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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: mpint.c,v 1.4 2004/04/08 01:36:15 mdw Exp $ |
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4 | * |
5 | * Conversion between MPs and standard C integers |
6 | * |
7 | * (c) 1999 Straylight/Edgeware |
8 | */ |
9 | |
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10 | /*----- Licensing notice --------------------------------------------------* |
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11 | * |
12 | * This file is part of Catacomb. |
13 | * |
14 | * Catacomb is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
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18 | * |
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19 | * Catacomb is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with Catacomb; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
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30 | /*----- Header files ------------------------------------------------------*/ |
31 | |
32 | #include "mpint.h" |
33 | |
34 | /*----- Main code ---------------------------------------------------------*/ |
35 | |
36 | /* --- Conversion from C integers --- */ |
37 | |
38 | #define FROM(name, type) \ |
39 | mp *mp_from##name(mp *d, type i) { \ |
40 | MP_FROMINT(d, type, i); \ |
41 | return (d); \ |
42 | } |
43 | |
44 | FROM(short, short) |
45 | FROM(ushort, unsigned short) |
46 | FROM(int, int) |
47 | FROM(uint, unsigned) |
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48 | FROM(uint32, uint32) |
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49 | FROM(long, long) |
50 | FROM(ulong, unsigned long) |
51 | |
52 | #undef FROM |
53 | |
54 | /* --- Conversion to C integers --- */ |
55 | |
56 | #define TO(name, type, max) \ |
57 | type mp_to##name(const mp *m) \ |
58 | { \ |
59 | type i; \ |
60 | MP_TOINT(m, type, max, i); \ |
61 | return (i); \ |
62 | } |
63 | |
64 | TO(short, short, SHRT_MAX) |
65 | TO(ushort, unsigned short, USHRT_MAX) |
66 | TO(int, int, INT_MAX) |
67 | TO(uint, unsigned, UINT_MAX) |
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68 | TO(uint32, uint32, 0xffffffff) |
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69 | TO(long, long, LONG_MAX) |
70 | TO(ulong, unsigned long, ULONG_MAX) |
71 | |
72 | #undef TO |
73 | |
74 | /*----- Test rig ----------------------------------------------------------*/ |
75 | |
76 | #ifdef TEST_RIG |
77 | |
78 | #include <mLib/testrig.h> |
79 | |
80 | static int fromuint(dstr *v) |
81 | { |
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82 | unsigned long i = *(unsigned long *)v[0].buf; |
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83 | mp *m = *(mp **)v[1].buf; |
84 | mp *d = mp_fromuint(MP_NEW, i); |
85 | int ok = 1; |
86 | |
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87 | if (!MP_EQ(d, m)) { |
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88 | fputs("\n*** fromint failed.\n", stderr); |
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89 | fprintf(stderr, "i = %lu", i); |
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90 | fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10); |
91 | fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10); |
92 | fputc('\n', stderr); |
93 | ok = 0; |
94 | } |
95 | |
96 | mp_drop(m); |
97 | mp_drop(d); |
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98 | assert(mparena_count(MPARENA_GLOBAL) == 0); |
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99 | return (ok); |
100 | } |
101 | |
102 | static int fromint(dstr *v) |
103 | { |
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104 | long i = *(long *)v[0].buf; |
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105 | mp *m = *(mp **)v[1].buf; |
106 | mp *d = mp_fromint(MP_NEW, i); |
107 | int ok = 1; |
108 | |
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109 | if (!MP_EQ(d, m)) { |
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110 | fputs("\n*** fromint failed.\n", stderr); |
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111 | fprintf(stderr, "i = %li", i); |
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112 | fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10); |
113 | fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10); |
114 | fputc('\n', stderr); |
115 | ok = 0; |
116 | } |
117 | |
118 | mp_drop(m); |
119 | mp_drop(d); |
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120 | assert(mparena_count(MPARENA_GLOBAL) == 0); |
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121 | return (ok); |
122 | } |
123 | |
124 | static int touint(dstr *v) |
125 | { |
126 | mp *m = *(mp **)v[0].buf; |
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127 | unsigned long i = *(unsigned long *)v[1].buf; |
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128 | unsigned j = mp_touint(m); |
129 | int ok = 1; |
130 | |
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131 | if ((unsigned)i != j) { |
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132 | fputs("\n*** touint failed.\n", stderr); |
133 | fputs("m = ", stderr); mp_writefile(m, stderr, 10); |
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134 | fprintf(stderr, "\nexpect = %lu; result = %u\n", i, j); |
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135 | ok = 0; |
136 | } |
137 | |
138 | mp_drop(m); |
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139 | assert(mparena_count(MPARENA_GLOBAL) == 0); |
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140 | return (ok); |
141 | } |
142 | |
143 | static int toint(dstr *v) |
144 | { |
145 | mp *m = *(mp **)v[0].buf; |
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146 | long i = *(long *)v[1].buf; |
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147 | int j = mp_toint(m); |
148 | int ok = 1; |
149 | |
150 | if (i != j) { |
151 | fputs("\n*** toint failed.\n", stderr); |
152 | fputs("m = ", stderr); mp_writefile(m, stderr, 10); |
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153 | fprintf(stderr, "\nexpect = %li; result = %i\n", i, j); |
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154 | ok = 0; |
155 | } |
156 | |
157 | mp_drop(m); |
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158 | assert(mparena_count(MPARENA_GLOBAL) == 0); |
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159 | return (ok); |
160 | } |
161 | |
162 | static test_chunk tests[] = { |
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163 | { "fromuint", fromuint, { &type_ulong, &type_mp, 0 } }, |
164 | { "fromint", fromint, { &type_long, &type_mp, 0 } }, |
165 | { "touint", touint, { &type_mp, &type_ulong, 0 } }, |
166 | { "toint", toint, { &type_mp, &type_long, 0 } }, |
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167 | { 0, 0, { 0 } } |
168 | }; |
169 | |
170 | int main(int argc, char *argv[]) |
171 | { |
172 | sub_init(); |
173 | test_run(argc, argv, tests, SRCDIR "/tests/mpint"); |
174 | return (0); |
175 | } |
176 | |
177 | #endif |
178 | |
179 | /*----- That's all, folks -------------------------------------------------*/ |