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authorDenis Vlasenko2009-04-02 20:17:49 +0000
committerDenis Vlasenko2009-04-02 20:17:49 +0000
commitb7aaae9052025426b669a0edeec1da5997fea8be (patch)
tree062eff7de09b9307a57260c47571888ed3f598b7 /shell/hush_test/hush-arith/arith2.sub
parent7a79afa3cab4d35f6c042a1038554948ebe9b2e1 (diff)
downloadbusybox-b7aaae9052025426b669a0edeec1da5997fea8be.zip
busybox-b7aaae9052025426b669a0edeec1da5997fea8be.tar.gz
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 0000000..f7e3c92
--- /dev/null
+++ b/shell/hush_test/hush-arith/arith2.sub
@@ -0,0 +1,57 @@
+# bash 3.2 apparently thinks that ++7 is 7 etc
+( echo $(( --7 )) )
+( echo $(( ++7 )) )
+( echo $(( -- 7 )) )
+( echo $(( ++ 7 )) )
+
+#ash# ((++array[0] ))
+#ash# echo 1 $array
+#ash# (( ++ array[0] ))
+#ash# echo 2 $array
+
+#ash# (( ++a ))
+#ash# echo 1 $a
+#ash# (( ++ a ))
+#ash# echo 2 $a
+
+#ash# (( --a ))
+#ash# echo 1 $a
+#ash# (( -- a ))
+#ash# echo 0 $a
+ a=0
+
+echo 5 $(( 4 + ++a ))
+echo 1 $a
+
+# ash doesn't handle it right...
+#ash# echo 6 $(( 4+++a ))
+#ash# echo 2 $a
+ a=2
+
+# ash doesn't handle it right...
+#ash# echo 3 $(( 4---a ))
+#ash# echo 1 $a
+ a=1
+
+echo 4 $(( 4 - -- a ))
+echo 0 $a
+
+#ash# (( -- ))
+# bash 3.2 apparently thinks that ---7 is -7
+#ash# echo $(( ---7 ))
+( echo $(( -- - 7 )) )
+
+#ash# (( ++ ))
+# bash 3.2: 7
+#ash# echo 7 $(( ++7 ))
+( echo $(( ++ + 7 )) )
+
+# bash 3.2: -7
+#ash# echo -7 $(( ++-7 ))
+# bash 3.2: -7
+#ash# echo -7 $(( ++ - 7 ))
+
+# bash 3.2: 7
+#ash# echo 7 $(( +--7 ))
+# bash 3.2: 7
+#ash# echo 7 $(( -- + 7 ))