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 extern int rk_snprintf(char *, size_t, const char *, ...);
  38 extern int rk_vsnprintf(char *, size_t, const char *, va_list);
  39
  40 static int
  41 try (const char *format, ...)
  42 {
  43     int ret;
  44     va_list ap;
  45     char buf1[256], buf2[256];
  46
  47     va_start (ap, format);
  48     ret = rk_vsnprintf (buf1, sizeof(buf1), format, ap);
  49     if (ret >= sizeof(buf1))
  50         errx (1, "increase buf and try again");
  51     va_end (ap);
  52     va_start (ap, format);
  53     vsprintf (buf2, format, ap);
  54     ret = strcmp (buf1, buf2);
  55     if (ret)
  56         printf ("failed: format = \"%s\", \"%s\" != \"%s\"\n",
  57                 format, buf1, buf2);
  58     va_end (ap);
  59     return ret;
  60 }
  61
  62 static int
  63 cmp_with_sprintf_int (void)
  64 {
  65     int tot = 0;
  66     int int_values[] = {INT_MIN, -17, -1, 0, 1, 17, 4711, 65535, INT_MAX};
  67     int i;
  68
  69     for (i = 0; i < sizeof(int_values) / sizeof(int_values[0]); ++i) {
  70         tot += try ("%d", 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 ("%#x", int_values[i]);
  75         tot += try ("%#X", int_values[i]);
  76         tot += try ("%#o", int_values[i]);
  77         tot += try ("%10d", 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 ("%#10x", int_values[i]);
  82         tot += try ("%#10X", int_values[i]);
  83         tot += try ("%#10o", int_values[i]);
  84         tot += try ("%-10d", 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         tot += try ("%-#10x", int_values[i]);
  89         tot += try ("%-#10X", int_values[i]);
  90         tot += try ("%-#10o", int_values[i]);
  91     }
  92     return tot;
  93 }
  94
  95 static int
  96 cmp_with_sprintf_long (void)
  97 {
  98     int tot = 0;
  99     long long_values[] = {LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX};
 100     int i;
 101
 102     for (i = 0; i < sizeof(long_values) / sizeof(long_values[0]); ++i) {
 103         tot += try ("%ld", 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 ("%#lx", long_values[i]);
 108         tot += try ("%#lX", long_values[i]);
 109         tot += try ("%#lo", long_values[i]);
 110         tot += try ("%10ld", 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 ("%#10lx", long_values[i]);
 115         tot += try ("%#10lX", long_values[i]);
 116         tot += try ("%#10lo", long_values[i]);
 117         tot += try ("%-10ld", 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         tot += try ("%-#10lx", long_values[i]);
 122         tot += try ("%-#10lX", long_values[i]);
 123         tot += try ("%-#10lo", long_values[i]);
 124     }
 125     return tot;
 126 }
 127
 128 #ifdef HAVE_LONG_LONG
 129
 130 /* XXX doesn't work as expected on lp64 platforms with sizeof(long
 131  * long) == sizeof(long) */
 132
 133 static int
 134 cmp_with_sprintf_long_long (void)
 135 {
 136     int tot = 0;
 137     long long long_long_values[] = {
 138         ((long long)LONG_MIN) - (sizeof(long long) > sizeof(long)),
 139         LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX,
 140         ((long long)LONG_MAX) + (sizeof(long long) > sizeof(long))
 141     };
 142     int i;
 143
 144     for (i = 0; i < sizeof(long_long_values) / sizeof(long_long_values[0]); ++i) {
 145         tot += try ("%lld", long_long_values[i]);
 146         tot += try ("%llx", long_long_values[i]);
 147         tot += try ("%llX", long_long_values[i]);
 148         tot += try ("%llo", long_long_values[i]);
 149         tot += try ("%#llx", long_long_values[i]);
 150         tot += try ("%#llX", long_long_values[i]);
 151         tot += try ("%#llo", long_long_values[i]);
 152         tot += try ("%10lld", long_long_values[i]);
 153         tot += try ("%10llx", long_long_values[i]);
 154         tot += try ("%10llX", long_long_values[i]);
 155         tot += try ("%10llo", 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 ("%-10lld", long_long_values[i]);
 160         tot += try ("%-10llx", long_long_values[i]);
 161         tot += try ("%-10llX", long_long_values[i]);
 162         tot += try ("%-10llo", long_long_values[i]);
 163         tot += try ("%-#10llx", long_long_values[i]);
 164         tot += try ("%-#10llX", long_long_values[i]);
 165         tot += try ("%-#10llo", long_long_values[i]);
 166     }
 167     return tot;
 168 }
 169
 170 #endif
 171
 172 #if 0
 173 static int
 174 cmp_with_sprintf_float (void)
 175 {
 176     int tot = 0;
 177     double double_values[] = {-99999, -999, -17.4, -4.3, -3.0, -1.5, -1,
 178                               0, 0.1, 0.2342374852, 0.2340007,
 179                               3.1415926, 14.7845, 34.24758, 9999, 9999999};
 180     int i;
 181
 182     for (i = 0; i < sizeof(double_values) / sizeof(double_values[0]); ++i) {
 183         tot += try ("%f", double_values[i]);
 184         tot += try ("%10f", double_values[i]);
 185         tot += try ("%.2f", double_values[i]);
 186         tot += try ("%7.0f", double_values[i]);
 187         tot += try ("%5.2f", double_values[i]);
 188         tot += try ("%0f", double_values[i]);
 189         tot += try ("%#f", double_values[i]);
 190         tot += try ("%e", double_values[i]);
 191         tot += try ("%10e", double_values[i]);
 192         tot += try ("%.2e", double_values[i]);
 193         tot += try ("%7.0e", double_values[i]);
 194         tot += try ("%5.2e", double_values[i]);
 195         tot += try ("%0e", double_values[i]);
 196         tot += try ("%#e", double_values[i]);
 197         tot += try ("%E", double_values[i]);
 198         tot += try ("%10E", double_values[i]);
 199         tot += try ("%.2E", double_values[i]);
 200         tot += try ("%7.0E", double_values[i]);
 201         tot += try ("%5.2E", double_values[i]);
 202         tot += try ("%0E", double_values[i]);
 203         tot += try ("%#E", double_values[i]);
 204         tot += try ("%g", double_values[i]);
 205         tot += try ("%10g", double_values[i]);
 206         tot += try ("%.2g", double_values[i]);
 207         tot += try ("%7.0g", double_values[i]);
 208         tot += try ("%5.2g", double_values[i]);
 209         tot += try ("%0g", double_values[i]);
 210         tot += try ("%#g", double_values[i]);
 211         tot += try ("%G", double_values[i]);
 212         tot += try ("%10G", double_values[i]);
 213         tot += try ("%.2G", double_values[i]);
 214         tot += try ("%7.0G", double_values[i]);
 215         tot += try ("%5.2G", double_values[i]);
 216         tot += try ("%0G", double_values[i]);
 217         tot += try ("%#G", double_values[i]);
 218     }
 219     return tot;
 220 }
 221 #endif
 222
 223 static int
 224 test_null (void)
 225 {
 226     return rk_snprintf (NULL, 0, "foo") != 3;
 227 }
 228
 229 static int
 230 test_sizet (void)
 231 {
 232     int tot = 0;
 233     size_t sizet_values[] = { 0, 1, 2, 200, 4294967295u }; /* SIZE_MAX */
 234     char *result[] = { "0", "1", "2", "200", "4294967295" };
 235     int i;
 236
 237     for (i = 0; i < sizeof(sizet_values) / sizeof(sizet_values[0]); ++i) {
 238 #if 0
 239         tot += try("%zu", sizet_values[i]);
 240         tot += try("%zx", sizet_values[i]);
 241         tot += try("%zX", sizet_values[i]);
 242 #else
 243         char buf[256];
 244         rk_snprintf(buf, sizeof(buf), "%zu", sizet_values[i]);
 245         if (strcmp(buf, result[i]) != 0) {
 246             printf("%s != %s", buf, result[i]);
 247             tot++;
 248         }
 249 #endif
 250     }
 251     return tot;
 252 }
 253
 254
 255 int
 256 main (int argc, char **argv)
 257 {
 258     int ret = 0;
 259
 260     ret += cmp_with_sprintf_int ();
 261     ret += cmp_with_sprintf_long ();
 262 #ifdef HAVE_LONG_LONG
 263     ret += cmp_with_sprintf_long_long ();
 264 #endif
 265     ret += test_null ();
 266     ret += test_sizet ();
 267     return ret;
 268 }