stdio-common/tstdiomisc.c

   1 #include <float.h>
   2 #include <math.h>
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include <wchar.h>
   6
   7 static int
   8 t1 (void)
   9 {
  10   int n = -1;
  11   sscanf ("abc  ", "abc %n", &n);
  12   printf ("t1: count=%d\n", n);
  13
  14   return n != 5;
  15 }
  16
  17 static int
  18 t2 (void)
  19 {
  20   int result = 0;
  21   int n;
  22   long N;
  23   int retval;
  24 #define SCAN(INPUT, FORMAT, VAR, EXP_RES, EXP_VAL) \
  25   VAR = -1; \
  26   retval = sscanf (INPUT, FORMAT, &VAR); \
  27   printf ("sscanf (\"%s\", \"%s\", &x) => %d, x = %ld\n", \
  28           INPUT, FORMAT, retval, (long int) VAR); \
  29   result |= retval != EXP_RES || VAR != EXP_VAL
  30
  31   SCAN ("12345", "%ld", N, 1, 12345);
  32   SCAN ("12345", "%llllld", N, 0, -1);
  33   SCAN ("12345", "%LLLLLd", N, 0, -1);
  34   SCAN ("test ", "%*s%n",  n, 0, 4);
  35   SCAN ("test ", "%2*s%n",  n, 0, -1);
  36   SCAN ("12 ",   "%l2d",  n, 0, -1);
  37   SCAN ("12 ",   "%2ld",  N, 1, 12);
  38
  39   n = -1;
  40   N = -1;
  41   retval = sscanf ("1 1", "%d %Z", &n, &N);
  42   printf ("sscanf (\"1 1\", \"%%d %%Z\", &n, &N) => %d, n = %d, N = %ld\n", \
  43           retval, n, N); \
  44   result |= retval != 1 || n != 1 || N != -1;
  45
  46   return result;
  47 }
  48
  49 volatile double qnanval;
  50 volatile long double lqnanval;
  51 /* A sNaN is only guaranteed to be representable in variables with static (or
  52    thread-local) storage duration.  */
  53 static volatile double snanval = __builtin_nans ("");
  54 static volatile double msnanval = -__builtin_nans ("");
  55 static volatile long double lsnanval = __builtin_nansl ("");
  56 static volatile long double lmsnanval = -__builtin_nansl ("");
  57 volatile double infval;
  58 volatile long double linfval;
  59
  60
  61 static int
  62 F (void)
  63 {
  64   char buf[80];
  65   wchar_t wbuf[40];
  66   int result = 0;
  67
  68   qnanval = NAN;
  69
  70   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
  71             qnanval, qnanval, qnanval, qnanval,
  72             qnanval, qnanval, qnanval, qnanval);
  73   result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
  74   printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
  75
  76   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
  77             -qnanval, -qnanval, -qnanval, -qnanval,
  78             -qnanval, -qnanval, -qnanval, -qnanval);
  79   result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
  80   printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
  81           buf);
  82
  83   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
  84             snanval, snanval, snanval, snanval,
  85             snanval, snanval, snanval, snanval);
  86   result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
  87   printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
  88
  89   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
  90             msnanval, msnanval, msnanval, msnanval,
  91             msnanval, msnanval, msnanval, msnanval);
  92   result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
  93   printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
  94           buf);
  95
  96   infval = DBL_MAX * DBL_MAX;
  97
  98   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
  99             infval, infval, infval, infval, infval, infval, infval, infval);
 100   result |= strcmp (buf, "inf INF inf INF inf INF inf INF") != 0;
 101   printf ("expected \"inf INF inf INF inf INF inf INF\", got \"%s\"\n", buf);
 102
 103   snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
 104             -infval, -infval, -infval, -infval,
 105             -infval, -infval, -infval, -infval);
 106   result |= strcmp (buf, "-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
 107   printf ("expected \"-inf -INF -inf -INF -inf -INF -inf -INF\", got \"%s\"\n",
 108           buf);
 109
 110   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 111             qnanval, qnanval, qnanval, qnanval,
 112             qnanval, qnanval, qnanval, qnanval);
 113   result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
 114   printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
 115
 116   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 117             -qnanval, -qnanval, -qnanval, -qnanval,
 118             -qnanval, -qnanval, -qnanval, -qnanval);
 119   result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 120   printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
 121           wbuf);
 122
 123   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 124             snanval, snanval, snanval, snanval,
 125             snanval, snanval, snanval, snanval);
 126   result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
 127   printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
 128
 129   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 130             msnanval, msnanval, msnanval, msnanval,
 131             msnanval, msnanval, msnanval, msnanval);
 132   result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 133   printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
 134           wbuf);
 135
 136   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 137             infval, infval, infval, infval, infval, infval, infval, infval);
 138   result |= wcscmp (wbuf, L"inf INF inf INF inf INF inf INF") != 0;
 139   printf ("expected L\"inf INF inf INF inf INF inf INF\", got L\"%S\"\n", wbuf);
 140
 141   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
 142             -infval, -infval, -infval, -infval,
 143             -infval, -infval, -infval, -infval);
 144   result |= wcscmp (wbuf, L"-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
 145   printf ("expected L\"-inf -INF -inf -INF -inf -INF -inf -INF\", got L\"%S\"\n",
 146           wbuf);
 147
 148   lqnanval = NAN;
 149
 150   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 151             lqnanval, lqnanval, lqnanval, lqnanval,
 152             lqnanval, lqnanval, lqnanval, lqnanval);
 153   result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
 154   printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
 155
 156   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 157             -lqnanval, -lqnanval, -lqnanval, -lqnanval,
 158             -lqnanval, -lqnanval, -lqnanval, -lqnanval);
 159   result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 160   printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
 161           buf);
 162
 163   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 164             lsnanval, lsnanval, lsnanval, lsnanval,
 165             lsnanval, lsnanval, lsnanval, lsnanval);
 166   result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
 167   printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
 168
 169   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 170             lmsnanval, lmsnanval, lmsnanval, lmsnanval,
 171             lmsnanval, lmsnanval, lmsnanval, lmsnanval);
 172   result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 173   printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
 174           buf);
 175
 176   linfval = LDBL_MAX * LDBL_MAX;
 177
 178   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 179             linfval, linfval, linfval, linfval,
 180             linfval, linfval, linfval, linfval);
 181   result |= strcmp (buf, "inf INF inf INF inf INF inf INF") != 0;
 182   printf ("expected \"inf INF inf INF inf INF inf INF\", got \"%s\"\n", buf);
 183
 184   snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
 185             -linfval, -linfval, -linfval, -linfval,
 186             -linfval, -linfval, -linfval, -linfval);
 187   result |= strcmp (buf, "-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
 188   printf ("expected \"-inf -INF -inf -INF -inf -INF -inf -INF\", got \"%s\"\n",
 189           buf);
 190
 191   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 192             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 193             lqnanval, lqnanval, lqnanval, lqnanval,
 194             lqnanval, lqnanval, lqnanval, lqnanval);
 195   result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
 196   printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
 197
 198   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 199             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 200             -lqnanval, -lqnanval, -lqnanval, -lqnanval,
 201             -lqnanval, -lqnanval, -lqnanval, -lqnanval);
 202   result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 203   printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
 204           wbuf);
 205
 206   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 207             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 208             lsnanval, lsnanval, lsnanval, lsnanval,
 209             lsnanval, lsnanval, lsnanval, lsnanval);
 210   result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
 211   printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
 212
 213   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 214             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 215             lmsnanval, lmsnanval, lmsnanval, lmsnanval,
 216             lmsnanval, lmsnanval, lmsnanval, lmsnanval);
 217   result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
 218   printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
 219           wbuf);
 220
 221   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 222             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 223             linfval, linfval, linfval, linfval,
 224             linfval, linfval, linfval, linfval);
 225   result |= wcscmp (wbuf, L"inf INF inf INF inf INF inf INF") != 0;
 226   printf ("expected L\"inf INF inf INF inf INF inf INF\", got L\"%S\"\n", wbuf);
 227
 228   swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
 229             L"%La %LA %Le %LE %Lf %LF %Lg %LG",
 230             -linfval, -linfval, -linfval, -linfval,
 231             -linfval, -linfval, -linfval, -linfval);
 232   result |= wcscmp (wbuf, L"-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
 233   printf ("expected L\"-inf -INF -inf -INF -inf -INF -inf -INF\", got L\"%S\"\n",
 234           wbuf);
 235
 236   return result;
 237 }
 238
 239 int
 240 main (int argc, char *argv[])
 241 {
 242   int result = 0;
 243
 244   result |= t1 ();
 245   result |= t2 ();
 246   result |= F ();
 247
 248   result |= fflush (stdout) == EOF;
 249
 250   return result;
 251 }