Viewing file:  Warray-bounds-19.C (1.7 KB) -rw-r--r--
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/* PR middle-end/98266 - bogus array subscript is partly outside array
bounds on virtual inheritance
{ dg-do compile }
{ dg-options "-O2 -Wall" } */
void* operator new (__SIZE_TYPE__, void *p) { return p; }
void* operator new[] (__SIZE_TYPE__, void *p) { return p; }
struct A
{
virtual ~A ();
int ai;
};
struct B: virtual A { };
// Exercise access to base members by ctor of the most derived class.
struct C1: virtual A // { dg-bogus "\\\[-Warray-bounds" }
{
int c1i;
C1 ();
};
struct D1: virtual B, virtual C1
{
D1 () { ai = 0; c1i = 1; };
};
void sink (void*);
void nowarn_derived_ctor_access_decl ()
{
D1 d1;
sink (&d1);
}
void nowarn_derived_ctor_access_new ()
{
D1 *p = new D1;
sink (p);
}
void nowarn_derived_ctor_access_placement_new ()
{
char a[sizeof (D1)];
D1 *p = new (a) D1;
sink (p);
}
void nowarn_derived_ctor_access_new_array ()
{
D1 *p = new D1[2];
sink (p);
}
void nowarn_derived_ctor_access_placement_new_array ()
{
char a[sizeof (D1) * 2];
D1 *p = new (a) D1[2];
sink (p);
}
// Exercise access to base members by ctor of the second most derived class.
struct C2: virtual A
{
int c2i;
~C2 () { ai = 0; c2i = 1; } // { dg-bogus "\\\[-Warray-bounds"
};
struct D2: virtual B, virtual C2
{
D2 ();
};
void nowarn_base_dtor_access_decl ()
{
D2 d2;
sink (&d2);
}
void nowarn_base_dtor_access_new ()
{
D2 *p = new D2;
sink (p);
}
void nowarn_base_dtor_access_placement_new ()
{
char a[sizeof (D2)];
D2 *p = new (a) D2;
sink (p);
}
void nowarn_base_dtor_access_new_array ()
{
D2 *p = new D2[2];
sink (p);
}
void nowarn_base_dtor_access_placement_new_array ()
{
char a[sizeof (D2) * 2];
D2 *p = new (a) D2[2];
sink (p);
}
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