20160308-test-twocomplement.c

#include <stdio.h>

int main ( void )
{
  char sc;
  unsigned char uc;
  sc = uc = -114;
  printf("%d\n",sc);
  printf("%u\n",sc);
  printf("%d\n",uc);
  printf("%u\n",uc);
  return 0;
}