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authorDenis Vlasenko <vda.linux@googlemail.com>2009-04-02 20:17:49 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2009-04-02 20:17:49 +0000
commitb7aaae9052025426b669a0edeec1da5997fea8be (patch)
tree062eff7de09b9307a57260c47571888ed3f598b7 /shell/hush_test/hush-arith/arith2.sub
parent7a79afa3cab4d35f6c042a1038554948ebe9b2e1 (diff)
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hush: rename ->o_quote to ->o_escape
hush_test/hush-arith/*: new tests for arithmetic evaluation
Diffstat (limited to 'shell/hush_test/hush-arith/arith2.sub')
-rwxr-xr-xshell/hush_test/hush-arith/arith2.sub57
1 files changed, 57 insertions, 0 deletions
diff --git a/shell/hush_test/hush-arith/arith2.sub b/shell/hush_test/hush-arith/arith2.sub
new file mode 100755
index 000000000..f7e3c9235
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+++ b/shell/hush_test/hush-arith/arith2.sub
@@ -0,0 +1,57 @@
1# bash 3.2 apparently thinks that ++7 is 7 etc
2( echo $(( --7 )) )
3( echo $(( ++7 )) )
4( echo $(( -- 7 )) )
5( echo $(( ++ 7 )) )
6
7#ash# ((++array[0] ))
8#ash# echo 1 $array
9#ash# (( ++ array[0] ))
10#ash# echo 2 $array
11
12#ash# (( ++a ))
13#ash# echo 1 $a
14#ash# (( ++ a ))
15#ash# echo 2 $a
16
17#ash# (( --a ))
18#ash# echo 1 $a
19#ash# (( -- a ))
20#ash# echo 0 $a
21 a=0
22
23echo 5 $(( 4 + ++a ))
24echo 1 $a
25
26# ash doesn't handle it right...
27#ash# echo 6 $(( 4+++a ))
28#ash# echo 2 $a
29 a=2
30
31# ash doesn't handle it right...
32#ash# echo 3 $(( 4---a ))
33#ash# echo 1 $a
34 a=1
35
36echo 4 $(( 4 - -- a ))
37echo 0 $a
38
39#ash# (( -- ))
40# bash 3.2 apparently thinks that ---7 is -7
41#ash# echo $(( ---7 ))
42( echo $(( -- - 7 )) )
43
44#ash# (( ++ ))
45# bash 3.2: 7
46#ash# echo 7 $(( ++7 ))
47( echo $(( ++ + 7 )) )
48
49# bash 3.2: -7
50#ash# echo -7 $(( ++-7 ))
51# bash 3.2: -7
52#ash# echo -7 $(( ++ - 7 ))
53
54# bash 3.2: 7
55#ash# echo 7 $(( +--7 ))
56# bash 3.2: 7
57#ash# echo 7 $(( -- + 7 ))