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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# testing behavior of command substitution as one of expansions performed by
# array subscripting; should behave the same directly as when done through
# a nameref
x[0]=42
zero=0
f() { typeset -n foo="$1"; declare -p foo; echo "$foo"; }
f 'x[$zero]'
x[$(echo 0)]=4
declare -p x
f 'x[$(echo 0)]'
unset -f f
f()
{
typeset -n foo="$1";
echo "x[i=0$(echo comsub >&2)]"
echo "${x[i=0$(echo comsub >&2)]}"
echo "${!1}"
echo "$foo"
}
f 'x[i=0$(echo comsub >&2)]'
unset -f f
unset x
# problems with unset and namerefs pointing to non-existent variables pointed
# out after bash-4.3 released
typeset -n foo=somevariable
foo=bar
unset foo # unsets somevariable
typeset -p foo somevariable
echo foo = $foo
typeset -A foo # should create array variable named somevariable
foo["jug"]="brown"
typeset -p foo somevariable
typeset -A foo='([jug]="brown" )'
typeset -p foo somevariable
unset foo
typeset -p foo somevariable
unset -n foo
typeset -p foo somevariable
unset bar
typeset -n foo=bar
typeset -p foo bar
unset foo
typeset -p foo bar
typeset -i foo
foo=4+4
typeset -p foo bar
echo "$foo"
unset foo
typeset -p foo bar
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