cast.c source code [clang_source_code/test/Sema/cast.c]

1	// RUN: %clang_cc1 -fsyntax-only -triple x86_64-unknown-unknown %s -verify
2
3	typedef struct { unsigned long bits[(((1) + (64) - 1) / (64))]; } cpumask_t;
4	cpumask_t x;
5	void foo() {
6	(void)x;
7	}
8	void bar() {
9	char* a;
10	double b;
11	b = (double)a; // expected-error {{pointer cannot be cast to type}}
12	a = (char*)b; // expected-error {{cannot be cast to a pointer type}}
13	}
14
15	long bar1(long *next) {
16	return (long)(*next)++;
17	}
18
19	typedef _Bool Bool;
20	typedef int Int;
21	typedef long Long;
22	typedef float Float;
23	typedef double Double;
24	typedef _Complex int CInt;
25	typedef _Complex long CLong;
26	typedef _Complex float CFloat;
27	typedef _Complex double CDouble;
28	typedef void *VoidPtr;
29	typedef char *CharPtr;
30
31	void testBool(Bool v) {
32	(void) (Bool) v;
33	(void) (Int) v;
34	(void) (Long) v;
35	(void) (Float) v;
36	(void) (Double) v;
37	(void) (CInt) v;
38	(void) (CLong) v;
39	(void) (CFloat) v;
40	(void) (CDouble) v;
41	(void) (VoidPtr) v;
42	(void) (CharPtr) v;
43	}
44
45	void testInt(Int v) {
46	(void) (Bool) v;
47	(void) (Int) v;
48	(void) (Long) v;
49	(void) (Float) v;
50	(void) (Double) v;
51	(void) (CInt) v;
52	(void) (CLong) v;
53	(void) (CFloat) v;
54	(void) (CDouble) v;
55	(void) (VoidPtr) v; // expected-warning{{cast to 'VoidPtr' (aka 'void *') from smaller integer type 'Int' (aka 'int')}}
56	(void) (CharPtr) v; // expected-warning{{cast to 'CharPtr' (aka 'char *') from smaller integer type 'Int' (aka 'int')}}
57
58	// Test that casts to void* can be controlled separately
59	// from other -Wint-to-pointer-cast warnings.
60	#pragma clang diagnostic push
61	#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast"
62	(void) (VoidPtr) v; // no-warning
63	(void) (CharPtr) v; // expected-warning{{cast to 'CharPtr' (aka 'char *') from smaller integer type 'Int' (aka 'int')}}
64	#pragma clang diagnostic pop
65	}
66
67	void testLong(Long v) {
68	(void) (Bool) v;
69	(void) (Int) v;
70	(void) (Long) v;
71	(void) (Float) v;
72	(void) (Double) v;
73	(void) (CInt) v;
74	(void) (CLong) v;
75	(void) (CFloat) v;
76	(void) (CDouble) v;
77	(void) (VoidPtr) v;
78	(void) (CharPtr) v;
79	}
80
81	void testFloat(Float v) {
82	(void) (Bool) v;
83	(void) (Int) v;
84	(void) (Long) v;
85	(void) (Float) v;
86	(void) (Double) v;
87	(void) (CInt) v;
88	(void) (CLong) v;
89	(void) (CFloat) v;
90	(void) (CDouble) v;
91	}
92
93	void testDouble(Double v) {
94	(void) (Bool) v;
95	(void) (Int) v;
96	(void) (Long) v;
97	(void) (Float) v;
98	(void) (Double) v;
99	(void) (CInt) v;
100	(void) (CLong) v;
101	(void) (CFloat) v;
102	(void) (CDouble) v;
103	}
104
105	void testCI(CInt v) {
106	(void) (Bool) v;
107	(void) (Int) v;
108	(void) (Long) v;
109	(void) (Float) v;
110	(void) (Double) v;
111	(void) (CInt) v;
112	(void) (CLong) v;
113	(void) (CFloat) v;
114	(void) (CDouble) v;
115	}
116
117	void testCLong(CLong v) {
118	(void) (Bool) v;
119	(void) (Int) v;
120	(void) (Long) v;
121	(void) (Float) v;
122	(void) (Double) v;
123	(void) (CInt) v;
124	(void) (CLong) v;
125	(void) (CFloat) v;
126	(void) (CDouble) v;
127	}
128
129	void testCFloat(CFloat v) {
130	(void) (Bool) v;
131	(void) (Int) v;
132	(void) (Long) v;
133	(void) (Float) v;
134	(void) (Double) v;
135	(void) (CInt) v;
136	(void) (CLong) v;
137	(void) (CFloat) v;
138	(void) (CDouble) v;
139	}
140
141	void testCDouble(CDouble v) {
142	(void) (Bool) v;
143	(void) (Int) v;
144	(void) (Long) v;
145	(void) (Float) v;
146	(void) (Double) v;
147	(void) (CInt) v;
148	(void) (CLong) v;
149	(void) (CFloat) v;
150	(void) (CDouble) v;
151	}
152
153	void testVoidPtr(VoidPtr v) {
154	(void) (Bool) v;
155	(void) (Int) v;
156	(void) (Long) v;
157	(void) (VoidPtr) v;
158	(void) (CharPtr) v;
159	}
160
161	void testCharPtr(CharPtr v) {
162	(void) (Bool) v;
163	(void) (Int) v;
164	(void) (Long) v;
165	(void) (VoidPtr) v;
166	(void) (CharPtr) v;
167	}
168
169	typedef enum { x_a, x_b } X;
170	void *intToPointerCast2(X x) {
171	return (void*)x;
172	}
173
174	void *intToPointerCast3() {
175	return (void*)(1 + 3);
176	}
177

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