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34892 (slightly tweaked): math evaluation fix

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An empty expression resulting from substitution includes a
Nularg, which needs handling the same as an empty string.
This commit is contained in:
Peter Stephenson 2015-04-15 10:20:06 +01:00
parent a2c579050f
commit 2ef4b38461
3 changed files with 9 additions and 3 deletions
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5
Test/C01arith.ztst
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@ -383,4 +383,7 @@
print ${$(( $1 * 100 ))%%.[0-9]#})
0:Arithmetic substitution nested in parameter substitution
>3246
print $((`:`))
0:Null string in arithmetic evaluation after command substitution
>0