1 // { dg-do run } 2 // { dg-options "-w" } 3 // Copyright (C) 1999, 2000 Free Software Foundation, Inc. 4 // Contributed by Nathan Sidwell 29 Aug 1999 <nathan (at) acm.org> 5 6 // We cannot catch an ambiguous base class. 7 // -- public, << private, == virtual 8 9 // D--B==A 10 // +--C==A 11 // +--AA-A 12 13 14 struct A { int m; }; 15 struct B : virtual A { int m; }; 16 struct C : virtual A { int m; }; 17 struct AA : A { int m; }; 18 struct D : B, C, AA { int m; }; 19 20 void fna(A *obj) { throw obj; } 21 void fnb(B *obj) { throw obj; } 22 void fnc(C *obj) { throw obj; } 23 void fnd(D *obj) { throw obj; } 24 void fnaa(AA *obj) { throw obj; } 25 26 extern "C" void abort(); 27 28 void check(D *d) 29 { 30 int caught; 31 32 // try with whole object 33 caught = 0; 34 try { fnd(d); } 35 catch(A *p) { abort(); } // A is ambiguous 36 catch(D *p) { caught = 1; if (p != d) abort();} 37 catch(...) { abort(); } 38 if (!caught) abort(); 39 40 caught = 0; 41 try { fnd(d); } 42 catch(A *p) { abort(); } // A is ambiguous 43 catch(B *p) { caught = 1; if (p != d) abort();} 44 catch(...) { abort(); } 45 if (!caught) abort(); 46 47 caught = 0; 48 try { fnd(d); } 49 catch(A *p) { abort(); } // A is ambiguous 50 catch(C *p) { caught = 1; if (p != d) abort();} 51 catch(...) { abort(); } 52 if (!caught) abort(); 53 54 caught = 0; 55 try { fnd(d); } 56 catch(A *p) { abort(); } // A is ambiguous 57 catch(AA *p) { caught = 1; if (p != d) abort();} 58 catch(...) { abort(); } 59 if (!caught) abort(); 60 61 // try with an A object 62 caught = 0; 63 try { fna((B *)d); } 64 catch(B *p) { abort(); } // throw type is static type 65 catch(A *p) { caught = 1; if (p != (B *)d) abort();} 66 catch(...) { abort(); } 67 if (!caught) abort(); 68 69 caught = 0; 70 try { fna((C *)d); } 71 catch(C *p) { abort(); } // throw type is static type 72 catch(A *p) { caught = 1; if (p != (C *)d) abort();} 73 catch(...) { abort(); } 74 if (!caught) abort(); 75 76 caught = 0; 77 try { fna((AA *)d); } 78 catch(AA *p) { abort(); } // throw type is static type 79 catch(A *p) { caught = 1; if (p != (AA *)d) abort();} 80 catch(...) { abort(); } 81 if (!caught) abort(); 82 83 // try with B object 84 caught = 0; 85 try { fnb((B *)d); } 86 catch(A *p) { caught = 1; if (p != (B *)d) abort();} 87 catch(...) { abort(); } 88 if (!caught) abort(); 89 90 caught = 0; 91 try { fnb((B *)d); } 92 catch(B *p) { caught = 1; if (p != d) abort();} 93 catch(...) { abort(); } 94 if (!caught) abort(); 95 96 caught = 0; 97 try { fnb((B *)d); } 98 catch(C *p) { abort(); } 99 catch(D *p) { abort(); } 100 catch(...) { caught =1; } 101 if (!caught) abort(); 102 103 // try with C object 104 caught = 0; 105 try { fnc((C *)d); } 106 catch(A *p) { caught = 1; if (p != (C *)d) abort();} 107 catch(...) { abort(); } 108 if (!caught) abort(); 109 110 caught = 0; 111 try { fnc((C *)d); } 112 catch(C *p) { caught = 1; if (p != d) abort();} 113 catch(...) { abort(); } 114 if (!caught) abort(); 115 116 caught = 0; 117 try { fnc((C *)d); } 118 catch(B *p) { abort(); } 119 catch(D *p) { abort(); } 120 catch(...) { caught =1; } 121 if (!caught) abort(); 122 123 // try with AA object 124 caught = 0; 125 try { fnaa((AA *)d); } 126 catch(A *p) { caught = 1; if (p != (AA *)d) abort();} 127 catch(...) { abort(); } 128 if (!caught) abort(); 129 130 caught = 0; 131 try { fnaa((AA *)d); } 132 catch(AA *p) { caught = 1; if (p != d) abort();} 133 catch(...) { abort(); } 134 if (!caught) abort(); 135 136 caught = 0; 137 try { fnaa((AA *)d); } 138 catch(C *p) { abort(); } 139 catch(B *p) { abort(); } 140 catch(D *p) { abort(); } 141 catch(...) { caught =1; } 142 if (!caught) abort(); 143 144 return; 145 } 146 147 int main () 148 { 149 D d; 150 check (&d); // try with an object 151 check ((D *)0); // try with no object 152 153 return 0; 154 } 155
