SA> HS> typedef struct
SA> HS> {
SA> HS>    char bit0:1;
SA> HS>    char bit1:1;
SA> HS>    char bit2:1;
SA> HS>    char bit3:1;
SA> HS>    char bit4:1;
SA> HS>    char bit5:1;
SA> HS>    char bit6:1;
SA> HS>    char bit7:1;
SA> HS> } FLAGS;
SA>   That's not a bit field, it's a structure of chars, surely?
   True enough.
typedef struct
{
   unsigned int
      bit0:1,
      bit1:1,
      bit2:1,
      bit3:1,
      bit4:1,
      bit5:1,
      bit6:1,
      bit7:1,
      bit8:1,
      bit9:1,
      bita:1,
      bitb:1,
      bitc:1,
      bitd:1,
      bite:1,
      bitf:1;
}   SixteenBits;

> ] Presently orbiting Mars in a Supertramp album...............

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