vector_dyn_mem.cpp

#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <vector>

void *operator new(std::size_t count)
{
    printf("%s, size = %ld\r\n", __PRETTY_FUNCTION__, count);
    return std::malloc(count);
}

void operator delete(void *ptr) noexcept
{
    printf("%s\r\n", __PRETTY_FUNCTION__);
    std::free(ptr);
}

int main()
{
    std::vector<std::uint8_t> vec;
    constexpr std::size_t n_elem = 8;
    for(std::uint8_t i = 0; i < n_elem; i++)
    {
        vec.push_back(i);
    }
    const auto print_array = [](uint8_t *arr, std::size_t n)
    {
        for(std::size_t i = 0; i < n; i++)
        {
            printf("%d ", arr[i]);
        }
        printf("\r\n");
    };
    print_array(vec.data(), n_elem);
    return 0;
}