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TDA4VM: error: class "c7x::element_count_of<const float16>" has no member "value"

FredC_LT
Intellectual 776 points
Part Number: TDA4VM

Hi,

I created a template helper to print the contents of a vector:

template<typename T>
static inline void PrintVector(std::string name, T& vec)
{
    std::cout << "****************************" << std::endl;
    std::cout << name << ": { ";
    int count = c7x::element_count_of<T>::value;
    for (int i = 0; i < count; i++)
    {
        std::cout << vec.s[i];
        if (i < (count -1)) // Don't print comma for last element
        {
            std::cout << ", ";
        }
    }
    std::cout << " }" << std::endl;
}

It works fine until I use a const vector. Seems that those aren't instantiated in c7x_scalable.h. Is this something that could be fixed in the API?

Thanks,

Fred

  • +1
    TI__Guru**** 242155 points

    Thank you for notifying us of this problem, and supplying a concise test case.  I can reproduce the same behavior.  I filed the entry EXT_EP-11205 to have this investigated.  You are welcome to follow it with that link.

    Please consider the following workaround ...

    #include <type_traits>

template<typename T>
static inline void PrintVector(std::string name, T& vec)
{
    using NCT = std::remove_const_t<T>;
    std::cout << "****************************" << std::endl;
    std::cout << name << ": { ";
    int count = c7x::element_count_of<NCT>::value;
    for (int i = 0; i < count; i++)
    {
        std::cout << vec.s[i];
        if (i < (count -1)) // Don't print comma for last element
        {
            std::cout << ", ";
        }
    }
    std::cout << " }" << std::endl;
}

    Note the new type NCT.  It is T without the const qualifier, if present.  remove_const_t comes from the standard header file <type_traits>.

    Thanks and regards,

    -George

  • 0 in reply to George Mock
    Intellectual 776 points

    Thanks, George