使用 function 指针时交换数组中的元素不起作用

Question

So i want to use AscendingSort() and DecendingSort() as an argument but it seems like after return the value the swap part just get skipped, hope someone explain to me, thanks..

        bool AscendingSort(int a, int b)
        {
            return a > b;
        }
        bool DecendingSort(int a, int b)
        {
            return a < b;
        }
    
        void SortArray(int* a, int size, bool(*func)(int, int))
        {
            int saveElement;
            for (int x = 0; x < size; x++)
            {
                for (int y = x + 1; y < size; y++)
                {
                    if (func(a[x], a[y]))
                    {
                        saveElement = a[x];
                        a[x] == a[y];           //Those 2 lines getting skipped.
                        a[y] == saveElement;
                    }
                }
            }
        }
    
    void main()
    {
        int a[1000];
    
        int arrSize;
    
        SortArray(a, arrSize, AscendingSort);
    
    };

Answer 1

You probably meant to use = operator instead of == .