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1 //===------------------------- catch_ptr_02.cpp ---------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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173
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9 // UNSUPPORTED: no-exceptions
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150
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10
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11 #include <cassert>
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12
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13 // Clang emits warnings about exceptions of type 'Child' being caught by
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14 // an earlier handler of type 'Base'. Congrats clang, you've just
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15 // diagnosed the behavior under test.
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16 #if defined(__clang__)
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17 #pragma clang diagnostic ignored "-Wexceptions"
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18 #endif
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19
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20 #if __cplusplus < 201103L
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21 #define DISABLE_NULLPTR_TESTS
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22 #endif
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23
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24 struct A {};
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25 A a;
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26 const A ca = A();
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27
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28 void test1 ()
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29 {
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30 try
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31 {
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32 throw &a;
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33 assert(false);
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34 }
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35 catch ( const A* )
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36 {
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37 }
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38 catch ( A *)
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39 {
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40 assert (false);
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41 }
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42 }
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43
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44 void test2 ()
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45 {
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46 try
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47 {
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48 throw &a;
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49 assert(false);
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50 }
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51 catch ( A* )
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52 {
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53 }
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54 catch ( const A *)
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55 {
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56 assert (false);
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57 }
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58 }
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59
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60 void test3 ()
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61 {
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62 try
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63 {
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64 throw &ca;
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65 assert(false);
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66 }
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67 catch ( const A* )
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68 {
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69 }
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70 catch ( A *)
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71 {
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72 assert (false);
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73 }
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74 }
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75
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76 void test4 ()
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77 {
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78 try
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79 {
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80 throw &ca;
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81 assert(false);
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82 }
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83 catch ( A *)
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84 {
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85 assert (false);
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86 }
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87 catch ( const A* )
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88 {
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89 }
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90 }
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91
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92 struct base1 {int x;};
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93 struct base2 {int x;};
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94 struct derived : base1, base2 {};
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95
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96 void test5 ()
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97 {
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98 try
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99 {
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100 throw (derived*)0;
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101 assert(false);
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102 }
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103 catch (base2 *p) {
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104 assert (p == 0);
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105 }
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106 catch (...)
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107 {
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108 assert (false);
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109 }
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110 }
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111
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112 void test6 ()
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113 {
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114 #if !defined(DISABLE_NULLPTR_TESTS)
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115 try
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116 {
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117 throw nullptr;
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118 assert(false);
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119 }
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120 catch (base2 *p) {
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121 assert (p == nullptr);
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122 }
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123 catch (...)
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124 {
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125 assert (false);
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126 }
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127 #endif
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128 }
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129
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130 void test7 ()
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131 {
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132 try
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133 {
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134 throw (derived*)12;
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135 assert(false);
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136 }
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137 catch (base2 *p) {
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138 assert ((unsigned long)p == 12+sizeof(base1));
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139 }
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140 catch (...)
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141 {
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142 assert (false);
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143 }
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144 }
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145
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146
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147 struct vBase {};
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148 struct vDerived : virtual public vBase {};
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149
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150 void test8 ()
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151 {
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152 vDerived derived;
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153 try
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154 {
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155 throw &derived;
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156 assert(false);
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157 }
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158 catch (vBase *p) {
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159 assert(p != 0);
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160 }
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161 catch (...)
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162 {
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163 assert (false);
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164 }
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165 }
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166
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167 void test9 ()
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168 {
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169 #if !defined(DISABLE_NULLPTR_TESTS)
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170 try
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171 {
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172 throw nullptr;
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173 assert(false);
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174 }
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175 catch (vBase *p) {
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176 assert(p == 0);
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177 }
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178 catch (...)
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179 {
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180 assert (false);
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181 }
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182 #endif
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183 }
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184
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185 void test10 ()
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186 {
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187 try
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188 {
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189 throw (vDerived*)0;
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190 assert(false);
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191 }
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192 catch (vBase *p) {
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193 assert(p == 0);
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194 }
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195 catch (...)
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196 {
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197 assert (false);
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198 }
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199 }
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200
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201 int main()
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202 {
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203 test1();
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204 test2();
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205 test3();
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206 test4();
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207 test5();
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208 test6();
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209 test7();
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210 test8();
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211 test9();
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212 test10();
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213 }
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