1 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 -triple=i686-pc-linux-gnu -pedantic
2
ugly_news(int * ip)3 void ugly_news(int *ip) {
4 (void)new int[-1]; // expected-error {{array size is negative}}
5 (void)new int[2000000000]; // expected-error {{array is too large}}
6 }
7
pr22845a()8 void pr22845a() {
9 constexpr int i = -1;
10 int *p = new int[i]; // expected-error {{array size is negative}}
11 }
12
pr22845b()13 void pr22845b() {
14 constexpr int i = 1;
15 int *p = new int[i]{1, 2}; // expected-error {{excess elements in array initializer}}
16 }
17
18 struct S {
19 S(int);
20 S();
21 ~S();
22 };
23
24 struct T { // expected-note 1+{{not viable}}
25 T(int); // expected-note 1+{{not viable}}
26 };
27
fn(int n)28 void fn(int n) {
29 (void) new int[2] {1, 2};
30 (void) new S[2] {1, 2};
31 (void) new S[3] {1, 2};
32 (void) new S[n] {};
33 // C++11 [expr.new]p19:
34 // If the new-expression creates an object or an array of objects of class
35 // type, access and ambiguity control are done for the allocation function,
36 // the deallocation function (12.5), and the constructor (12.1).
37 //
38 // Note that this happens even if the array bound is constant and the
39 // initializer initializes every array element.
40 //
41 // It's not clear that this is the intended interpretation, however -- we
42 // obviously don't want to check for a default constructor for 'new S(0)'.
43 // Instead, we only check for a default constructor in the case of an array
44 // new with a non-constant bound or insufficient initializers.
45 (void) new T[2] {1, 2}; // ok
46 (void) new T[3] {1, 2}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of array element 2}}
47 (void) new T[n] {1, 2}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of trailing array elements in runtime-sized array new}}
48 (void) new T[n] {}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of trailing array elements in runtime-sized array new}}
49 }
50
51 struct U {
52 T t; // expected-note 3{{in implicit initialization of field 't'}}
53 S s;
54 };
g(int n)55 void g(int n) {
56 // Aggregate initialization, brace-elision, and array new combine to create
57 // this monstrosity.
58 (void) new U[2] {1, 2}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of array element 1}}
59 (void) new U[2] {1, 2, 3}; // ok
60 (void) new U[2] {1, 2, 3, 4}; // ok
61 (void) new U[2] {1, 2, 3, 4, 5}; // expected-error {{excess elements in array initializer}}
62
63 (void) new U[n] {1, 2}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of trailing array elements}}
64 (void) new U[n] {1, 2, 3}; // expected-error {{no matching constructor}} expected-note {{in implicit initialization of trailing array elements}}
65 }
66