package main

import "fmt"

type T int

func (t T) String() string { return fmt.Sprintf("T%d", int(t)) }

const (
	A T = 1 << (1 << iota)
	B
	C
	D
	E
)

func main() {
	s := fmt.Sprintf("%v %v %v %v %v", A, B, C, D, E)
	if s != "T2 T4 T16 T256 T65536" {
		println("type info didn't propagate in const: got", s)
		panic("fail")
	}
	x := uint(5)
	y := float64(uint64(1)<<x)	// used to fail to compile

	f(Bool)             // ERROR "convert|wrong type|cannot|incompatible"
}

const ptr = nil // ERROR "const.*nil|not constant"
const _ = string([]byte(nil)) // ERROR "is not a? ?constant"
const _ = uintptr(unsafe.Pointer((*int)(nil))) // ERROR "is not a? ?constant"
const _ = unsafe.Pointer((*int)(nil)) // ERROR "cannot be nil|invalid constant type|is not a constant|not constant"

const StackGuardMultiplier = 1 + goos.IsAix + isRace

// DefaultPhysPageSize is the default physical page size.
const DefaultPhysPageSize = goarch.DefaultPhysPageSize

// PCQuantum is the minimal unit for a program counter (1 on x86, 4 on most other systems).
// The various PC tables record PC deltas pre-divided by PCQuantum.
const PCQuantum = goarch.PCQuantum

package main

import "os"

const (
	c0      = 0
	cm1     = -1
	chuge   = 1 << 100
	chuge_1 = chuge - 1
	c1      = chuge >> 100
	c3div2  = 3 / 2
	c1e3    = 1e3

	rsh1 = 1e100 >> 1000
	rsh2 = 1e302 >> 1000

	ctrue  = true
	cfalse = !ctrue

	// Issue #34563
	_ = string(int(123))
	_ = string(rune(456))
)

const (
	f0              = 0.0
	fm1             = -1.

package p

var b struct {
	a[10]int
}

var m map[string][20]int

var s [][30]int

func f() *[40]int
var c chan *[50]int
var z complex128

const (
	n1 = len(b.a)
	n2 = len(m[""])
	n3 = len(s[10])

	n4 = len(f())  // ERROR "is not a constant|is not constant"
	n5 = len(<-c) // ERROR "is not a constant|is not constant"

Emmanuel Odeke <******@****.***> 1460323946 -0700

	for {
		x := v_0
		s := v_1
		v.reset(OpInt64Make)
		v0 := b.NewValue0(v.Pos, OpRsh32x32, typ.UInt32)

		println("second: got", got, "want", ip)
		panic("fail")
	}

	// Test that non-interface types can be sent on a chan interface{}.
	const n = 100
	uc := make(chan interface{})
	go func() {
		for i := 0; i < n; i++ {
			select {
			case uc <- nil:
			case uc <- u32:
			case uc <- u64:
			case uc <- u128:
			}
		}
	}()

func main() {
	if runtime.GOOS == "js" || runtime.GOOS == "wasip1" || runtime.Compiler != "gc" {
		return
	}

	dir, err := ioutil.TempDir("", "const7_")
	if err != nil {
		log.Fatalf("creating temp dir: %v\n", err)
	}
	defer os.RemoveAll(dir)

	const bitLimit = 512
	const charLimit = 10000 // compiler-internal constant length limit
	testProg(dir, "x1", bitLimit, "")
	testProg(dir, "x2", bitLimit+1, "constant overflow")

			case Int:
				var s = uint(sizeof(typ)) * 8
				return int64(-1)<<(s-1) <= x && x <= int64(1)<<(s-1)-1
			case Int8:
				const s = 8
				return -1<<(s-1) <= x && x <= 1<<(s-1)-1
			case Int16:
				const s = 16
				return -1<<(s-1) <= x && x <= 1<<(s-1)-1
			case Int32:
				const s = 32
				return -1<<(s-1) <= x && x <= 1<<(s-1)-1
			case Int64, UntypedInt:
				return true
			case Uint, Uintptr: