1// errorcheck
2
3// Copyright 2017 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Ensure that typed non-integer, negative and too large
8// values are not accepted as size argument in make for
9// channels.
10
11package main
12
13type T chan byte
14
15var sink T
16
17func main() {
18	sink = make(T, -1)            // ERROR "negative buffer argument in make.*|must not be negative"
19	sink = make(T, uint64(1<<63)) // ERROR "buffer argument too large in make.*|overflows int"
20
21	sink = make(T, 0.5) // ERROR "constant 0.5 truncated to integer|truncated to int"
22	sink = make(T, 1.0)
23	sink = make(T, float32(1.0)) // ERROR "non-integer buffer argument in make.*|must be integer"
24	sink = make(T, float64(1.0)) // ERROR "non-integer buffer argument in make.*|must be integer"
25	sink = make(T, 1+0i)
26	sink = make(T, complex64(1+0i))  // ERROR "non-integer buffer argument in make.*|must be integer"
27	sink = make(T, complex128(1+0i)) // ERROR "non-integer buffer argument in make.*|must be integer"
28}
29