// For example, the sample code starts with:
	//	p := int(a) + int(b) - int(c)
	//	pa := abs(p - int(a))
	// but the optimized form uses fewer arithmetic operations:
	//	pa := int(b) - int(c)
	//	pa = abs(pa)
	pc := int(c)
	pa := int(b) - pc
	pb := int(a) - pc
	pc = abs(pa + pb)
	pa = abs(pa)
	pb = abs(pb)
	if pa <= pb && pa <= pc {
		return a
	} else if pb <= pc {
		return b
	}
	return c
}

     */
    public Set<String> getRequiredActiveProjectSelectors() {
        return getProjectSelectors(pa -> !pa.optional && pa.active);
    }

    /**
     * @return Optional active project selectors, never {@code null}.
     */
    public Set<String> getOptionalActiveProjectSelectors() {
        return getProjectSelectors(pa -> pa.optional && pa.active);
    }

    /**
     * @return Required inactive project selectors, never {@code null}.

//
// /  op.Commit()
type PortAllocationOperation struct {
	pa              Interface
	allocated       []int
	releaseDeferred []int
	shouldRollback  bool
	dryRun          bool
}

// Creates a portAllocationOperation, tracking a set of allocations & releases
// If dryRun is specified, never actually allocate or release anything
func StartOperation(pa Interface, dryRun bool) *PortAllocationOperation {

     */
    public Set<String> getRequiredActiveProfileIds() {
        return getProfileIds(pa -> !pa.optional && pa.active);
    }

    /**
     * @return Optional active profile identifiers, never {@code null}.
     */
    public Set<String> getOptionalActiveProfileIds() {
        return getProfileIds(pa -> pa.optional && pa.active);
    }

    /**

package main

type pa []int

type p int

func (this *pa) func1() (v *p, c int) {
	for _ = range *this {
		c++
	}
	v = (*p)(&c)
	return
}

func (this *pa) func2() p {
	return (*p).func3(this.func1())
}

func (this *p) func3(f int) p {
	return *this
}

func (this *pa) func2dots() p {
	return (*p).func3(this.func1())
}

00:00:00","IssueTime":"2055","RPState":"CA","PlateExpiry":"201503","Make":"NISS","BodyStyle":"PA","Color":"BK","Location":"200 WORLD WAY","Route":"2R2","Agency":2,"ViolationCode":"8939","ViolationDescr":"WHITE CURB","Fine":58,"Latitude":6439997.9,"Longitude":1802686.4} {"Ticket":1104820732,"IssueData":"2015-12-26T00:00:00","IssueTime":"1515","RPState":"CA","PlateExpiry":"","Make":"ACUR","BodyStyle":"PA","Color":"WH","Location":"100 WORLD WAY","Route":"2F11","Agency":2,"ViolationCode":"000","Viol...

	_ = &a /* ERROR "cannot take address" */ [:10]

	pa := &a
	_ = pa[9]
	_ = pa[10 /* ERRORx `index .* out of bounds` */ ]
	_ = pa[1 /* ERROR "overflows" */ <<100]
	_ = pa[10:]
	_ = pa[:10]
	_ = pa[10:10]
	_ = pa[11 /* ERRORx `index .* out of bounds` */ :]
	_ = pa[: 11 /* ERRORx `index .* out of bounds` */ ]
	_ = pa[: 1 /* ERROR "overflows" */ <<100]
	_ = pa[:10:10]
	_ = pa[:11 /* ERRORx `index .* out of bounds` */ :10]

	s = s0
	s = s1 // ERROR "cannot use"
	s1 = s0
	s1 = s // ERROR "cannot use"

	pa0 = pa  // ERROR "cannot use|incompatible"
	pa0 = pa1 // ERROR "cannot use|incompatible"
	pa = pa0  // ERROR "cannot use|incompatible"
	pa = pa1  // ERROR "cannot use|incompatible"
	pa1 = pa0 // ERROR "cannot use|incompatible"
	pa1 = pa  // ERROR "cannot use|incompatible"

	pb0 = pb  // ERROR "cannot use|incompatible"

stderr 'compile: -c must be at least 1, got 0'

-- m/go.mod --
module example.com

go 1.16

-- m/main.go --
package main

func main() {
    var s = []int{1, 2, 3}
    var pa = (*[2]int)(s[1:])
    println(pa[1])

// It is a straight port of the sample code in the PNG spec, section 9.4.
func slowPaeth(a, b, c uint8) uint8 {
	p := int(a) + int(b) - int(c)
	pa := slowAbs(p - int(a))
	pb := slowAbs(p - int(b))
	pc := slowAbs(p - int(c))
	if pa <= pb && pa <= pc {
		return a
	} else if pb <= pc {
		return b
	}
	return c
}

// slowFilterPaeth is a slow but simple implementation of func filterPaeth.