URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [testsuite/] [g++.old-deja/] [g++.jason/] [dcast3.C] - Diff between revs 305 and 338

Rev 305	Rev 338
`// { dg-do run }`	`// { dg-do run }`
`// Testcase for tricky dynamic cast situations.`	`// Testcase for tricky dynamic cast situations.`

`struct A {`	`struct A {`
`virtual void f () { }`	`virtual void f () { }`
`};`	`};`

`struct B : public A { };`	`struct B : public A { };`
`struct C : public B { };`	`struct C : public B { };`
`struct D : public B { };`	`struct D : public B { };`
`struct E : public C, public D { };`	`struct E : public C, public D { };`

`struct B2 : public virtual A { };`	`struct B2 : public virtual A { };`
`struct C2 : public B2 { };`	`struct C2 : public B2 { };`
`struct D2 : public B2 { };`	`struct D2 : public B2 { };`
`struct E2 : public C2, public D2 { };`	`struct E2 : public C2, public D2 { };`

`int main ()`	`int main ()`
`{`	`{`
`E e;`	`E e;`
`E2 e2;`	`E2 e2;`

`A* ap = (C*)&e;`	`A* ap = (C*)&e;`

`// ap points to base subobject of unique B; succeeds`	`// ap points to base subobject of unique B; succeeds`
`if (dynamic_cast (ap) == 0)`	`if (dynamic_cast (ap) == 0)`
`return 1;`	`return 1;`

`ap = (C2*)&e2;`	`ap = (C2*)&e2;`
`// ap points to base subobject shared by two Bs; fails`	`// ap points to base subobject shared by two Bs; fails`
`if (dynamic_cast (ap) != 0)`	`if (dynamic_cast (ap) != 0)`
`return 2;`	`return 2;`
`}`	`}`