Esempi in C++ (Cpp) per Counted

Esempio n. 1

File: destroy.pass.cpp Progetto: Aj0Ay/libcxx

int main()
{
    using It = forward_iterator<Counted*>;
    const int N = 5;
    alignas(Counted) char pool[sizeof(Counted)*N] = {};
    Counted* p = (Counted*)pool;
    std::uninitialized_fill(p, p+N, Counted());
    assert(Counted::count == 5);
    std::destroy(p, p+1);
    p += 1;
    assert(Counted::count == 4);
    std::destroy(It(p), It(p + 4));
    assert(Counted::count == 0);
}

Esempio n. 2

File: destroy_n.pass.cpp Progetto: ingowald/llvm-project

int main(int, char**)
{
    using It = forward_iterator<Counted*>;
    const int N = 5;
    alignas(Counted) char pool[sizeof(Counted)*N] = {};
    Counted* p = (Counted*)pool;
    std::uninitialized_fill(p, p+N, Counted());
    assert(Counted::count == 5);
    Counted* np = std::destroy_n(p, 1);
    assert(np == p+1);
    assert(Counted::count == 4);
    p += 1;
    It it = std::destroy_n(It(p), 4);
    assert(it == It(p+4));
    assert(Counted::count == 0);

  return 0;
}