File: builtins4.sub

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declare -a c
declare -p c

declare -A d
declare -p d
unset c d

declare -a c
c=4
declare -p c
unset c

declare -A c
c=4
declare -p c
unset c

declare -a c
c=(1 2 3)
declare -p c
unset c

declare -A c
c=([one]=1 [two]=2 [three]=3)
declare -p c
unset c

declare -a c
read -a c < <(echo 1 2 3)
declare -p c
unset c

declare -a c
mapfile -t c < <(echo 1$'\n'2$'\n'3)
declare -p c
unset c

unset foo
declare -A foo
echo ${foo-unset}

unset foo
declare -a foo
echo ${foo-unset}