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// run
// Copyright 2014 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.
// Test order of calls to builtin functions.
// Discovered during CL 144530045 review.
package main
func main() {
// append
{
x := make([]int, 0)
f := func() int { x = make([]int, 2); return 2 }
a, b, c := append(x, 1), f(), append(x, 1)
if len(a) != 1 || len(c) != 3 {
bug()
println("append call not ordered:", len(a), b, len(c))
}
}
// cap
{
x := make([]int, 1)
f := func() int { x = make([]int, 3); return 2 }
a, b, c := cap(x), f(), cap(x)
if a != 1 || c != 3 {
bug()
println("cap call not ordered:", a, b, c)
}
}
// complex
{
x := 1.0
f := func() int { x = 3; return 2 }
a, b, c := complex(x, 0), f(), complex(x, 0)
if real(a) != 1 || real(c) != 3 {
bug()
println("complex call not ordered:", a, b, c)
}
}
// copy
{
tmp := make([]int, 100)
x := make([]int, 1)
f := func() int { x = make([]int, 3); return 2 }
a, b, c := copy(tmp, x), f(), copy(tmp, x)
if a != 1 || c != 3 {
bug()
println("copy call not ordered:", a, b, c)
}
}
// imag
{
x := 1i
f := func() int { x = 3i; return 2 }
a, b, c := imag(x), f(), imag(x)
if a != 1 || c != 3 {
bug()
println("imag call not ordered:", a, b, c)
}
}
// len
{
x := make([]int, 1)
f := func() int { x = make([]int, 3); return 2 }
a, b, c := len(x), f(), len(x)
if a != 1 || c != 3 {
bug()
println("len call not ordered:", a, b, c)
}
}
// make
{
x := 1
f := func() int { x = 3; return 2 }
a, b, c := make([]int, x), f(), make([]int, x)
if len(a) != 1 || len(c) != 3 {
bug()
println("make call not ordered:", len(a), b, len(c))
}
}
// real
{
x := 1 + 0i
f := func() int { x = 3; return 2 }
a, b, c := real(x), f(), real(x)
if a != 1 || c != 3 {
bug()
println("real call not ordered:", a, b, c)
}
}
}
var bugged = false
func bug() {
if !bugged {
println("BUG")
bugged = true
}
}