1	#!/bin/bash
2	#
3	# Var refs are done with ${!a} and local/declare -n.
4	#
5	# http://stackoverflow.com/questions/16461656/bash-how-to-pass-array-as-an-argument-to-a-function
6
7	### pass array by reference
8	show_value() {
9	local -n array=$1
10	local idx=$2
11	echo "${array[$idx]}"
12	}
13	shadock=(ga bu zo meu)
14	show_value shadock 2
15	# stdout: zo
16
17
18	### pass assoc array by reference
19	show_value() {
20	local -n array=$1
21	local idx=$2
22	echo "${array[$idx]}"
23	}
24	days=([monday]=eggs [tuesday]=bread [sunday]=jam)
25	show_value days sunday
26	# stdout: jam
27
28	### pass local array by reference, relying on DYNAMIC SCOPING
29	show_value() {
30	local -n array=$1
31	local idx=$2
32	echo "${array[$idx]}"
33	}
34	caller() {
35	local shadock=(ga bu zo meu)
36	show_value shadock 2
37	}
38	caller
39	# stdout: zo
40	# mksh appears not to hav elocal arrays!
41	# BUG mksh stdout-json: ""
42	# BUG mksh status: 1