ci8  = -1 << 7
	ci16 = -1<<15 + 100
	ci32 = -1<<31 + 100000
	ci64 = -1<<63 + 10000000001

	cu8  = 1<<8 - 1
	cu16 = 1<<16 - 1234
	cu32 = 1<<32 - 1234567
	cu64 = 1<<64 - 1234567890123

	cf32 = 1e8 + 0.5
	cf64 = -1e8 + 0.5
)

var (
	i8  int8  = ci8
	i16 int16 = ci16
	i32 int32 = ci32
	i64 int64 = ci64

	u8  uint8  = cu8
	u16 uint16 = cu16
	u32 uint32 = cu32
	u64 uint64 = cu64

	return a[1]
}

func main() {
	// Test equality.
	if u16 != iu16 {
		panic("u16 != iu16")
	}
	if u16 != ju16 {
		panic("u16 != ju16")
	}
	if u32 != iu32 {
		panic("u32 != iu32")
	}
	if u32 != ju32 {
		panic("u32 != ju32")
	}
	if u64 != iu64 {
		panic("u64 != iu64")
	}
	if u64 != ju64 {
		panic("u64 != ju64")
	}
	if u128 != iu128 {
		panic("u128 != iu128")
	}

	si64, si32, si16, si8 := float32(-1<<63), float32(-1<<31), float32(-1<<15), float32(-1<<7)

	// integer to float
	if float64(u64) != du64 {
		t.Errorf("float64(u64) != du64")
	}
	if float64(u32) != du32 {
		t.Errorf("float64(u32) != du32")
	}
	if float64(u16) != du16 {
		t.Errorf("float64(u16) != du16")
	}
	if float64(u8) != du8 {
		t.Errorf("float64(u8) != du8")
	}
	if float64(i64) != di64 {

		case tu32*100 + ti8:
			u32 = uint32(v); i8 = int8(u32); w = big(i8)
		case tu32*100 + tu8:
			u32 = uint32(v); u8 = uint8(u32); w = big(u8)
		case tu32*100 + ti16:
			u32 = uint32(v); i16 = int16(u32); w = big(i16)
		case tu32*100 + tu16:
			u32 = uint32(v); u16 = uint16(u32); w = big(u16)
		case tu32*100 + ti32:
			u32 = uint32(v); i32 = int32(u32); w = big(i32)
		case tu32*100 + tu32:

func (v TU) String() string   { return Sprintf("U: %d", uint(v)) }
func (v TU8) String() string  { return Sprintf("U8: %d", uint8(v)) }
func (v TU16) String() string { return Sprintf("U16: %d", uint16(v)) }
func (v TU32) String() string { return Sprintf("U32: %d", uint32(v)) }
func (v TU64) String() string { return Sprintf("U64: %d", uint64(v)) }
func (v TUI) String() string  { return Sprintf("UI: %d", uintptr(v)) }

#define nelem(x) (sizeof(x)/sizeof((x)[0]))

typedef uint32_t u32;

static u32 div(u32 x, u32 y, u32 *rp) {
	int n = 0;
	while((y>>(32-1)) != 1 && y < x) {
		y<<=1;
		n++;
	}
	u32 q = 0;
	for(;; n--, y>>=1, q<<=1) {
		if(x>=y) {
			x -= y;
			q |= 1;
		}
		if(n == 0)
			break;
	}
	if(rp)
		*rp = x;
	return q;
}

u32 tests[] = {
	0,
	1,
	2,
	3,
	4,
	5,
	6,
	7,

	}

	u8 = ia[9].(uint8)
	if u8 != 12 {
		println(5, u8)
		panic("fail")
	}
	u16 = ia[10].(uint16)
	if u16 != 799 {
		println(6, u16)
		panic("fail")
	}
	u32 = ia[11].(uint32)
	if u32 != 4455 {
		println(7, u32)
		panic("fail")
	}
	u64 = ia[12].(uint64)
	if u64 != 765432 {
		println(8, u64)
		panic("fail")
	}

		bw(b, "\n")
	}
}

func u32(i uint32) string {
	return strconv.FormatUint(uint64(i), 10)
}

func dumpInst(b *strings.Builder, i *Inst) {
	switch i.Op {
	case InstAlt:
		bw(b, "alt -> ", u32(i.Out), ", ", u32(i.Arg))
	case InstAltMatch:
		bw(b, "altmatch -> ", u32(i.Out), ", ", u32(i.Arg))
	case InstCapture:
		bw(b, "cap ", u32(i.Arg), " -> ", u32(i.Out))
	case InstEmptyWidth:

// license that can be found in the LICENSE file.

package main

const B32 = 1<<32 - 1
const C32 = (-1) & ((1 << 32) - 1)
const D32 = ^0

func main() {
	if B32 != 0xFFFFFFFF {
		println("1<<32 - 1 is", B32, "should be", 0xFFFFFFFF)
		panic("fail")
	}
	if C32 != 0xFFFFFFFF {
		println("(-1) & ((1<<32) - 1) is", C32, "should be", 0xFFFFFFFF)
		panic("fail")
	}
	if D32 != -1 {
		println("^0 is", D32, "should be", -1)

	c22  = c21 * c21
	c23  = c22 * c22
	c24  = c23 * c23
	c25  = c24 * c24
	c26  = c25 * c25
	c27  = c26 * c26
	c28  = c27 * c27
	c29  = c28 * c28
	c30  = c29 * c29
	c31  = c30 * c30
	c32  = c31 * c31
	c33  = c32 * c32
	c34  = c33 * c33
	c35  = c34 * c34
	c36  = c35 * c35
	c37  = c36 * c36
	c38  = c37 * c37
	c39  = c38 * c38
	c40  = c39 * c39
	c41  = c40 * c40
	c42  = c41 * c41
	c43  = c42 * c42