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// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test the 'for range' construct ranging over integers.

package main

func testint1() {
	bad := false
	j := 0
	for i := range int(4) {
		if i != j {
			println("range var", i, "want", j)
			bad = true
		}
		j++
	}
	if j != 4 {
		println("wrong count ranging over 4:", j)
		bad = true
	}

//gofmt -s

// Test cases for range simplification.
package p

func _() {
	for a, b = range x {
	}
	for a = range x {
	}
	for _, b = range x {
	}
	for range x {
	}

	for a = range x {
	}
	for range x {
	}

	for a, b := range x {
	}
	for a := range x {
	}
	for _, b := range x {
	}

	for a := range x {
	}

}

func testfunc0() {
	j := 0
	for range yield4x {
		j++
	}
	if j != 4 {
		println("wrong count ranging over yield4x:", j)
		panic("testfunc0")
	}

	j = 0
	for _ = range yield4 {
		j++
	}
	if j != 4 {
		println("wrong count ranging over yield4:", j)
		panic("testfunc0")
	}
}

func testfunc1() {
	bad := false
	j := 1
	for i := range yield4 {
		if i != j {