2 * Copyright 2012 Clifton Royston
3 * Copyright 2013 John-Mark Gurney
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/types.h>
43 #define MAX_STR_FLAGS_RESULT 80
44 #define MAX_INT_STR_DIGITS 12
46 static const int64_t halfExabyte = (int64_t)500*1000*1000*1000*1000*1000L;
55 /* tests 0-13 test 1000 suffixes */
56 { 2, "0 ", (int64_t)0L, HN_DIVISOR_1000, HN_AUTOSCALE },
57 { 3, "1 k", (int64_t)500L, HN_DIVISOR_1000, HN_AUTOSCALE },
58 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
59 { 3, "1 G", (int64_t)500*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
60 { 3, "1 T", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
61 { 3, "1 P", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
62 { 3, "1 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
63 { 2, "1 ", (int64_t)1L, HN_DIVISOR_1000, HN_AUTOSCALE },
64 { 3, "2 k", (int64_t)1500L, HN_DIVISOR_1000, HN_AUTOSCALE },
65 { 3, "2 M", (int64_t)1500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
66 { 3, "2 G", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
67 { 3, "2 T", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
68 { 3, "2 P", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
69 { 3, "2 E", (int64_t)1500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
71 /* tests 14-27 test 1024 suffixes */
72 { 2, "0 ", (int64_t)0L, 0, HN_AUTOSCALE },
73 { 3, "1 K", (int64_t)512L, 0, HN_AUTOSCALE },
74 { 3, "1 M", (int64_t)512*1024L, 0, HN_AUTOSCALE },
75 { 3, "1 G", (int64_t)512*1024*1024L, 0, HN_AUTOSCALE },
76 { 3, "1 T", (int64_t)512*1024*1024*1024L, 0, HN_AUTOSCALE },
77 { 3, "1 P", (int64_t)512*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
78 { 3, "1 E", (int64_t)512*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
79 { 2, "1 ", (int64_t)1L, 0, HN_AUTOSCALE },
80 { 3, "2 K", (int64_t)1536L, 0, HN_AUTOSCALE },
81 { 3, "2 M", (int64_t)1536*1024L, 0, HN_AUTOSCALE },
82 { 3, "2 G", (int64_t)1536*1024*1024L, 0, HN_AUTOSCALE },
83 { 3, "2 T", (int64_t)1536*1024*1024*1024L, 0, HN_AUTOSCALE },
84 { 3, "2 P", (int64_t)1536*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
85 { 3, "2 E", (int64_t)1536*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
87 /* tests 28-37 test rounding */
88 { 3, "0 M", (int64_t)500*1000L-1, HN_DIVISOR_1000, HN_AUTOSCALE },
89 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
90 { 3, "1 M", (int64_t)1000*1000L + 500*1000L-1, HN_DIVISOR_1000, HN_AUTOSCALE },
91 { 3, "2 M", (int64_t)1000*1000L + 500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
92 { 3, "0 K", (int64_t)512L-1, 0, HN_AUTOSCALE },
93 { 3, "1 K", (int64_t)512L, 0, HN_AUTOSCALE },
94 { 3, "0 M", (int64_t)512*1024L-1, 0, HN_AUTOSCALE },
95 { 3, "1 M", (int64_t)512*1024L, 0, HN_AUTOSCALE },
96 { 3, "1 M", (int64_t)1024*1024L + 512*1024L-1, 0, HN_AUTOSCALE },
97 { 3, "2 M", (int64_t)1024*1024L + 512*1024L, 0, HN_AUTOSCALE },
99 /* tests 38-61 test specific scale factors with 1000 divisor */
100 { 3, "0 k", (int64_t)0L, HN_DIVISOR_1000, 1 },
101 { 3, "1 k", (int64_t)500L, HN_DIVISOR_1000, 1 },
102 { 3, "0 M", (int64_t)500L, HN_DIVISOR_1000, 2 },
103 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, 2 },
104 { 3, "0 G", (int64_t)500*1000L, HN_DIVISOR_1000, 3 },
105 { 3, "1 G", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 3 },
106 { 3, "0 T", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 4 },
107 { 3, "1 T", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, 4 },
108 { 3, "0 P", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, 5 },
109 { 3, "1 P", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
110 { 3, "0 E", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
111 { 3, "1 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
112 { 3, "0 k", (int64_t)1L, HN_DIVISOR_1000, 1 },
113 { 3, "2 k", (int64_t)1500L, HN_DIVISOR_1000, 1 },
114 { 3, "0 M", (int64_t)1500L, HN_DIVISOR_1000, 2 },
115 { 3, "2 M", (int64_t)1500*1000L, HN_DIVISOR_1000, 2 },
116 { 3, "0 G", (int64_t)1500*1000L, HN_DIVISOR_1000, 3 },
117 { 3, "2 G", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 3 },
118 { 3, "0 T", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 4 },
119 { 3, "2 T", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, 4 },
120 { 3, "0 P", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, 5 },
121 { 3, "2 P", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
122 { 3, "0 E", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
123 { 3, "2 E", (int64_t)1500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
125 /* tests 62-85 test specific scale factors with 1024 divisor */
126 { 3, "0 K", (int64_t)0L, 0, 1 },
127 { 3, "1 K", (int64_t)512L, 0, 1 },
128 { 3, "0 M", (int64_t)512L, 0, 2 },
129 { 3, "1 M", (int64_t)512*1024L, 0, 2 },
130 { 3, "0 G", (int64_t)512*1024L, 0, 3 },
131 { 3, "1 G", (int64_t)512*1024*1024L, 0, 3 },
132 { 3, "0 T", (int64_t)512*1024*1024L, 0, 4 },
133 { 3, "1 T", (int64_t)512*1024*1024*1024L, 0, 4 },
134 { 3, "0 P", (int64_t)512*1024*1024*1024L, 0, 5 },
135 { 3, "1 P", (int64_t)512*1024*1024*1024*1024L, 0, 5 },
136 { 3, "0 E", (int64_t)512*1024*1024*1024*1024L, 0, 6 },
137 { 3, "1 E", (int64_t)512*1024*1024*1024*1024*1024L, 0, 6 },
138 { 3, "0 K", (int64_t)1L, 0, 1 },
139 { 3, "2 K", (int64_t)1536L, 0, 1 },
140 { 3, "0 M", (int64_t)1536L, 0, 2 },
141 { 3, "2 M", (int64_t)1536*1024L, 0, 2 },
142 { 3, "0 G", (int64_t)1536*1024L, 0, 3 },
143 { 3, "2 G", (int64_t)1536*1024*1024L, 0, 3 },
144 { 3, "0 T", (int64_t)1536*1024*1024L, 0, 4 },
145 { 3, "2 T", (int64_t)1536*1024*1024*1024L, 0, 4 },
146 { 3, "0 P", (int64_t)1536*1024*1024*1024L, 0, 5 },
147 { 3, "2 P", (int64_t)1536*1024*1024*1024*1024L, 0, 5 },
148 { 3, "0 E", (int64_t)1536*1024*1024*1024*1024L, 0, 6 },
149 { 3, "2 E", (int64_t)1536*1024*1024*1024*1024*1024L, 0, 6 },
151 /* tests 86-99 test invalid specific scale values of < 0 or >= 7 with
152 and without HN_DIVISOR_1000 set */
153 /* all should return errors with new code; with old, the latter 3
154 are instead processed as if having AUTOSCALE and/or GETSCALE set */
155 { -1, "", (int64_t)1L, 0, 7 },
156 { -1, "", (int64_t)1L, HN_DIVISOR_1000, 7 },
157 { -1, "", (int64_t)1L, 0, 1000 },
158 { -1, "", (int64_t)1L, HN_DIVISOR_1000, 1000 },
159 { -1, "", (int64_t)0L, 0, 1000*1000 },
160 { -1, "", (int64_t)0L, HN_DIVISOR_1000, 1000*1000 },
161 { -1, "", (int64_t)0L, 0, INT_MAX },
162 { -1, "", (int64_t)0L, HN_DIVISOR_1000, INT_MAX },
164 /* Negative scale values are not handled well
165 by the existing library routine - should report as error */
166 /* all should return errors with new code, fail assertion with old */
168 { -1, "", (int64_t)1L, 0, -1 },
169 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -1 },
170 { -1, "", (int64_t)1L, 0, -1000 },
171 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -1000 },
173 /* __INT_MIN doesn't print properly, skipped. */
175 { -1, "", (int64_t)1L, 0, -__INT_MAX },
176 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -__INT_MAX },
179 /* tests for scale == 0, without autoscale */
180 /* tests 100-114 test scale 0 with 1000 divisor - print first N digits */
181 { 2, "0 ", (int64_t)0L, HN_DIVISOR_1000, 0 },
182 { 2, "1 ", (int64_t)1L, HN_DIVISOR_1000, 0 },
183 { 3, "10 ", (int64_t)10L, HN_DIVISOR_1000, 0 },
184 { 3, "0 M", (int64_t)150L, HN_DIVISOR_1000, HN_NOSPACE },
185 { 3, "0 M", (int64_t)500L, HN_DIVISOR_1000, HN_NOSPACE },
186 { 3, "0 M", (int64_t)999L, HN_DIVISOR_1000, HN_NOSPACE },
187 { 4, "150", (int64_t)150L, HN_DIVISOR_1000, 0 },
188 { 4, "500", (int64_t)500L, HN_DIVISOR_1000, 0 },
189 { 4, "999", (int64_t)999L, HN_DIVISOR_1000, 0 },
190 { 5, "100", (int64_t)1000L, HN_DIVISOR_1000, 0 },
191 { 5, "150", (int64_t)1500L, HN_DIVISOR_1000, 0 },
192 { 7, "500", (int64_t)500*1000L, HN_DIVISOR_1000, 0 },
193 { 8, "150", (int64_t)1500*1000L, HN_DIVISOR_1000, 0 },
194 { 10, "500", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 0 },
195 { 11, "150", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 0 },
197 /* tests 115-126 test scale 0 with 1024 divisor - print first N digits */
198 { 2, "0 ", (int64_t)0L, 0, 0 },
199 { 2, "1 ", (int64_t)1L, 0, 0 },
200 { 3, "10 ", (int64_t)10L, 0, 0 },
201 { 4, "150", (int64_t)150L, 0, 0 },
202 { 4, "500", (int64_t)500L, 0, 0 },
203 { 4, "999", (int64_t)999L, 0, 0 },
204 { 5, "100", (int64_t)1000L, 0, 0 },
205 { 5, "150", (int64_t)1500L, 0, 0 },
206 { 7, "500", (int64_t)500*1000L, 0, 0 },
207 { 8, "150", (int64_t)1500*1000L, 0, 0 },
208 { 10, "500", (int64_t)500*1000*1000L, 0, 0 },
209 { 11, "150", (int64_t)1500*1000*1000L, 0, 0 },
211 /* Test boundary cases for very large positive/negative number formatting */
212 /* Explicit scale, divisor 1024 */
214 /* XXX = requires length 5 (buflen 6) for some cases*/
215 /* KLUDGE - test loop below will bump length 5 up to 5 */
216 { 3, "8 E", INT64_MAX, 0, 6 },
217 { 4, "-8 E", -INT64_MAX, 0, 6 },
218 { 3, "0 E", (int64_t)92*1024*1024*1024*1024*1024L, 0, 6 },
219 { 3, "0 E", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 6 },
220 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, 0, 6 },
221 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 6 },
222 { 3, "0 E", (int64_t)81*1024*1024*1024*1024*1024L, 0, 6 },
223 { 3, "0 E", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 6 },
224 { 4, "92 P", (int64_t)92*1024*1024*1024*1024*1024L, 0, 5 },
225 { 5, "-92 P", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 5 },
226 { 4, "82 P", (int64_t)82*1024*1024*1024*1024*1024L, 0, 5 },
227 { 5, "-82 P", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 5 },
228 { 4, "81 P", (int64_t)81*1024*1024*1024*1024*1024L, 0, 5 },
229 { 5, "-81 P", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 5 },
231 /* Explicit scale, divisor 1000 */
232 { 3, "9 E", INT64_MAX, HN_DIVISOR_1000, 6 },
233 { 4, "-9 E", -INT64_MAX, HN_DIVISOR_1000, 6 },
234 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
235 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
236 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
237 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
238 { 4, "92 P", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
239 { 5, "-92 P", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
240 { 4, "91 P", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
241 { 5, "-91 P", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
243 /* Autoscale, divisor 1024 */
244 { 3, "8 E", INT64_MAX, 0, HN_AUTOSCALE },
245 { 4, "-8 E", -INT64_MAX, 0, HN_AUTOSCALE },
246 { 4, "92 P", (int64_t)92*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
247 { 5, "-92 P", -(int64_t)92*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
248 { 4, "82 P", (int64_t)82*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
249 { 5, "-82 P", -(int64_t)82*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
250 { 4, "81 P", (int64_t)81*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
251 { 5, "-81 P", -(int64_t)81*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
252 /* Autoscale, divisor 1000 */
253 { 3, "9 E", INT64_MAX, HN_DIVISOR_1000, HN_AUTOSCALE },
254 { 4, "-9 E", -INT64_MAX, HN_DIVISOR_1000, HN_AUTOSCALE },
255 { 4, "92 P", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
256 { 5, "-92 P", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
257 { 4, "91 P", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
258 { 5, "-91 P", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
260 /* 0 scale, divisor 1024 */
261 { 12, "skdj", INT64_MAX, 0, 0 },
262 { 21, "-9223", -INT64_MAX, 0, 0 },
263 { 19, "10358", (int64_t)92*1024*1024*1024*1024*1024L, 0, 0 },
264 { 20, "-1035", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 0 },
265 { 18, "92323", (int64_t)82*1024*1024*1024*1024*1024L, 0, 0 },
266 { 19, "-9232", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 0 },
267 { 18, "91197", (int64_t)81*1024*1024*1024*1024*1024L, 0, 0 },
268 { 19, "-9119", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 0 },
270 /* 0 scale, divisor 1000 */
271 /* XXX - why does this fail? */
272 { -1, "", INT64_MAX, HN_DIVISOR_1000, 0 },
273 { 21, "-9223", -INT64_MAX, HN_DIVISOR_1000, 0 },
274 { 19, "10358", (int64_t)92*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
275 { 20, "-1035", -(int64_t)92*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
276 { 18, "92323", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
277 { 19, "-9232", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
278 /* Expected to pass */
279 { 18, "91197", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
280 { 19, "-9119", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
284 /* Need to implement tests for GETSCALE */
285 /* { ?, "", (int64_t)0L, HN_DIVISOR_1000, HN_GETSCALE },
288 /* Tests for HN_DECIMAL */
289 /* Positive, Autoscale */
290 { 5, "500 k", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
291 { 5, "994 k", (int64_t)994*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
292 { 5, "995 k", (int64_t)995*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
293 { 5, "999 k", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
294 { 5, "1.0 M", (int64_t)1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
295 { 5, "1.5 M", (int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
296 { 5, "1.9 M", (int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
297 { 5, "2.0 M", (int64_t)1950*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
298 { 5, "9.9 M", (int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
299 { 4, "10 M", (int64_t)9950*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
300 { 5, "500 M", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
301 { 5, "994 M", (int64_t)994*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
302 { 5, "995 M", (int64_t)995*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
303 { 5, "999 M", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
305 { 5, "500 K", (int64_t)500*1024L, HN_DECIMAL, HN_AUTOSCALE },
306 { 5, "994 K", (int64_t)994*1024L, HN_DECIMAL, HN_AUTOSCALE },
307 { 5, "995 K", (int64_t)995*1024L, HN_DECIMAL, HN_AUTOSCALE },
308 { 5, "999 K", (int64_t)999*1024L, HN_DECIMAL, HN_AUTOSCALE },
309 { 5, "1.0 M", (int64_t)1000*1024L, HN_DECIMAL, HN_AUTOSCALE },
310 { 5, "1.0 M", (int64_t)1018*1024L, HN_DECIMAL, HN_AUTOSCALE },
311 { 5, "1.0 M", (int64_t)1019*1024L, HN_DECIMAL, HN_AUTOSCALE },
312 { 5, "1.5 M", (int64_t)1536*1024L, HN_DECIMAL, HN_AUTOSCALE },
313 { 5, "1.9 M", (int64_t)1996*1024L, HN_DECIMAL, HN_AUTOSCALE },
314 { 5, "2.0 M", (int64_t)1997*1024L, HN_DECIMAL, HN_AUTOSCALE },
315 { 5, "2.0 M", (int64_t)2047*1024L, HN_DECIMAL, HN_AUTOSCALE },
316 { 5, "2.0 M", (int64_t)2048*1024L, HN_DECIMAL, HN_AUTOSCALE },
317 { 5, "2.0 M", (int64_t)2099*1024L, HN_DECIMAL, HN_AUTOSCALE },
318 { 5, "2.1 M", (int64_t)2100*1024L, HN_DECIMAL, HN_AUTOSCALE },
319 { 5, "9.9 M", (int64_t)10188*1024L, HN_DECIMAL, HN_AUTOSCALE },
320 /* XXX - shouldn't the following two be "10. M"? */
321 { 4, "10 M", (int64_t)10189*1024L, HN_DECIMAL, HN_AUTOSCALE },
322 { 4, "10 M", (int64_t)10240*1024L, HN_DECIMAL, HN_AUTOSCALE },
323 { 5, "500 M", (int64_t)500*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
324 { 5, "994 M", (int64_t)994*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
325 { 5, "995 M", (int64_t)995*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
326 { 5, "999 M", (int64_t)999*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
327 { 5, "1.0 G", (int64_t)1000*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
328 { 5, "1.0 G", (int64_t)1023*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
330 /* Negative, Autoscale - should pass */
331 { 6, "-1.5 ", -(int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
332 { 6, "-1.9 ", -(int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
333 { 6, "-9.9 ", -(int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
335 { 6, "-1.5 ", -(int64_t)1536*1024L, HN_DECIMAL, HN_AUTOSCALE },
336 { 6, "-1.9 ", -(int64_t)1949*1024L, HN_DECIMAL, HN_AUTOSCALE },
337 { 6, "-9.7 ", -(int64_t)9949*1024L, HN_DECIMAL, HN_AUTOSCALE },
339 /* Positive/negative, at maximum scale */
340 { 5, "500 P", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
341 { 5, "1.9 E", (int64_t)1949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
342 { 5, "8.9 E", (int64_t)8949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
343 { 5, "9.2 E", INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
344 /* Negatives work with latest rev only: */
345 { 6, "-9.2 ", -INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
346 { 6, "-8.9 ", -(int64_t)8949*1000*1000*1000*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
348 { 5, "8.0 E", INT64_MAX, HN_DECIMAL, HN_AUTOSCALE },
349 { 5, "7.9 E", INT64_MAX-(int64_t)100*1024*1024*1024*1024*1024LL, HN_DECIMAL, HN_AUTOSCALE },
350 { 6, "-8.0 ", -INT64_MAX, HN_DECIMAL, HN_AUTOSCALE },
351 { 6, "-7.9 ", -INT64_MAX+(int64_t)100*1024*1024*1024*1024*1024LL, HN_DECIMAL, HN_AUTOSCALE },
353 /* Positive, Fixed scales */
354 { 5, "500 k", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
355 { 5, "0.5 M", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
356 { 5, "949 k", (int64_t)949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
357 { 5, "0.9 M", (int64_t)949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
358 { 5, "950 k", (int64_t)950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
359 { 5, "1.0 M", (int64_t)950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
360 { 5, "999 k", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
361 { 5, "1.0 M", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
362 { 5, "1.5 M", (int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
363 { 5, "1.9 M", (int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
364 { 5, "2.0 M", (int64_t)1950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
365 { 5, "9.9 M", (int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
366 { 4, "10 M", (int64_t)9950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
367 { 5, "500 M", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
368 { 5, "0.5 G", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 3 },
369 { 5, "999 M", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
370 { 5, "1.0 G", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 3 },
371 /* Positive/negative, at maximum scale */
372 { 5, "500 P", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
373 { 5, "1.0 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
374 { 5, "1.9 E", (int64_t)1949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
375 { 5, "8.9 E", (int64_t)8949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
376 { 5, "9.2 E", INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, 6 },
378 /* HN_DECIMAL + binary + fixed scale cases not completed */
379 { 5, "512 K", (int64_t)512*1024L, HN_DECIMAL, 1 },
380 { 5, "0.5 M", (int64_t)512*1024L, HN_DECIMAL, 2 },
382 /* Negative, Fixed scales */
383 /* Not yet added, but should work with latest rev */
388 /* Command line options usage */
390 usage(char * progname) {
391 printf("%s: tests libutil humanize_number function\n", progname);
392 printf("Usage: %s [-nE] [-l num] [-v]\n\n", progname);
393 printf("Options:\n");
394 printf("\t-l num\tSet max length for result; buflen = num + 1\n");
395 printf("\t\t (NOTE: does not change expected result strings.)\n");
396 printf("\t-n\tInclude negative scale tests, which cause older libutil\n");
397 printf("\t\t version of function to coredump with assertion failure\n");
398 printf("\t-E\tInclude numbers > 1/2 Exa[byte] which currently fail\n");
399 printf("\t-v\tVerbose - always print summary results\n");
400 printf("\t-h, -?\tShow options\n");
403 /* Parse command line options */
405 read_options(int argc, char * const argv[], size_t *bufLength,
406 int *includeNegativeScale, int *includeExabytes, int *verbose) {
410 while ((ch = getopt(argc, argv, "nEh?vl:")) != -1) {
415 break; /* UNREACHABLE */
420 break; /* UNREACHABLE */
422 sscanf(optarg, "%zu", &temp);
423 *bufLength = temp + 1;
426 *includeNegativeScale = 1;
429 *includeExabytes = 1;
442 { HN_AUTOSCALE, "HN_AUTOSCALE" },
443 { HN_GETSCALE, "HN_GETSCALE" },
444 { HN_DIVISOR_1000, "HN_DIVISOR_1000"},
446 { HN_DECIMAL, "HN_DECIMAL"},
449 static const char *separator = "|";
451 /* Format flags parameter for meaningful display */
453 str_flags(int hn_flags, char *noFlags) {
457 result = malloc(MAX_STR_FLAGS_RESULT);
460 for (i = 0; i < sizeof flags / sizeof *flags; i++) {
461 if (hn_flags & flags[i].value) {
463 strlcat(result, separator,
464 MAX_STR_FLAGS_RESULT);
465 strlcat(result, flags[i].name, MAX_STR_FLAGS_RESULT);
469 if (strlen(result) == 0)
470 strlcat(result, noFlags, MAX_STR_FLAGS_RESULT);
475 /* Format scale parameter for meaningful display */
477 str_scale(int scale) {
480 if (scale == HN_AUTOSCALE || scale == HN_GETSCALE)
481 return str_flags(scale, "");
483 result = malloc(MAX_INT_STR_DIGITS);
485 snprintf(result, MAX_INT_STR_DIGITS, "%d", scale);
490 testskipped(size_t i)
493 printf("ok %lu # skip - not turned on\n", i);
497 main(int argc, char * const argv[])
500 char *flag_str, *scale_str;
502 size_t errcnt, tested, skipped;
506 int includeExabyteTests;
511 includeExabyteTests = 0;
514 read_options(argc, argv, &buflen, &includeNegScale,
515 &includeExabyteTests, &verbose);
517 buf = malloc(buflen);
523 printf("Warning: buffer size %zu != 4, expect some results to differ.\n", buflen);
525 printf("1..%lu\n", sizeof test_args / sizeof *test_args);
526 for (i = 0; i < sizeof test_args / sizeof *test_args; i++) {
528 if (test_args[i].num == INT64_MAX && buflen == 4) {
529 /* Start final tests which require buffer of 6 */
532 buf = malloc(buflen);
534 printf("Buffer length increased to %zu\n",
538 if (test_args[i].scale < 0 && ! includeNegScale) {
543 if (test_args[i].num >= halfExabyte && ! includeExabyteTests) {
549 r = humanize_number(buf, buflen, test_args[i].num, "",
550 test_args[i].scale, test_args[i].flags);
551 flag_str = str_flags(test_args[i].flags, "[no flags]");
552 scale_str = str_scale(test_args[i].scale);
554 if (r != test_args[i].retval) {
556 printf("wrong return value on index %lu, buflen: %zu, got: %d + \"%s\", expected %d + \"%s\"; num = %" PRId64 ", scale = %s, flags= %s.\n",
557 i, buflen, r, buf, test_args[i].retval,
558 test_args[i].res, test_args[i].num,
559 scale_str, flag_str);
561 printf("not ok %lu # return %d != %d\n", i, r,
562 test_args[i].retval);
564 } else if (strcmp(buf, test_args[i].res) != 0) {
566 printf("result mismatch on index %lu, got: \"%s\", expected \"%s\"; num = %" PRId64 ", scale = %s, flags= %s.\n",
567 i, buf, test_args[i].res, test_args[i].num,
568 scale_str, flag_str);
570 printf("not ok %lu # buf \"%s\" != \"%s\"\n", i,
571 buf, test_args[i].res);
575 printf("successful result on index %lu, returned %d, got: \"%s\"; num = %" PRId64 ", scale = %s, flags= %s.\n",
576 i, r, buf, test_args[i].num, scale_str,
579 printf("ok %lu\n", i);
585 printf("total errors: %lu/%lu tests, %lu skipped\n", errcnt,