|
|
void f2(std::initializer_list<std::string>); // #4
|
||
|
|
void g2() { f2({"foo","bar"}); } // chooses #4
|
||
|
|
|
||
|
|
namespace with_error {
|
||
|
|
void f0(long); // #0
|
||
|
|
void f0(std::initializer_list<int>); // #00 expected-note {{candidate function}}
|
||
|
|
void f0(std::initializer_list<int>, int = 0); // expected-note {{candidate function}}
|
||
|
|
void g0() { f0({1L}); } // expected-error{{call to 'f0' is ambiguous}}
|
||
|
|
|
||
|
|
void f1(int); // #1
|
||
|
|
void f1(std::initializer_list<long>); // #2 expected-note {{candidate function}}
|
||
|
|
void f1(std::initializer_list<long>, int = 0); // expected-note {{candidate function}}
|
||
|
|
void g1() { f1({42}); } // expected-error{{call to 'f1' is ambiguous}}
|
||
|
|
|
||
|
|
void f2(std::pair<const char*, const char*>); // #3
|
||
|
|
void f2(std::initializer_list<std::string>); // #4 expected-note {{candidate function}}
|
||
|
|
void f2(std::initializer_list<std::string>, int = 0); // expected-note {{candidate function}}
|
||
|
|
void g2() { f2({"foo","bar"}); } // expected-error{{call to 'f2' is ambiguous}}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // dr1589
|
||
|
|
|
||
|
|
namespace dr1591 { //dr1591. Deducing array bound and element type from initializer list
|
||
|
|
template<class T, int N> int h(T const(&)[N]);
|
||
|
|
int X = h({1,2,3}); // T deduced to int, N deduced to 3
|
||
|
|
|
||
|
|
template<class T> int j(T const(&)[3]);
|
||
|
|
int Y = j({42}); // T deduced to int, array bound not considered
|
||
|
|
|
||
|
|
struct Aggr { int i; int j; };
|
||
|
|
template<int N> int k(Aggr const(&)[N]); //expected-note{{not viable}}
|
||
|
|
int Y0 = k({1,2,3}); //expected-error{{no matching function}}
|
||
|
|
int Z = k({{1},{2},{3}}); // OK, N deduced to 3
|
||
|
|
|
||
|
|
template<int M, int N> int m(int const(&)[M][N]);
|
||
|
|
int X0 = m({{1,2},{3,4}}); // M and N both deduced to 2
|
||
|
|
|
||
|
|
template<class T, int N> int n(T const(&)[N], T);
|
||
|
|
int X1 = n({{1},{2},{3}},Aggr()); // OK, T is Aggr, N is 3
|
||
|
|
|
||
|
|
|
||
|
|
namespace check_multi_dim_arrays {
|
||
|
|
template<class T, int N, int M, int O> int ***f(const T (&a)[N][M][O]); //expected-note{{deduced conflicting values}}
|
||
|
|
template<class T, int N, int M> int **f(const T (&a)[N][M]); //expected-note{{couldn't infer}}
|
||
|
|
|
||
|
|
template<class T, int N> int *f(const T (&a)[N]); //expected-note{{couldn't infer}}
|
||
|
|
int ***p3 = f({ { {1,2}, {3, 4} }, { {5,6}, {7, 8} }, { {9,10}, {11, 12} } });
|
||
|
|
int ***p33 = f({ { {1,2}, {3, 4} }, { {5,6}, {7, 8} }, { {9,10}, {11, 12, 13} } }); //expected-error{{no matching}}
|
||
|
|
int **p2 = f({ {1,2,3}, {3, 4, 5} });
|
||
|
|
int **p22 = f({ {1,2}, {3, 4} });
|
||
|
|
int *p1 = f({1, 2, 3});
|
||
|
|
}
|
||
|
|
namespace check_multi_dim_arrays_rref {
|
||
|
|
template<class T, int N, int M, int O> int ***f(T (&&a)[N][M][O]); //expected-note{{deduced conflicting values}}
|
||
|
|
template<class T, int N, int M> int **f(T (&&a)[N][M]); //expected-note{{couldn't infer}}
|
||
|
|
|
||
|
|
template<class T, int N> int *f(T (&&a)[N]); //expected-note{{couldn't infer}}
|
||
|
|
int ***p3 = f({ { {1,2}, {3, 4} }, { {5,6}, {7, 8} }, { {9,10}, {11, 12} } });
|
||
|
|
int ***p33 = f({ { {1,2}, {3, 4} }, { {5,6}, {7, 8} }, { {9,10}, {11, 12, 13} } }); //expected-error{{no matching}}
|
||
|
|
int **p2 = f({ {1,2,3}, {3, 4, 5} });
|
||
|
|
int **p22 = f({ {1,2}, {3, 4} });
|
||
|
|
int *p1 = f({1, 2, 3});
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace check_arrays_of_init_list {
|
||
|
|
template<class T, int N> float *f(const std::initializer_list<T> (&)[N]);
|
||
|
|
template<class T, int N> double *f(const T(&)[N]);
|
||
|
|
double *p = f({1, 2, 3});
|
||
|
|
float *fp = f({{1}, {1, 2}, {1, 2, 3}});
|
||
|
|
}
|
||
|
|
namespace core_reflector_28543 {
|
||
|
|
|
||
|
|
template<class T, int N> int *f(T (&&)[N]); // #1
|
||
|
|
template<class T> char *f(std::initializer_list<T> &&); //#2
|
||
|
|
template<class T, int N, int M> int **f(T (&&)[N][M]); //#3 expected-note{{candidate}}
|
||
|
|
template<class T, int N> char **f(std::initializer_list<T> (&&)[N]); //#4 expected-note{{candidate}}
|
||
|
|
|
||
|
|
template<class T> short *f(T (&&)[2]); //#5
|
||
|
|
|
||
|
|
template<class T> using Arr = T[];
|
||
|
|
|
||
|
|
char *pc = f({1, 2, 3}); // OK prefer #2 via 13.3.3.2 [over.ics.rank]
|
||
|
|
char *pc2 = f({1, 2}); // #2 also
|
||
|
|
int *pi = f(Arr<int>{1, 2, 3}); // OK prefer #1
|
||
|
|
|
||
|
|
void *pv1 = f({ {1, 2, 3}, {4, 5, 6} }); // expected-error{{ambiguous}} btw 3 & 4
|
||
|
|
char **pcc = f({ {1}, {2, 3} }); // OK #4
|
||
|
|
|
||
|
|
short *ps = f(Arr<int>{1, 2}); // OK #5
|
||
|
|
}
|
||
|
|
} // dr1591
|
||
|
|
|
||
|
|
#endif
|