Lox Language implementation in C, code for the bytecode virtual machine
N.B. : Look up the following: § 6.7.2.1 13 (C specification)
Within a structure object, the non-bit-field members and the units in which bit-fields reside have addresses that increase in the order in which they are declared.
A pointer to a structure object, suitably converted, points to its initial member (or if that member is a bit-field, then to the unit in which it resides), and vice versa. There may be unnamed padding within a structure object, but not at its beginning.