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