1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -O0 -verify -Wno-vla %s
2 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -pedantic-errors -O0 -verify=pe %s
3
4 // expected-no-diagnostics
5
6 extern "C" int printf(const char*, ...);
7
8 static int N;
9 struct S {
SS10 S() __attribute__ ((nothrow)) { printf("%d: S()\n", ++N); }
~SS11 ~S() __attribute__ ((nothrow)) { printf("%d: ~S()\n", N--); }
12 int n[17];
13 };
14
print(int n,int a,int b,int c,int d)15 void print(int n, int a, int b, int c, int d) {
16 printf("n=%d\n,sizeof(S)=%d\nsizeof(array_t[0][0])=%d\nsizeof(array_t[0])=%d\nsizeof(array_t)=%d\n",
17 n, a, b, c, d);
18 if (n == 2) throw(n);
19 }
20
test(int n)21 void test(int n) {
22 S array_t[n][n+1]; // pe-error 2{{variable length arrays in C++ are a Clang extension}} pe-note 2{{parameter}} pe-note@-1 2{{here}}
23 int sizeof_S = sizeof(S);
24 int sizeof_array_t_0_0 = sizeof(array_t[0][0]);
25 int sizeof_array_t_0 = sizeof(array_t[0]);
26 int sizeof_array_t = sizeof(array_t);
27 print(n, sizeof_S, sizeof_array_t_0_0, sizeof_array_t_0, sizeof_array_t);
28 }
29
main()30 int main()
31 {
32 try {
33 test(2);
34 } catch(int e) {
35 printf("exception %d\n", e);
36 }
37 try {
38 test(3);
39 } catch(int e) {
40 printf("exception %d", e);
41 }
42 }
43