43 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -O0 -verify -Wno-vla %s2// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -pedantic-errors -O0 -verify=pe %s3 4// expected-no-diagnostics5 6extern "C" int printf(const char*, ...);7 8static int N;9struct S {10 S() __attribute__ ((nothrow)) { printf("%d: S()\n", ++N); }11 ~S() __attribute__ ((nothrow)) { printf("%d: ~S()\n", N--); }12 int n[17];13};14 15void 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 21void 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 30int 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