package main

import (
	"fmt"
)

func Sum[T interface{ int | float64 }](vec []T) T {
	var sum T
	for _, elt := range vec {
		sum = sum + elt
	}
	return sum
}

func Abs(f float64) float64 {
	if f < 0.0 {
		return -f
	}
	return f
}

func main() {
	vec1 := []int{3, 4}
	vec2 := []float64{5.8, 9.6}
	got := Sum[int](vec1)
	want := vec1[0] + vec1[1]
	if got != want {

package bug109

func f(a float64) float64 {
	e := 1.0
	e = e * a
	return e
}

/*
6g bugs/bug109.go
bugs/bug109.go:5: illegal types for operand: MUL
	(<float64>FLOAT64)
	(<float32>FLOAT32)
bugs/bug109.go:5: illegal types for operand: AS
	(<float64>FLOAT64)
bugs/bug109.go:6: illegal types for operand: RETURN
	(<float32>FLOAT32)
	(<float64>FLOAT64)

}

func (tm testMetrics) sameZonePercent() float64 {
	return (float64(tm.requestsSameZone) / float64(tm.totalRequests())) * 100
}

func (tm testMetrics) sameRegionPercent() float64 {
	return (float64(tm.requestsSameRegion) / float64(tm.totalRequests())) * 100
}

func (tm testMetrics) otherRegionPercent() float64 {
	return (float64(tm.requestsOtherRegion) / float64(tm.totalRequests())) * 100
}

//
// Special cases are:
//
//	Frexp(±0) = ±0, 0
//	Frexp(±Inf) = ±Inf, 0
//	Frexp(NaN) = NaN, 0
func Frexp(f float64) (frac float64, exp int) {
	if haveArchFrexp {
		return archFrexp(f)
	}
	return frexp(f)
}

func frexp(f float64) (frac float64, exp int) {
	// special cases
	switch {
	case f == 0:
		return f, 0 // correctly return -0
	case IsInf(f, 0) || IsNaN(f):
		return f, 0
	}

//
// Special cases are:
//
//	abs(±Inf) = +Inf
//	abs(NaN) = NaN
func abs(x float64) float64 {
	const sign = 1 << 63
	return float64frombits(float64bits(x) &^ sign)
}

// copysign returns a value with the magnitude
// of x and the sign of y.
func copysign(x, y float64) float64 {
	const sign = 1 << 63
	return float64frombits(float64bits(x)&^sign | float64bits(y)&sign)
}

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

const (
	f0              = 0.0
	fm1             = -1.
	fhuge   float64 = 1 << 100
	fhuge_1 float64 = chuge - 1
	f1      float64 = chuge >> 100
	f3div2          = 3. / 2.
	f1e3    float64 = 1e3
)

func assert(t bool, s string) {
	if !t {
		panic(s)
	}
}

func ints() {
	assert(c0 == 0, "c0")
	assert(c1 == 1, "c1")

	b1 := &a.List[byte]{b2, byte(2)}
	if got, want := b1.Largest(), byte(3); got != want {
		panic(fmt.Sprintf("got %d, want %d", got, want))
	}

	f3 := &a.List[float64]{nil, 13.5}
	f2 := &a.List[float64]{f3, 1.2}
	f1 := &a.List[float64]{f2, 4.5}
	if got, want := f1.Largest(), 13.5; got != want {
		panic(fmt.Sprintf("got %f, want %f", got, want))
	}

	s3 := &a.List[string]{nil, "dd"}
	s2 := &a.List[string]{s3, "aa"}

}

// Cos returns the cosine of the radian argument x.
//
// Special cases are:
//
//	Cos(±Inf) = NaN
//	Cos(NaN) = NaN
func Cos(x float64) float64 {
	if haveArchCos {
		return archCos(x)
	}
	return cos(x)
}

func cos(x float64) float64 {
	const (
		PI4A = 7.85398125648498535156e-1  // 0x3fe921fb40000000, Pi/4 split into three parts
		PI4B = 3.77489470793079817668e-8  // 0x3e64442d00000000,

	ErrorTest{"float64 0/0", func() { use(f / g) }, ""},
	ErrorTest{"float32 0/0", func() { use(f32 / g32) }, ""},
	ErrorTest{"float64 0/0", func() { use(f64 / g64) }, ""},

	ErrorTest{"float64 1/0", func() { use(h / g) }, ""},
	ErrorTest{"float32 1/0", func() { use(h32 / g32) }, ""},
	ErrorTest{"float64 1/0", func() { use(h64 / g64) }, ""},
	ErrorTest{"float64 inf/0", func() { use(inf / g64) }, ""},

		// i.e. x = c_i*pfc -f_i
		totalBytesToRebal := float64(ps.InitCapacity)*meta.PercentFreeGoal - float64(ps.InitFreeSpace)
		elapsed := time.Since(ps.Info.StartTime)
		eta := time.Duration(totalBytesToRebal * float64(elapsed) / float64(ps.Bytes))
		if !ps.Info.EndTime.IsZero() {
			stopTime = ps.Info.EndTime
		}