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authorRon Yorston <rmy@pobox.com>2015-05-18 09:56:16 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2015-05-18 09:56:16 +0200
commitad88bdee0c382b9f1cbbb2d76cc739afb2790a60 (patch)
tree7b2975b0d5ab3465436bb9db7d4f3cf5a6732d8d /shell/msh_test
parent7e4ed267b645090fb576e1c876a88a9c73faabe9 (diff)
downloadbusybox-ad88bdee0c382b9f1cbbb2d76cc739afb2790a60.tar.gz
ash: remove arithmetic expansion collapsing at parse time
Collapsing arithmetic expansion is incorrect when the inner arithmetic expansion is a part of a parameter expansion. Test case: unset a echo $((3 + ${a:=$((4 + 5))})) echo $a Old result: 12 (4 + 5) New result: 12 9 Based on commit bb777a6 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta readtoken1 3180 3163 -17 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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