contrib/sendmail-8.13.4/libsm/t-float.c

   1 /*
   2  * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  *
   5  * By using this file, you agree to the terms and conditions set
   6  * forth in the LICENSE file which can be found at the top level of
   7  * the sendmail distribution.
   8  */
   9
  10 #include <sm/gen.h>
  11 SM_IDSTR(id, "@(#)$Id: t-float.c,v 1.18 2001/09/11 04:04:49 gshapiro Exp $")
  12
  13 #include <sm/limits.h>
  14 #include <sm/io.h>
  15 #include <sm/string.h>
  16 #include <sm/test.h>
  17 #include <sm/types.h>
  18
  19 int
  20 main(argc, argv)
  21         int argc;
  22         char **argv;
  23 {
  24         double d, d2;
  25         double ld;
  26         char buf[128];
  27         char *r;
  28
  29         /*
  30         **  Sendmail uses printf and scanf with doubles,
  31         **  so make sure that this works.
  32         */
  33
  34         sm_test_begin(argc, argv, "test floating point stuff");
  35
  36         d = 1.125;
  37         sm_snprintf(buf, sizeof(buf), "%d %.3f %d", 0, d, 1);
  38         r = "0 1.125 1";
  39         if (!SM_TEST(strcmp(buf, r) == 0))
  40                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  41                                      "got %s instead\n", buf);
  42
  43         d = 1.125;
  44         sm_snprintf(buf, sizeof(buf), "%.3f", d);
  45         r = "1.125";
  46         if (!SM_TEST(strcmp(buf, r) == 0))
  47                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  48                                      "got %s instead\n", buf);
  49         d2 = 0.0;
  50         sm_io_sscanf(buf, "%lf", &d2);
  51 #if SM_CONF_BROKEN_STRTOD
  52         if (d != d2)
  53         {
  54                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  55                                      "wanted %f, got %f\n", d, d2);
  56                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  57                                      "error ignored since SM_CONF_BROKEN_STRTOD is set for this OS\n");
  58         }
  59 #else /* SM_CONF_BROKEN_STRTOD */
  60         if (!SM_TEST(d == d2))
  61                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  62                                      "wanted %f, got %f\n", d, d2);
  63 #endif /* SM_CONF_BROKEN_STRTOD */
  64
  65         ld = 2.5;
  66         sm_snprintf(buf, sizeof(buf), "%.3f %.1f", d, ld);
  67         r = "1.125 2.5";
  68         if (!SM_TEST(strcmp(buf, r) == 0))
  69                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  70                                      "got %s instead\n", buf);
  71         return sm_test_end();
  72 }