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#ifndef __LIB_MATH_H__

#define __LIB_MATH_H__

/* Take the power */

static inline int pow(int val, int exp)

{

        int res = 1;

        for (int i = 0; i < exp; i++)

                res *= val;

        return res;

}

static inline int min(int x, int y)

{

        return x < y ? x : y;

}

static inline int max(int x, int y)

{

        return x > y ? x : y;

}

/* Tests if ranges a-b intersect with range c-d */

static inline int set_intersection(unsigned long a, unsigned long b,

                                   unsigned long c, unsigned long d)

{

        /*

         * Below is the complement set (') of the intersection

         * of 2 ranges, much simpler ;-)

         */

        if (b <= c || a >= d)

                return 0;

        /* The rest is always intersecting */

        return 1;

}

#endif /* __LIB_MATH_H__ */