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