1 #ifndef LIB_MATH_H

     2 #define LIB_MATH_H

     3 

     4 #define MIN(a, b) ((a) < (b) ? (a) : (b))

     5 #define MAX(a, b) ((a) > (b) ? (a) : (b))

     6 

     7 #endif /* LIB_MATH_H */