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| // RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++1z %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
namespace std {
__extension__ typedef __SIZE_TYPE__ size_t;
template<typename T> struct initializer_list {
const T *p; size_t n;
initializer_list(const T *p, size_t n);
};
}
namespace dr1004 { // dr1004: 5
template<typename> struct A {};
template<typename> struct B1 {};
template<template<typename> class> struct B2 {};
template<typename X> void f(); // expected-note {{[with X = dr1004::A<int>]}}
template<template<typename> class X> void f(); // expected-note {{[with X = A]}}
template<template<typename> class X> void g(); // expected-note {{[with X = A]}}
template<typename X> void g(); // expected-note {{[with X = dr1004::A<int>]}}
struct C : A<int> {
B1<A> b1a;
B2<A> b2a;
void h() {
f<A>(); // expected-error {{ambiguous}}
g<A>(); // expected-error {{ambiguous}}
}
};
// This example (from the standard) is actually ill-formed, because
// name lookup of "T::template A" names the constructor.
template<class T, template<class> class U = T::template A> struct Third { }; // expected-error {{is a constructor name}}
Third<A<int> > t; // expected-note {{in instantiation of default argument}}
}
namespace dr1048 { // dr1048: 3.6
struct A {};
const A f();
A g();
typedef const A CA;
#if __cplusplus >= 201103L
// ok: we deduce non-const A in each case.
A &&a = [] (int n) {
while (1) switch (n) {
case 0: return f();
case 1: return g();
case 2: return A();
case 3: return CA();
}
} (0);
#endif
}
namespace dr1054 { // dr1054: no
// FIXME: Test is incomplete.
struct A {} volatile a;
void f() {
// FIXME: This is wrong: an lvalue-to-rvalue conversion is applied here,
// which copy-initializes a temporary from 'a'. Therefore this is
// ill-formed because A does not have a volatile copy constructor.
// (We might want to track this aspect under dr1383 instead?)
a; // expected-warning {{assign into a variable to force a volatile load}}
}
}
namespace dr1070 { // dr1070: 3.5
#if __cplusplus >= 201103L
struct A {
A(std::initializer_list<int>);
};
struct B {
int i;
A a;
};
B b = {1};
struct C {
std::initializer_list<int> a;
B b;
std::initializer_list<double> c;
};
C c = {};
#endif
}
|