~mdw / mLib / blame
| Commit | Line | Data |
|---|---|---|
| c4ccbbf9 MW |
1 | /* -*-c-*- |
| 2 | * | |
| 3 | * Example test program | |
| 4 | * | |
| 5 | * (c) 2024 Straylight/Edgeware | |
| 6 | */ | |
| 7 | ||
| 8 | /*----- Licensing notice --------------------------------------------------* | |
| 9 | * | |
| 10 | * This file is part of the mLib utilities library. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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. | |
| 21 | * | |
| 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, | |
| 25 | * USA. | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef MLIB_EXAMPLE_H | |
| 29 | #define MLIB_EXAMPLE_H | |
| 30 | ||
| 31 | #ifdef __cplusplus | |
| 32 | extern "C" { | |
| 33 | #endif | |
| 34 | ||
| 35 | /*----- Header files ------------------------------------------------------*/ | |
| 36 | ||
| 289651a7 | 37 | #include <limits.h> |
| c4ccbbf9 MW |
38 | #include <stddef.h> |
| 39 | ||
| 40 | /*----- Functions provided ------------------------------------------------*/ | |
| 41 | ||
| 42 | extern int add(int /*x*/, int /*y*/); | |
| 43 | /* Return the sum X + Y. */ | |
| 44 | ||
| 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. | |
| 49 | */ | |
| 50 | ||
| 289651a7 MW |
51 | extern unsigned long recfib(unsigned /*n*/); |
| 52 | /* Stupid but traditional recursive Fibonacci. */ | |
| 53 | ||
| 54 | extern unsigned long iterfib(unsigned /*n*/); | |
| 55 | /* Slightly less stupid but still traditional iterative Fibonacci. */ | |
| 56 | ||
| 57 | extern unsigned long expfib(unsigned /*n*/); | |
| 58 | /* Sadly nontraditional intelligent Fibonacci. */ | |
| 59 | ||
| 60 | #define RECFIBLIMIT 40 /* too slow beyond this */ | |
| 61 | #if (ULONG_MAX/65536 >> 16) >= 0xffffffff | |
| 62 | # define FIBLIMIT 94 /* F_94 = 19740274219868223167 > 2^64 */ | |
| 63 | #else | |
| 64 | # define FIBLIMIT 48 /* F_48 = 4807526976 > 2^32 */ | |
| 65 | #endif | |
| 66 | ||
| c4ccbbf9 MW |
67 | /*----- That's all, folks -------------------------------------------------*/ |
| 68 | ||
| 69 | #ifdef __cplusplus | |
| 70 | } | |
| 71 | #endif | |
| 72 | ||
| 73 | #endif |