{"complex", `_ = complex(1, 0)`, `invalid type`}, // constant
	{"complex", `var re float32; _ = complex(re, 1.0)`, `func(float32, float32) complex64`},
	{"complex", `var im float64; _ = complex(1, im)`, `func(float64, float64) complex128`},
	{"complex", `type F32 float32; var re, im F32; _ = complex(re, im)`, `func(p.F32, p.F32) complex64`},

				return true
			}
		}
	}

	// "V and T are both integer or floating point types"
	if isIntegerOrFloat(Vu) && isIntegerOrFloat(Tu) {
		return true
	}

	// "V and T are both complex types"
	if isComplex(Vu) && isComplex(Tu) {
		return true
	}

	// "V is an integer or a slice of bytes or runes and T is a string type"
	if (isInteger(Vu) || isBytesOrRunes(Vu)) && isString(Tu) {
		return true
	}

				}
				f.NamedValues[*hiName] = append(f.NamedValues[*hiName], v.Args[0])
				f.NamedValues[*loName] = append(f.NamedValues[*loName], v.Args[1])
				toDelete = append(toDelete, namedVal{i, j})
			}
		case t.IsComplex():
			rName, iName := f.SplitComplex(name)
			newNames = maybeAppend2(f, newNames, rName, iName)
			for j, v := range f.NamedValues[*name] {
				if v.Op != OpComplexMake {
					continue
				}

// Issue 4813: use of constant floats as indices.

package main

var A [3]int
var S []int
var T string

const (
	i  = 1
	f  = 2.0
	f2 = 2.1
	c  = complex(2, 0)
	c2 = complex(2, 1)
)

var (
	vf = f
	vc = c
)

var (
	a1 = A[i]
	a2 = A[f]
	a3 = A[f2] // ERROR "truncated|must be integer"
	a4 = A[c]
	a5 = A[c2] // ERROR "truncated|must be integer"

		},
		"add only not nulls": {
			Original: `{}`,
			Current:  `{}`,
			Modified: `{"complex":{"nested":null,"nested2":"foo"}}`,

			ExpectedTwoWay:         `{"complex":{"nested":null,"nested2":"foo"}}`,
			ExpectedTwoWayResult:   `{"complex":{"nested2":"foo"}}`,
			ExpectedThreeWay:       `{"complex":{"nested":null,"nested2":"foo"}}`,
			ExpectedThreeWayResult: `{"complex":{"nested2":"foo"}}`,

		panic("unreachable")
	}
	a := s.Sizeof(T) // may be 0 or negative
	// spec: "For a variable x of any type: unsafe.Alignof(x) is at least 1."
	if a < 1 {
		return 1
	}
	// complex{64,128} are aligned like [2]float{32,64}.
	if isComplex(T) {
		a /= 2
	}
	if a > s.MaxAlign {
		return s.MaxAlign
	}
	return a
}

func IsSyncAtomicAlign64(T Type) bool {
	named := asNamed(T)
	if named == nil {

		if types.SimType[src.Kind()] == types.SimType[dst.Kind()] {
			return ir.OCONVNOP, ""
		}
		return ir.OCONV, ""
	}

	// 5. src and dst are both complex types.
	if src.IsComplex() && dst.IsComplex() {
		if types.SimType[src.Kind()] == types.SimType[dst.Kind()] {
			return ir.OCONVNOP, ""
		}
		return ir.OCONV, ""
	}

	// Special case for constant conversions: any numeric

	{"%.1f", complex(posInf, posInf), "(+Inf+Infi)"},
	{"% f", complex(posInf, posInf), "( Inf+Infi)"},
	{"% f", complex(negInf, negInf), "(-Inf-Infi)"},
	{"% f", complex(NaN, NaN), "( NaN+NaNi)"},
	{"%8e", complex(posInf, posInf), "(    +Inf    +Infi)"},
	{"%8x", complex(posInf, posInf), "(    +Inf    +Infi)"},
	{"% 8E", complex(posInf, posInf), "(     Inf    +Infi)"},
	{"% 8X", complex(posInf, posInf), "(     Inf    +Infi)"},

package main

import "unsafe"

func main() {
	var x *int
	_ = unsafe.Pointer(x) - unsafe.Pointer(x) // ERROR "(operator|operation) - not defined on unsafe.Pointer|expected integer, floating, or complex type"

type (
	Integer interface{ ~int|~int8|~int16|~int32|~int64 }
	Unsigned interface{ ~uint|~uint8|~uint16|~uint32|~uint64 }
	Floats interface{ ~float32|~float64 }
	Complex interface{ ~complex64|~complex128 }
	Number interface{ Integer|Unsigned|Floats|Complex }
	Ordered interface{ Integer|Unsigned|Floats|~string }

	_ interface{ Number | error /* ERROR "cannot use error in union" */ }