lib/roken/snprintf-test.c

   1 /*
   2  * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
  32
  33 #include <config.h>
  34 #include "roken.h"
  35 #include <limits.h>
  36
  37 static int
  38 try (const char *format, ...)
  39 {
  40     int ret;
  41     va_list ap;
  42     char buf1[256], buf2[256];
  43
  44     va_start (ap, format);
  45     ret = rk_vsnprintf (buf1, sizeof(buf1), format, ap);
  46     if (ret >= sizeof(buf1))
  47         errx (1, "increase buf and try again");
  48     va_end (ap);
  49     va_start (ap, format);
  50     vsprintf (buf2, format, ap);
  51     ret = strcmp (buf1, buf2);
  52     if (ret)
  53         printf ("failed: format = \"%s\", \"%s\" != \"%s\"\n",
  54                 format, buf1, buf2);
  55     va_end (ap);
  56     return ret;
  57 }
  58
  59 static int
  60 cmp_with_sprintf_int (void)
  61 {
  62     int tot = 0;
  63     int int_values[] = {INT_MIN, -17, -1, 0, 1, 17, 4711, 65535, INT_MAX};
  64     int i;
  65
  66     for (i = 0; i < sizeof(int_values) / sizeof(int_values[0]); ++i) {
  67         tot += try ("%d", int_values[i]);
  68         tot += try ("%x", int_values[i]);
  69         tot += try ("%X", int_values[i]);
  70         tot += try ("%o", int_values[i]);
  71         tot += try ("%#x", int_values[i]);
  72         tot += try ("%#X", int_values[i]);
  73         tot += try ("%#o", int_values[i]);
  74         tot += try ("%10d", int_values[i]);
  75         tot += try ("%10x", int_values[i]);
  76         tot += try ("%10X", int_values[i]);
  77         tot += try ("%10o", int_values[i]);
  78         tot += try ("%#10x", int_values[i]);
  79         tot += try ("%#10X", int_values[i]);
  80         tot += try ("%#10o", int_values[i]);
  81         tot += try ("%-10d", int_values[i]);
  82         tot += try ("%-10x", int_values[i]);
  83         tot += try ("%-10X", int_values[i]);
  84         tot += try ("%-10o", int_values[i]);
  85         tot += try ("%-#10x", int_values[i]);
  86         tot += try ("%-#10X", int_values[i]);
  87         tot += try ("%-#10o", int_values[i]);
  88     }
  89     return tot;
  90 }
  91
  92 static int
  93 cmp_with_sprintf_long (void)
  94 {
  95     int tot = 0;
  96     long long_values[] = {LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX};
  97     int i;
  98
  99     for (i = 0; i < sizeof(long_values) / sizeof(long_values[0]); ++i) {
 100         tot += try ("%ld", long_values[i]);
 101         tot += try ("%lx", long_values[i]);
 102         tot += try ("%lX", long_values[i]);
 103         tot += try ("%lo", long_values[i]);
 104         tot += try ("%#lx", long_values[i]);
 105         tot += try ("%#lX", long_values[i]);
 106         tot += try ("%#lo", long_values[i]);
 107         tot += try ("%10ld", long_values[i]);
 108         tot += try ("%10lx", long_values[i]);
 109         tot += try ("%10lX", long_values[i]);
 110         tot += try ("%10lo", long_values[i]);
 111         tot += try ("%#10lx", long_values[i]);
 112         tot += try ("%#10lX", long_values[i]);
 113         tot += try ("%#10lo", long_values[i]);
 114         tot += try ("%-10ld", long_values[i]);
 115         tot += try ("%-10lx", long_values[i]);
 116         tot += try ("%-10lX", long_values[i]);
 117         tot += try ("%-10lo", long_values[i]);
 118         tot += try ("%-#10lx", long_values[i]);
 119         tot += try ("%-#10lX", long_values[i]);
 120         tot += try ("%-#10lo", long_values[i]);
 121     }
 122     return tot;
 123 }
 124
 125 #ifdef HAVE_LONG_LONG
 126
 127 /* XXX doesn't work as expected on lp64 platforms with sizeof(long
 128  * long) == sizeof(long) */
 129
 130 static int
 131 cmp_with_sprintf_long_long (void)
 132 {
 133     int tot = 0;
 134     long long long_long_values[] = {
 135         ((long long)LONG_MIN) -1, LONG_MIN, -17, -1,
 136         0,
 137         1, 17, 4711, 65535, LONG_MAX, ((long long)LONG_MAX) + 1};
 138     int i;
 139
 140     for (i = 0; i < sizeof(long_long_values) / sizeof(long_long_values[0]); ++i) {
 141         tot += try ("%lld", long_long_values[i]);
 142         tot += try ("%llx", long_long_values[i]);
 143         tot += try ("%llX", long_long_values[i]);
 144         tot += try ("%llo", long_long_values[i]);
 145         tot += try ("%#llx", long_long_values[i]);
 146         tot += try ("%#llX", long_long_values[i]);
 147         tot += try ("%#llo", long_long_values[i]);
 148         tot += try ("%10lld", long_long_values[i]);
 149         tot += try ("%10llx", long_long_values[i]);
 150         tot += try ("%10llX", long_long_values[i]);
 151         tot += try ("%10llo", long_long_values[i]);
 152         tot += try ("%#10llx", long_long_values[i]);
 153         tot += try ("%#10llX", long_long_values[i]);
 154         tot += try ("%#10llo", long_long_values[i]);
 155         tot += try ("%-10lld", long_long_values[i]);
 156         tot += try ("%-10llx", long_long_values[i]);
 157         tot += try ("%-10llX", long_long_values[i]);
 158         tot += try ("%-10llo", long_long_values[i]);
 159         tot += try ("%-#10llx", long_long_values[i]);
 160         tot += try ("%-#10llX", long_long_values[i]);
 161         tot += try ("%-#10llo", long_long_values[i]);
 162     }
 163     return tot;
 164 }
 165
 166 #endif
 167
 168 #if 0
 169 static int
 170 cmp_with_sprintf_float (void)
 171 {
 172     int tot = 0;
 173     double double_values[] = {-99999, -999, -17.4, -4.3, -3.0, -1.5, -1,
 174                               0, 0.1, 0.2342374852, 0.2340007,
 175                               3.1415926, 14.7845, 34.24758, 9999, 9999999};
 176     int i;
 177
 178     for (i = 0; i < sizeof(double_values) / sizeof(double_values[0]); ++i) {
 179         tot += try ("%f", double_values[i]);
 180         tot += try ("%10f", double_values[i]);
 181         tot += try ("%.2f", double_values[i]);
 182         tot += try ("%7.0f", double_values[i]);
 183         tot += try ("%5.2f", double_values[i]);
 184         tot += try ("%0f", double_values[i]);
 185         tot += try ("%#f", double_values[i]);
 186         tot += try ("%e", double_values[i]);
 187         tot += try ("%10e", double_values[i]);
 188         tot += try ("%.2e", double_values[i]);
 189         tot += try ("%7.0e", double_values[i]);
 190         tot += try ("%5.2e", double_values[i]);
 191         tot += try ("%0e", double_values[i]);
 192         tot += try ("%#e", double_values[i]);
 193         tot += try ("%E", double_values[i]);
 194         tot += try ("%10E", double_values[i]);
 195         tot += try ("%.2E", double_values[i]);
 196         tot += try ("%7.0E", double_values[i]);
 197         tot += try ("%5.2E", double_values[i]);
 198         tot += try ("%0E", double_values[i]);
 199         tot += try ("%#E", double_values[i]);
 200         tot += try ("%g", double_values[i]);
 201         tot += try ("%10g", double_values[i]);
 202         tot += try ("%.2g", double_values[i]);
 203         tot += try ("%7.0g", double_values[i]);
 204         tot += try ("%5.2g", double_values[i]);
 205         tot += try ("%0g", double_values[i]);
 206         tot += try ("%#g", double_values[i]);
 207         tot += try ("%G", double_values[i]);
 208         tot += try ("%10G", double_values[i]);
 209         tot += try ("%.2G", double_values[i]);
 210         tot += try ("%7.0G", double_values[i]);
 211         tot += try ("%5.2G", double_values[i]);
 212         tot += try ("%0G", double_values[i]);
 213         tot += try ("%#G", double_values[i]);
 214     }
 215     return tot;
 216 }
 217 #endif
 218
 219 static int
 220 test_null (void)
 221 {
 222     return rk_snprintf (NULL, 0, "foo") != 3;
 223 }
 224
 225 static int
 226 test_sizet (void)
 227 {
 228     int tot = 0;
 229     size_t sizet_values[] = { 0, 1, 2, 200, 4294967295u }; /* SIZE_MAX */
 230     char *result[] = { "0", "1", "2", "200", "4294967295" };
 231     int i;
 232
 233     for (i = 0; i < sizeof(sizet_values) / sizeof(sizet_values[0]); ++i) {
 234 #if 0
 235         tot += try("%zu", sizet_values[i]);
 236         tot += try("%zx", sizet_values[i]);
 237         tot += try("%zX", sizet_values[i]);
 238 #else
 239         char buf[256];
 240         rk_snprintf(buf, sizeof(buf), "%zu", sizet_values[i]);
 241         if (strcmp(buf, result[i]) != 0) {
 242             printf("%s != %s", buf, result[i]);
 243             tot++;
 244         }
 245 #endif
 246     }
 247     return tot;
 248 }
 249
 250
 251 int
 252 main (int argc, char **argv)
 253 {
 254     int ret = 0;
 255
 256     ret += cmp_with_sprintf_int ();
 257     ret += cmp_with_sprintf_long ();
 258 #ifdef HAVE_LONG_LONG
 259     ret += cmp_with_sprintf_long_long ();
 260 #endif
 261     ret += test_null ();
 262     ret += test_sizet ();
 263     return ret;
 264 }