sdcc/support/regression/tests/bug-3728.c

   1 /** tests for string comparison functions, in particular for the handling of non-printable characters.
   2     In bug #3728, the sign waas wrong on the strcmp result for some string with characters outside the ASCII range.
   3 */
   4
   5 #include <testfwk.h>
   6 #include <string.h>
   7
   8 const unsigned char s0[] = {0, 0};
   9 const unsigned char s1[] = {1, 0};
  10 const unsigned char s100[] = {100, 0};
  11 const unsigned char s200[] = {200, 0};
  12
  13 static void
  14 teststrcmp (void)
  15 {
  16   ASSERT (strcmp(s0, s1) < 0);
  17   ASSERT (strncmp(s0, s1, 2) < 0);
  18   ASSERT (memcmp(s0, s1, 2) < 0);
  19   ASSERT (strcmp(s0, s100) < 0);
  20   ASSERT (strncmp(s0, s100, 2) < 0);
  21   ASSERT (memcmp(s0, s100, 2) < 0);
  22   ASSERT (strcmp(s0, s200) < 0);
  23   ASSERT (strncmp(s0, s200, 2) < 0);
  24   ASSERT (memcmp(s0, s200, 2) < 0);
  25   ASSERT (strcmp(s100, s200) < 0);
  26   ASSERT (strncmp(s100, s200, 2) < 0);
  27   ASSERT (memcmp(s100, s200, 2) < 0);
  28   ASSERT (strcmp(s1, s0) > 0);
  29   ASSERT (strncmp(s1, s0, 2) > 0);
  30   ASSERT (memcmp(s1, s0, 2) > 0);
  31   ASSERT (strcmp(s100, s0) > 0);
  32   ASSERT (strncmp(s100, s0, 2) > 0);
  33   ASSERT (memcmp(s100, s0, 2) > 0);
  34 #if !defined(__SDCC_pdk13) && !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) // Lack of memory
  35   ASSERT (strcmp(s200, s1) > 0);
  36   ASSERT (strncmp(s200, s1, 2) > 0);
  37   ASSERT (memcmp(s200, s1, 2) > 0);
  38   ASSERT (strcmp(s200, s100) > 0);
  39   ASSERT (strncmp(s200, s100, 2) > 0);
  40   ASSERT (memcmp(s200, s100, 2) > 0);
  41 #endif
  42 }
  43