// Compile: cc -std=c23 test_7_12_stdbit.c
#if __has_include(<stdbit.h>)
#include <stdbit.h>
#endif
#include <assert.h>

int main(void) {
  unsigned x = 0b101100;
  // C23 stdbit: stdc_count_ones
#if __has_include(<stdbit.h>)
  assert(stdc_count_ones(x) == 3);
#endif
  return 0;
}