1// errorcheck
2
3// Copyright 2013 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// Issue 4813: use of constant floats as indices.
8
9package main
10
11var A [3]int
12var S []int
13var T string
14
15const (
16	i  = 1
17	f  = 2.0
18	f2 = 2.1
19	c  = complex(2, 0)
20	c2 = complex(2, 1)
21)
22
23var (
24	vf = f
25	vc = c
26)
27
28var (
29	a1 = A[i]
30	a2 = A[f]
31	a3 = A[f2] // ERROR "truncated|must be integer"
32	a4 = A[c]
33	a5 = A[c2] // ERROR "truncated|must be integer"
34	a6 = A[vf] // ERROR "non-integer|must be integer"
35	a7 = A[vc] // ERROR "non-integer|must be integer"
36
37	s1 = S[i]
38	s2 = S[f]
39	s3 = S[f2] // ERROR "truncated|must be integer"
40	s4 = S[c]
41	s5 = S[c2] // ERROR "truncated|must be integer"
42	s6 = S[vf] // ERROR "non-integer|must be integer"
43	s7 = S[vc] // ERROR "non-integer|must be integer"
44
45	t1 = T[i]
46	t2 = T[f]
47	t3 = T[f2] // ERROR "truncated|must be integer"
48	t4 = T[c]
49	t5 = T[c2] // ERROR "truncated|must be integer"
50	t6 = T[vf] // ERROR "non-integer|must be integer"
51	t7 = T[vc] // ERROR "non-integer|must be integer"
52)
53