1 /* 2 This file is part of cave9. 3 4 cave9 is free software: you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation, either version 3 of the License, or 7 (at your option) any later version. 8 9 cave9 is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with cave9. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef detrand_h_included 19 #define detrand_h_included 20 21 #include <stdlib.h> 22 23 extern int randval; 24 extern int randseed; 25 26 float detrand(); 27 void detsrand (int seed); 28 29 #define DRAND (detrand() / 2.0 + 0.5) 30 #define DRAND_BIG (int)(DRAND * RAND_MAX) 31 32 #endif 33