| // { dg-do run } |
| // { dg-options "-w" } |
| // Copyright (C) 1999, 2000 Free Software Foundation, Inc. |
| // Contributed by Nathan Sidwell 29 Aug 1999 <nathan@acm.org> |
| |
| // We cannot catch an ambiguous base class. Check with a non-virtual |
| // polymorphic public DAG. |
| // -- public, << private, == virtual |
| |
| // D--B--A |
| // +--C--A |
| |
| |
| struct A { int m; virtual ~A(){}}; |
| struct B : A { int m; }; |
| struct C : A { int m; }; |
| struct D : B, C { int m; }; |
| |
| void fna(A *obj) { throw obj; } |
| void fnb(B *obj) { throw obj; } |
| void fnc(C *obj) { throw obj; } |
| void fnd(D *obj) { throw obj; } |
| |
| extern "C" void abort(); |
| |
| void check(D *d) |
| { |
| int caught; |
| |
| // try with whole object |
| caught = 0; |
| try { fnd(d); } |
| catch(A *p) { abort(); } // A is ambiguous |
| catch(D *p) { caught = 1; if (p != d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnd(d); } |
| catch(A *p) { abort(); } // A is ambiguous |
| catch(B *p) { caught = 1; if (p != d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnd(d); } |
| catch(A *p) { abort(); } // A is ambiguous |
| catch(C *p) { caught = 1; if (p != d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| // try with an A object |
| caught = 0; |
| try { fna((B *)d); } |
| catch(B *p) { abort(); } // throw type is static type |
| catch(A *p) { caught = 1; if (p != (B *)d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fna((C *)d); } |
| catch(C *p) { abort(); } // throw type is static type |
| catch(A *p) { caught = 1; if (p != (C *)d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| // try with B object |
| caught = 0; |
| try { fnb((B *)d); } |
| catch(A *p) { caught = 1; if (p != (B *)d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnb((B *)d); } |
| catch(B *p) { caught = 1; if (p != d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnb((B *)d); } |
| catch(C *p) { abort(); } |
| catch(D *p) { abort(); } |
| catch(...) { caught =1; } |
| if (!caught) abort(); |
| |
| // try with C object |
| caught = 0; |
| try { fnc((C *)d); } |
| catch(A *p) { caught = 1; if (p != (C *)d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnc((C *)d); } |
| catch(C *p) { caught = 1; if (p != d) abort();} |
| catch(...) { abort(); } |
| if (!caught) abort(); |
| |
| caught = 0; |
| try { fnc((C *)d); } |
| catch(B *p) { abort(); } |
| catch(D *p) { abort(); } |
| catch(...) { caught =1; } |
| if (!caught) abort(); |
| |
| return; |
| } |
| |
| int main () |
| { |
| D d; |
| check (&d); // try with an object |
| check ((D *)0); // try with no object |
| |
| return 0; |
| } |