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prng.c
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1 /*
2 This file is part of BitPunch
3 Copyright (C) 2013-2015 Frantisek Uhrecky <frantisek.uhrecky[what here]gmail.com>
4 Copyright (C) 2013-2014 Andrej Gulyas <andrej.guly[what here]gmail.com>
5 Copyright (C) 2013-2014 Marek Klein <kleinmrk[what here]gmail.com>
6 Copyright (C) 2013-2014 Filip Machovec <filipmachovec[what here]yahoo.com>
7 Copyright (C) 2013-2014 Jozef Kudlac <jozef[what here]kudlac.sk>
8 
9 This program is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
13 
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18 
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22 #include "prng.h"
23 
24 #include <stdlib.h>
25 #include <stdio.h>
26 #include <stdint.h>
27 
28 uint32_t BPU_prngGetRand(int from, int to) {
29 // uint32_t tmp;
30 // FILE *fp;
31 
32 // if (from <= to){
33 // fp = fopen("/dev/urandom", "rb");
34 
35 // if (!fp) {
36 // fprintf(stderr, "dsadsa\n");
37 // tmp = rand();
38 // }
39 // else {
40 // fread(&tmp, sizeof(uint32_t), 1, fp);
41 // fclose(fp);
42 // }
43 // return (uint32_t) (tmp % (to - from) + from);
44 // }
45 // return 0;
46  if (from <= to){
47  return rand() % (to - from) + from;
48  }
49  return 0;
50 }
uint32_t BPU_prngGetRand(int from, int to)
Get random unsigned int 32 value from given range (from <= return <= to)
Definition: prng.c:28