mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-23 13:57:58 +02:00
Chet Ramey
66 lines
1.5 KiB
Plaintext
66 lines
1.5 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# make sure all internal backslash quoting for array subscripts in arithmetic
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# contexts is removed appropriately before the expression is evaluated
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a=(0 1 2)
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b=(0 1 2)
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x=0
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((i=$x,a[b[i]]))
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let "i=$x,a[b[i]]"
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echo $((i=$x,a[b[i]]))
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for (( i=$x,a[b[i]]; i != 0; i--)); do echo a; done
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yy[i=$x,a[b[i]]]=10
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declare -p yy
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unset yy
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declare -i yy
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yy=i=$x,a[b[i]]
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unset yy
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[[ i=$x,a[b[i]] -gt 0 ]]
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echo ${var:i=$x,a[b[i]]:4}
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unset i a b
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xxxx=4
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foo='$(echo xxxx)'
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# errors
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echo $(( $foo ))
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echo $(( b[~foo/$xxxx] )) # still attempts tilde expansion
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echo $(( b[~foo * $xxxx] ))
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# but associative arrays work, not arithmetic expressions
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typeset -A b
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xxxx=4
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foo='$(echo comsub)'
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echo $(( b[~foo * $xxxx] ))
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# original report
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x[3]=10 i=3 a[5]=42 p=15
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# comparison throws error
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(( a[p - x[i]] > 10)) && echo Y
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# errors
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foo=1
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echo $(( 'foo' ))
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