5L. void expressions (VOID)
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VOID

syntax:		VOID <exp>

[obsolete: only for backwards compatability]
calculates the expression without the result going anywhere. Only useful
for a clearer syntax, as expressions may be used as statements without
VOID in E anyway. This may cause subtle bugs though, as "a:=1" assigns
a the value 1, but "a=1" as a statement will do nothing. E will give you
a warning if this happens.