third_party/ulib/musl/src/multibyte/internal.c

#include "internal.h"

#define C(x) (x < 2 ? -1 : (R(0x80, 0xc0) | x))
#define D(x) C((x + 16))
#define E(x) ((x == 0 ? R(0xa0, 0xc0) : x == 0xd ? R(0x80, 0xa0) : R(0x80, 0xc0)) | (R(0x80, 0xc0) >> 6) | x)
#define F(x) ((x >= 5 ? 0 : x == 0 ? R(0x90, 0xc0) : x == 4 ? R(0x80, 0xa0) : R(0x80, 0xc0)) | (R(0x80, 0xc0) >> 6) | (R(0x80, 0xc0) >> 12) | x)

const uint32_t bittab[] = {
    C(0x2), C(0x3), C(0x4), C(0x5), C(0x6), C(0x7),
    C(0x8), C(0x9), C(0xa), C(0xb), C(0xc), C(0xd), C(0xe), C(0xf),
    D(0x0), D(0x1), D(0x2), D(0x3), D(0x4), D(0x5), D(0x6), D(0x7),
    D(0x8), D(0x9), D(0xa), D(0xb), D(0xc), D(0xd), D(0xe), D(0xf),
    E(0x0), E(0x1), E(0x2), E(0x3), E(0x4), E(0x5), E(0x6), E(0x7),
    E(0x8), E(0x9), E(0xa), E(0xb), E(0xc), E(0xd), E(0xe), E(0xf),
    F(0x0), F(0x1), F(0x2), F(0x3), F(0x4)};