( $used_options{ $1 } = 1 and "\${$1}" )

is a condition. expression and action could also be written as if (expression) { action } or action if expression and in that expression, your = should clearly be ==.


Enjoy, Have FUN! H.Merijn

In reply to Re: warning! -- Why? by Tux
in thread warning! -- Why? by jwkrahn

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