5 * (c) 2024 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the mLib utilities library.
12 * mLib is free software: you can redistribute it and/or modify it under
13 * the terms of the GNU Library General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or (at
15 * your option) any later version.
17 * mLib is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
20 * License for more details.
22 * You should have received a copy of the GNU Library General Public
23 * License along with mLib. If not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
28 #ifndef MLIB_EXAMPLE_H
29 #define MLIB_EXAMPLE_H
35 /*----- Header files ------------------------------------------------------*/
40 /*----- Functions provided ------------------------------------------------*/
42 extern int add(int /*x*/, int /*y*/);
43 /* Return the sum X + Y. */
45 extern int greet(char */*buf*/, size_t /*sz*/, const char */*name*/);
46 /* Generate a personalized greeting, mentioning NAME. The greeting is
47 * written to the output buffer BUF, which has space for SZ characters.
48 * Return zero on success, or -1 on error.
51 extern unsigned long recfib(unsigned /*n*/);
52 /* Stupid but traditional recursive Fibonacci. */
54 extern unsigned long iterfib(unsigned /*n*/);
55 /* Slightly less stupid but still traditional iterative Fibonacci. */
57 extern unsigned long expfib(unsigned /*n*/);
58 /* Sadly nontraditional intelligent Fibonacci. */
60 #define RECFIBLIMIT 40 /* too slow beyond this */
61 #if (ULONG_MAX/65536 >> 16) >= 0xffffffff
62 # define FIBLIMIT 94 /* F_94 = 19740274219868223167 > 2^64 */
64 # define FIBLIMIT 48 /* F_48 = 4807526976 > 2^32 */
67 /*----- That's all, folks -------------------------------------------------*/