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glibc  2.9
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tst-strftime.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Defines

#define ntests   (sizeof (tests) / sizeof (tests[0]))
#define nftests   (sizeof (ftests) / sizeof (ftests[0]))
#define TEST_FUNCTION   do_test ()

Functions

static int do_test (void)

Variables

struct {
const char * fmt
size_t min
size_t max
tests []

Define Documentation

#define nftests   (sizeof (ftests) / sizeof (ftests[0]))
#define ntests   (sizeof (tests) / sizeof (tests[0]))

Definition at line 19 of file tst-strftime.c.

#define TEST_FUNCTION   do_test ()

Definition at line 110 of file tst-strftime.c.


Function Documentation

static int do_test ( void  ) [static]

Definition at line 23 of file tst-strftime.c.

{
  size_t cnt;
  int result = 0;

  time_t tnow = time (NULL);
  struct tm *now = localtime (&tnow);

  for (cnt = 0; cnt < ntests; ++cnt)
    {
      size_t size = 0;
      int res;
      char *buf = NULL;

      do
       {
         size += 500;
         buf = (char *) realloc (buf, size);
         if (buf == NULL)
           {
             puts ("out of memory");
             exit (1);
           }

         res = strftime (buf, size, tests[cnt].fmt, now);
         if (res != 0)
           break;
       }
      while (size < tests[cnt].max);

      if (res == 0)
       {
         printf ("%Zu: %s: res == 0 despite size == %Zu\n",
                cnt, tests[cnt].fmt, size);
         result = 1;
       }
      else if (size < tests[cnt].min)
       {
         printf ("%Zu: %s: size == %Zu was enough\n",
                cnt, tests[cnt].fmt, size);
         result = 1;
       }
      else
       printf ("%Zu: %s: size == %Zu: OK\n", cnt, tests[cnt].fmt, size);

      free (buf);
    }

  struct tm ttm =
    {
      /* Initialize the fields which are needed in the tests.  */
      .tm_mday = 1,
      .tm_hour = 2
    };
  const struct
  {
    const char *fmt;
    const char *exp;
    size_t n;
  } ftests[] =
    {
      { "%-e", "1", 1 },
      { "%-k", "2", 1 },
      { "%-l", "2", 1 },
    };
#define nftests (sizeof (ftests) / sizeof (ftests[0]))
  for (cnt = 0; cnt < nftests; ++cnt)
    {
      char buf[100];
      size_t r = strftime (buf, sizeof (buf), ftests[cnt].fmt, &ttm);
      if (r != ftests[cnt].n)
       {
         printf ("strftime(\"%s\") returned %zu not %zu\n",
                ftests[cnt].fmt, r, ftests[cnt].n);
         result = 1;
       }
      if (strcmp (buf, ftests[cnt].exp) != 0)
       {
         printf ("strftime(\"%s\") produced \"%s\" not \"%s\"\n",
                ftests[cnt].fmt, buf, ftests[cnt].exp);
         result = 1;
       }
    }

  return result;
}

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Variable Documentation

struct { ... } tests[] [static]