Class C

v2/engine/boehm_gc/tests/test_cpp.cc:86–111

class C: public gc_cleanup, public A {public:
    /* A collectable class with cleanup and virtual multiple inheritance. */

    C( int levelArg ): A( levelArg ), level( levelArg ) {
        nAllocated++;
        if (level > 0) {
            left = new C( level - 1 );
            right = new C( level - 1 );}
        else {
            left = right = 0;}}
    ~C() {
        this->A::Test( level );
        nFreed++;
        my_assert( level == 0 ? 
                   left == 0 && right == 0 :
                   level == left->level + 1 && level == right->level + 1 );
        left = right = 0;
        level = -123456;}
    static void Test() {
        my_assert( nFreed <= nAllocated && nFreed >= .8 * nAllocated );}

    static int nFreed;
    static int nAllocated;
    int level;
    C* left;
    C* right;};

int C::nFreed = 0;
int C::nAllocated = 0;