21 Feb
2014
21 Feb
'14
3:32 a.m.
Can anyone explain what's going on with this in m_pd.h:
typedef struct _scalar /* a graphical object holding data */ { t_gobj sc_gobj; /* header for graphical object */ t_symbol *sc_template; /* template name (LATER replace with pointer) */ t_word sc_vec[1]; /* indeterminate-length array of words */ } t_scalar;
How is a static t_word array of size 1 an indeterminate-length array? Is its placement as the last member of the struct required?
I see lots of mysterious casts in the internals of Pd's data structures. What's the trick here, and is it documented anywhere on the interwebs, a C standard doc, etc.?
Thanks, Jonathan