ascending array sort in c code example

Example 1: how to sort an array in c'=

for (i = 0; i < n; ++i) 
        {
 
            for (j = i + 1; j < n; ++j)
            {
 
                if (number[i] > number[j]) 
                {
 
                    a =  number[i];
                    number[i] = number[j];
                    number[j] = a;
 
                }
 
            }

Example 2: using sort function in c

void qsort(void *base, size_t nitems, size_t size, int (*compar)(const void *, const void*))