sdcc/support/regression/tests/bitcount.c.in

   1 /* Test count operations from stdbit.h
   2
   3    type: unsigned short, unsigned int, unsigned long, unsigned long long
   4  */
   5
   6 #include <testfwk.h>
   7
   8 #ifdef __SDCC // Todo: Enable for all C23 implementations
   9 #pragma std_c23
  10 #include <stdbit.h>
  11 #endif
  12
  13 volatile {type} i, j;
  14
  15 void
  16 testCount(void)
  17 {
  18 #ifdef __SDCC // Todo: Enable for all C23 implementations
  19         i = 0x10;
  20         j = ~i;
  21         ASSERT (stdc_count_ones(i) == 1);
  22         ASSERT (stdc_count_zeros(j) == 1);
  23         ASSERT (stdc_has_single_bit(i));
  24         ASSERT (!stdc_has_single_bit(j));
  25
  26         i = 0xff;
  27         j = ~i;
  28         ASSERT (stdc_count_ones(i) == 8);
  29         ASSERT (stdc_count_zeros(j) == 8);
  30         ASSERT (!stdc_has_single_bit(i));
  31         ASSERT (!stdc_has_single_bit(j));
  32 #endif
  33 }
  34