1 
2 #define MAX(A,B) ((A)>(B) ? (A):(B))
3 #define MIN(A,B) ((A)<(B) ? (A):(B))
4 
5 #define ABS(X)  ((X) < 0 ? -(X) : (X))
6 
7 static const int LOGICAL_TRUE  =  1;
8 static const int LOGICAL_FALSE =  0;
9 static const int LOGICAL_ERROR = -1;
10 
11 float C_EPS;
12 
13