64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
// RUN: %clang_cc1 -std=c++1y %s -verify
|
|
|
|
namespace in_class_init {
|
|
union U { char c; double d = 4.0; };
|
|
constexpr U u1 = U();
|
|
constexpr U u2 {};
|
|
constexpr U u3 { 'x' };
|
|
static_assert(u1.d == 4.0, "");
|
|
static_assert(u2.d == 4.0, "");
|
|
static_assert(u3.c == 'x', "");
|
|
|
|
struct A {
|
|
int n = 5;
|
|
int m = n * 3;
|
|
union {
|
|
char c;
|
|
double d = 4.0;
|
|
};
|
|
};
|
|
constexpr A a1 {};
|
|
constexpr A a2 { 8 };
|
|
constexpr A a3 { 1, 2, { 3 } };
|
|
constexpr A a4 { 1, 2, { .d = 3.0 } };
|
|
static_assert(a1.d == 4.0, "");
|
|
static_assert(a2.m == 24, "");
|
|
static_assert(a2.d == 4.0, "");
|
|
static_assert(a3.c == 3, "");
|
|
static_assert(a3.d == 4.0, ""); // expected-error {{constant expression}} expected-note {{active member 'c'}}
|
|
static_assert(a4.d == 3.0, "");
|
|
|
|
struct B {
|
|
int n;
|
|
constexpr int f() { return n * 5; }
|
|
int m = f();
|
|
};
|
|
B b1 {};
|
|
constexpr B b2 { 2 };
|
|
B b3 { 1, 2 };
|
|
static_assert(b2.m == 10, "");
|
|
|
|
struct C {
|
|
int k;
|
|
union {
|
|
int l = k; // expected-error {{invalid use of non-static}}
|
|
};
|
|
};
|
|
}
|
|
|
|
namespace nested_aggregate_init {
|
|
struct A {
|
|
int n = 5;
|
|
int b = n * 3;
|
|
};
|
|
struct B {
|
|
constexpr B(int k) : d(1.23), k(k) {}
|
|
// Within this aggregate, both this object's 'this' and the temporary's
|
|
// 'this' are used.
|
|
constexpr int f() const { return A{k}.b; }
|
|
double d;
|
|
int k;
|
|
};
|
|
static_assert(B(6).f() == 18, "");
|
|
}
|