warn-msvc-enum-bitfield.cpp source code [clang_source_code/test/SemaCXX/warn-msvc-enum-bitfield.cpp]

1	// RUN: %clang_cc1 -fsyntax-only -Wsigned-enum-bitfield -verify %s --std=c++11
2
3	// Enums used in bitfields with no explicitly specified underlying type.
4	void test0() {
5	enum E { E1, E2 };
6	enum F { F1, F2 };
7	struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
8
9	s.e1 = E1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum E an unsigned underlying type to make this code portable}}
10	s.f1 = F1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum F an unsigned underlying type to make this code portable}}
11
12	s.e2 = E2;
13	s.f2 = F2;
14	}
15
16	// Enums used in bitfields with an explicit signed underlying type.
17	void test1() {
18	enum E : signed { E1, E2 };
19	enum F : long { F1, F2 };
20	struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
21
22	s.e1 = E1;
23	s.f1 = F1;
24
25	s.e2 = E2;
26	s.f2 = F2;
27	}
28
29	// Enums used in bitfields with an explicitly unsigned underlying type.
30	void test3() {
31	enum E : unsigned { E1, E2 };
32	enum F : unsigned long { F1, F2 };
33	struct { E e1 : 1; E e2; F f1 : 1; F f2; } s;
34
35	s.e1 = E1;
36	s.f1 = F1;
37
38	s.e2 = E2;
39	s.f2 = F2;
40	}
41

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