var _ complex128 = complex /* ERRORx `cannot use .* in variable declaration` */ (f32, f32)
	var _ complex128 = complex(f64, f64)

	// untyped constants
	const _ int = complex(1, 0)
	const _ float32 = complex(1, 0)
	const _ complex64 = complex(1, 0)
	const _ complex128 = complex(1, 0)
	const _ = complex(0i, 0i)
	const _ = complex(0i, 0)

	}
	C := complex(Ar, Ai)

	fmt.Println("literal", 25.3+55i)
	fmt.Println("go/constant", c)
	fmt.Println("complex128", C)

	// Output:
	//
	// Could not represent real part 25.3 exactly as float64
	// literal (25.3+55i)
	// go/constant (25.3 + 55i)
	// complex128 (25.299999999999997+55i)
}

func ExampleBinaryOp() {
	// 11 / 0.5
	a := constant.MakeUint64(11)
	b := constant.MakeFloat64(0.5)

			return nil, x
		}
	}
	return err, nil
}

// ParseComplex converts the string s to a complex number
// with the precision specified by bitSize: 64 for complex64, or 128 for complex128.
// When bitSize=64, the result still has type complex128, but it will be
// convertible to complex64 without changing its value.
//
// The number represented by s must be of the form N, Ni, or N±Ni, where N stands

// Copyright 2020 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 main

type MyBool bool
type MyComplex128 complex128
type MyComplex64 complex64
type MyFloat32 float32
type MyFloat64 float64
type MyInt int
type MyInt8 int8
type MyInt16 int16
type MyInt32 int32
type MyInt64 int64
type MyString string
type MyUint uint

func int64tofloat32(int64) float32
func uint64tofloat64(uint64) float64
func uint64tofloat32(uint64) float32
func uint32tofloat64(uint32) float64

func complex128div(num complex128, den complex128) (quo complex128)

func getcallerpc() uintptr
func getcallersp() uintptr

// race detection
func racefuncenter(uintptr)
func racefuncexit()
func raceread(uintptr)
func racewrite(uintptr)

	case abi.Float64:
		print(typestring, "(", *(*float64)(eface.data), ")")
	case abi.Complex64:
		print(typestring, *(*complex64)(eface.data))
	case abi.Complex128:
		print(typestring, *(*complex128)(eface.data))
	default:
		print("(", typestring, ") ", eface.data)
	}
}

// printindented prints s, replacing "\n" with "\n\t".
func printindented(s string) {
	for {

	Float32:       {Float32, IsFloat, "float32"},
	Float64:       {Float64, IsFloat, "float64"},
	Complex64:     {Complex64, IsComplex, "complex64"},
	Complex128:    {Complex128, IsComplex, "complex128"},
	String:        {String, IsString, "string"},
	UnsafePointer: {UnsafePointer, 0, "Pointer"},

	UntypedBool:    {UntypedBool, IsBoolean | IsUntyped, "untyped bool"},

	Float32:       {Float32, IsFloat, "float32"},
	Float64:       {Float64, IsFloat, "float64"},
	Complex64:     {Complex64, IsComplex, "complex64"},
	Complex128:    {Complex128, IsComplex, "complex128"},
	String:        {String, IsString, "string"},
	UnsafePointer: {UnsafePointer, 0, "Pointer"},

	UntypedBool:    {UntypedBool, IsBoolean | IsUntyped, "untyped bool"},

INSTANTIATE_GRAD_ERR_TYPE(complex64, float, float);
INSTANTIATE_GRAD_ERR_TYPE(float, complex64, float);
INSTANTIATE_GRAD_ERR_TYPE(complex64, complex64, float);
INSTANTIATE_GRAD_ERR_TYPE(complex128, complex128, double);

		{`package e5; const _ = complex64(-1e-200)`, `complex64(-1e-200)`, `complex64`, `(0 + 0i)`},
		{`package e6; const _ = complex128( 1e-2000)`, `complex128(1e-2000)`, `complex128`, `(0 + 0i)`},
		{`package e7; const _ = complex128(-1e-2000)`, `complex128(-1e-2000)`, `complex128`, `(0 + 0i)`},

		{`package f0 ; var _ float32 =  1e-200`, `1e-200`, `float32`, `0`},