2 * Copyright © 2023 Nick Bowler
4 * License WTFPL2: Do What The Fuck You Want To Public License, version 2.
5 * This is free software: you are free to do what the fuck you want to.
6 * There is NO WARRANTY, to the extent permitted by law.
12 #define XTRA_PASTE(a, b) a ## b
13 #define XTRA_PASTE2(a, b) XTRA_PASTE(a, b)
15 #define XTRA_ARRAYSIZE(a) (sizeof (a) / sizeof (a)[0])
18 * This macro may be used to simplify construction of a 'struct option'
19 * array from the packed format produced by gen-options.awk.
21 * Expanding this in a function will
23 * (1) declare a constant array with static storage duration that
24 * contains the packed representation, and
25 * (2) declare an array of struct option of suitable length, with
27 * (3) emit code to fill the struct option array from the packed
30 * The uint_leastXX_t typedefs must be in scope in order to use this macro.
32 #define XTRA_PACKED_LOPTS(name) \
33 static const XTRA_PASTE2(XTRA_PASTE2(uint_least, LOPT_PACK_BITS2), _t) \
34 name##_packed[] = { LOPTS_PACKED_INITIALIZER }; \
35 struct option name[XTRA_ARRAYSIZE(name##_packed) + 1] = {0}; \
38 for (i = 0; i < XTRA_ARRAYSIZE(name##_packed); i++) \
39 LOPT_UNPACK(name[i], name##_packed[i]); \