循环展开技术

for(i = 0; i < 10; i++){
        temp = temp * (array[i]);
}
void Negative(BYTE * pixel, BYTE * tempPixel, int width, int height)
{
        int i = 0;
        int sum = width * height * 4;
        memcpy(pixel, tempPixel, sum);

        for(i = 0; i < sum; i++)
        {
            tempPixel[i] = 255 - tempPixel[i];
        }
}
void Negative(BYTE * pixel, BYTE * tempPixel, int width, int height)
{
        int i = 0;
        int sum = width * height * 4;
        memcpy(pixel, tempPixel, sum);

        for(i = 0; i < sum; i+=3)
        {
            tempPixel[i] = 255 - tempPixel[i];
            tempPixel[i+1] = 255 - tempPixel[i+1];
            tempPixel[i+2] = 255 - tempPixel[i+2];
        }
}
#include

void function(int array[], int *dest)
{
        int i;

        int temp = 1;
        int limit = 10 -2;

        for(i = 0; i < limit; i+=3){
            temp = temp * (array[i])* (array[i+1])* (array[i+2]);
        }

        for(; i < 10; i++){
            temp = temp * array[i];
        }
        *dest = temp;
}

void main()
{
        int array[10] = {1, 1, 1, 2, 2, 3, 3, 3, 4, 1};

        int number = 1;
        int * dest = &number;

        function(array, dest);

        printf("%d\n", *dest);
}