[PD-dev] Bit fields in t_editor

[Henri Augusto Bisognini]

Quick C question: i was taking a look at struct _editor and I've noticed that the bitfields sum up to  6 with no (2 bits) padding for alignment.

typedef struct _editor
{
    t_updateheader e_upd;           /* update header structure */
    [...]
    unsigned int e_onmotion: 3;     /* action to take on motion */
    unsigned int e_lastmoved: 1;    /* one if mouse has moved since click */
    unsigned int e_textdirty: 1;    /* one if e_textedfor has changed */
    unsigned int e_selectedline: 1; /* one if a line is selected */
    t_clock *e_clock;               /* clock to filter GUI move messages */
    int e_xnew;                     /* xpos for next move event */
    [...]

} t_editor;

All the resources I've found on google used some padding (either manually or with a zero value).

My guess here is that since the next member is not a bit field then the compiler will align it for you. Is that right?

Cheers,
Henri.
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