Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: cddcf8734e
Fetching contributors…

Cannot retrieve contributors at this time

113 lines (95 sloc) 2.458 kb
#include "../src/typeinfo.h"
#include "test.h"
#include <stdio.h>
struct Virt1;
struct Virt2;
struct Diamond;
struct Virt1a;
struct Virt2a;
struct Diamond2;
struct Root
{
int test;
void * foo;
virtual Virt1 *as_v1() { return 0; }
virtual Virt2 *as_v2() { return 0; }
virtual Diamond *as_diamond() { return 0; }
virtual Virt1a *as_v1a() { return 0; }
virtual Virt2a *as_v2a() { return 0; }
virtual Diamond2 *as_diamond2() { return 0; }
};
struct Sub1 : public Root
{
double a;
};
struct Sub2 : public Sub1
{
float ignored;
};
struct Virt1a : public virtual Root
{
int b;
virtual Virt1a *as_v1a() { return this; }
};
struct Virt2a : public virtual Root
{
int b;
virtual Virt2a *as_v2a() { return this; }
};
struct Virt1 : public virtual Virt1a
{
double a;
virtual Virt1 *as_v1() { return this; }
};
struct Virt2 : public virtual Virt2a
{
double b;
virtual Virt2 *as_v2() { return this; }
};
struct Diamond : public virtual Virt1, public virtual Virt2
{
int c;
virtual Diamond *as_diamond() { return this; }
};
struct Diamond2 : public virtual Virt1a, public virtual Virt2a
{
int c;
virtual Diamond2 *as_diamond2() { return this; }
};
void test_type_info(void)
{
Sub2 sub2;
Root root;
Virt1 virt1;
Diamond diamond;
Root *b = &sub2;
Root *f = &sub2;
Root *s2 = &sub2;
Root *b2 = &root;
Root *v1 = &virt1;
Virt1 *d1 = &diamond;
Root *up = &diamond;
b->test = 12;
f->test = 12;
b2->test = 12;
s2->test = 12;
TEST(12 == b->test, "Setting field");
b = dynamic_cast<Root*>(f);
TEST(12 == b->test, "Casting Sub1 to superclass");
((Sub1*)(s2))->a = 12;
TEST(12 == dynamic_cast<Sub1*>(s2)->a, "Casting Sub2 -> Sub1");
v1->as_v1()->a = 12;
TEST(12 == dynamic_cast<Virt1*>(v1)->a, "Casting Root (Virt1) -> Virt1");
d1->as_v1()->test = 12;
TEST(12 == d1->as_v2()->test, "Accessing virt2 via vtable method");
TEST(12 == dynamic_cast<Virt2*>(d1)->test, "Casting diamond to virt2");
TEST(12 == dynamic_cast<Diamond*>(d1)->test, "casting diamond to diamond");
Diamond2 diamond2;
Root *d2 = &diamond2;
d2->test = 12;
TEST(12 == dynamic_cast<Diamond2*>(d2)->test, "Casting Diamond2 to Diamond2");
TEST(12 == dynamic_cast<Virt2a*>(d2)->test, "Casting Diamond2 to Virt2a");
TEST(&diamond == dynamic_cast<Diamond*>(up), "Downcasting root-pointer to diamond");
TEST(0 == dynamic_cast<Diamond*>(&root), "Downcasting root to diamond");
TEST(0 == dynamic_cast<Sub1*>(b2), "Casting Root to Sub1 (0 expected)");
}
Jump to Line
Something went wrong with that request. Please try again.