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// { 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;
}
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