From: "Jamie Macleod" <[EMAIL PROTECTED]>
Subject: sizeof(DateType) == 2 ?
> Can someone explain why sizeof(DateType) gives me 2? DateType is a
> structure declared as 3 UInt16 values, and of course if I do a
> (sizeof(UInt16) * 3) I get 6. Shouldn't I be getting 6 for DateType?
DateType is not a structure with 3 UInt16s. It is a single UInt16 used as a
bit field (16 bits, 2 bytes).
typedef struct {
UInt16 year :7;
UInt16 month :4;
UInt16 day :5;
} DateType;
7 bits are used for the year, 4 bits for the month, and 5 bits for the day.
You might want to pick up a book on C.
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