//    IEEE      -10,+10   1,000,000     2.9e-16     6.1e-17

// Sqrt returns the square root of x.
// The result r is chosen so that real(r) ≥ 0 and imag(r) has the same sign as imag(x).
func Sqrt(x complex128) complex128 {
	if imag(x) == 0 {
		// Ensure that imag(r) has the same sign as imag(x) for imag(x) == signed zero.
		if real(x) == 0 {
			return complex(0, imag(x))
		}
		if real(x) < 0 {

func fComplex64(a complex64) complex64 { return a }

type TestComplex64Alias complex64

func fComplex64Alias(a TestComplex64Alias) TestComplex64Alias { return a }

func fComplex128(a complex128) complex128 { return a }

type TestComplex128Alias complex128

func fComplex128Alias(a TestComplex128Alias) TestComplex128Alias { return a }

func fInt16(a int16) int16 { return a }

type TestInt16Alias int16

func decComplex128Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
	slice, ok := v.Interface().([]complex128)
	if !ok {
		// It is kind complex128 but not type complex128. TODO: We can handle this unsafely.
		return false
	}
	for i := 0; i < length; i++ {
		if state.b.Len() == 0 {
			errorf("decoding complex128 array or slice: length exceeds input size (%d elements)", length)
		}
		if i >= len(slice) {

		"bool", "int", "rune",
		"*int", "uintptr",
		"float32", "float64",
		"chan struct{}",
		"map[string]struct{}",
		"func()", "func(string)error",

		// These types caused compilation failures
		"complex64", "complex128",
		"struct{}", "struct{n int}", "struct{e error}", "struct{m map[string]string}",
		"string",
		"[4]byte",
		"[]byte",
		"interface{}", "error",
	}
	for i, typ := range types {
		fmt.Printf(tpl, i, typ)
	}

// in expressions
var _ = T[int]{}

// in embedded types
type _ struct{ T[int] }

// interfaces
type _ interface {
	m()
	~int
}

type _ interface {
	~int | ~float | ~string
	~complex128
	underlying(underlying underlying) underlying
}

type _ interface {
	T
	T[int]
}

// tricky cases
func _(T[P], T[P1, P2])
func _(a [N]T)

type _ struct {
	T[P]
	T[P1, P2]
	f[N]

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package p

import "unsafe"

type E [1 << 30]complex128
var a [1 << 30]E
var _ = unsafe.Sizeof(a /* ERROR "too large" */ )

var s struct {
	_ [1 << 30]E
	x int
}
var _ = unsafe.Offsetof(s /* ERROR "too large" */ .x)

// Driver for complex division table defined in cmplxdivide1.go
// For details, see the comment at the top of cmplxdivide.c.

package main

import (
	"fmt"
	"math"
)

func calike(a, b complex128) bool {
	if imag(a) != imag(b) && !(math.IsNaN(imag(a)) && math.IsNaN(imag(b))) {
		return false
	}

	if real(a) != real(b) && !(math.IsNaN(real(a)) && math.IsNaN(real(b))) {
		return false
	}

	return true

		}

		if complex128(complex64(test.out)) == test.out {
			got, err := ParseComplex(test.in, 64)
			if !reflect.DeepEqual(err, test.err) {
				t.Fatalf("ParseComplex(%q, 64) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err)
			}
			got64 := complex64(got)
			if complex128(got64) != test.out {

	// predeclared types
	Bool
	Int
	Int8
	Int16
	Int32
	Int64
	Uint
	Uint8
	Uint16
	Uint32
	Uint64
	Uintptr
	Float32
	Float64
	Complex64
	Complex128
	String
	UnsafePointer

	// types for untyped values
	UntypedBool
	UntypedInt
	UntypedRune
	UntypedFloat
	UntypedComplex
	UntypedString
	UntypedNil

	// aliases
	Byte = Uint8

		staticC64 = complex64(x30) + 1 - x30
		staticC128 = complex128(x60) + 1 - x60
	)
	dynamicF32 := float32(x30)
	dynamicF32 += 1
	dynamicF32 -= x30

	dynamicF64 := float64(x60)
	dynamicF64 += 1
	dynamicF64 -= x60

	dynamicC64 := complex64(x30)
	dynamicC64 += 1
	dynamicC64 -= x30

	dynamicC128 := complex128(x60)
	dynamicC128 += 1
	dynamicC128 -= x60