usr/src/cmd/sendmail/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 #pragma ident   "%Z%%M% %I%     %E% SMI"
  11
  12 #include <sm/gen.h>
  13 SM_IDSTR(id, "@(#)$Id: t-float.c,v 1.16 2001/02/02 23:11:46 ca Exp $")
  14
  15 #include <sm/limits.h>
  16 #include <sm/io.h>
  17 #include <sm/string.h>
  18 #include <sm/test.h>
  19 #include <sm/types.h>
  20
  21 int
  22 main(argc, argv)
  23         int argc;
  24         char **argv;
  25 {
  26         double d, d2;
  27         double ld;
  28         char buf[128];
  29         char *r;
  30
  31         /*
  32         **  Sendmail uses printf and scanf with doubles,
  33         **  so make sure that this works.
  34         */
  35
  36         sm_test_begin(argc, argv, "test floating point stuff");
  37
  38         d = 1.125;
  39         sm_snprintf(buf, sizeof(buf), "%d %.3f %d", 0, d, 1);
  40         r = "0 1.125 1";
  41         if (!SM_TEST(strcmp(buf, r) == 0))
  42                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  43                                      "got %s instead\n", buf);
  44
  45         d = 1.125;
  46         sm_snprintf(buf, sizeof(buf), "%.3f", d);
  47         r = "1.125";
  48         if (!SM_TEST(strcmp(buf, r) == 0))
  49                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  50                                      "got %s instead\n", buf);
  51         d2 = 0.0;
  52         sm_io_sscanf(buf, "%lf", &d2);
  53 #if SM_CONF_BROKEN_STRTOD
  54         if (d != d2)
  55         {
  56                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  57                                      "wanted %f, got %f\n", d, d2);
  58                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  59                                      "error ignored since SM_CONF_BROKEN_STRTOD is set for this OS\n");
  60         }
  61 #else /* SM_CONF_BROKEN_STRTOD */
  62         if (!SM_TEST(d == d2))
  63                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  64                                      "wanted %f, got %f\n", d, d2);
  65 #endif /* SM_CONF_BROKEN_STRTOD */
  66
  67         ld = 2.5;
  68         sm_snprintf(buf, sizeof(buf), "%.3f %.1f", d, ld);
  69         r = "1.125 2.5";
  70         if (!SM_TEST(strcmp(buf, r) == 0))
  71                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
  72                                      "got %s instead\n", buf);
  73         return sm_test_end();
  74 }