1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
7 static const int test0 = __alignof__(x); // expected-error {{invalid application of 'alignof' to a field of a class still being defined}}
8 static const int test1 = __alignof__(S0::x); // expected-error {{invalid application of 'alignof' to a field of a class still being defined}}
9 auto test2() -> char(&)[__alignof__(x)]; // expected-error {{invalid application of 'alignof' to a field of a class still being defined}}
12 struct S1; // expected-note 6 {{forward declaration}}
14 const int test3 = __alignof__(s1); // expected-error {{invalid application of 'alignof' to an incomplete type 'S1'}}
21 int test4 = __alignof__(x); // ok
22 int test5 = __alignof__(s); // expected-error {{invalid application of 'alignof' to an incomplete type 'S1'}}
25 const int test6 = __alignof__(S2::x);
26 const int test7 = __alignof__(S2::s); // expected-error {{invalid application of 'alignof' to an incomplete type 'S1'}}
28 // Arguably, these should fail like the S1 cases do: the alignment of
29 // 's2.x' should depend on the alignment of both x-within-S2 and
30 // s2-within-S3 and thus require 'S3' to be complete. If we start
31 // doing the appropriate recursive walk to do that, we should make
32 // sure that these cases don't explode.
36 static const int test8 = __alignof__(s2.x);
37 static const int test9 = __alignof__(s2.s); // expected-error {{invalid application of 'alignof' to an incomplete type 'S1'}}
38 auto test10() -> char(&)[__alignof__(s2.x)];
39 static const int test11 = __alignof__(S3::s2.x);
40 static const int test12 = __alignof__(S3::s2.s); // expected-error {{invalid application of 'alignof' to an incomplete type 'S1'}}
41 auto test13() -> char(&)[__alignof__(s2.x)];
44 // Same reasoning as S3.
49 static const int test0 = __alignof__(x);
50 static const int test1 = __alignof__(S0::x);
51 auto test2() -> char(&)[__alignof__(x)];
54 // Regression test for asking for the alignment of a field within an invalid
57 S1 s; // expected-error {{incomplete type}}
60 const int test8 = __alignof__(S5::x);
62 long long int test14[2];
64 static_assert(alignof(test14) == 8, "foo"); // expected-warning {{'alignof' applied to an expression is a GNU extension}}