Reverse of $$

[Bob Stearns]

$$ allows on to put a variable name in another variable and use it. I
would like a function, usable only in UDFs, that would return the actual
variable name associated with a function argument. This is,
approximately, the inverse of $$. One can achieve this by requiring the
user to to send all arguments as strings and using $$ throughout, but
that puts an undue burden on the function user.

[Oli Filth]

Re: Reverse of $$

Bob Stearns wrote:[color=blue]
> $$ allows on to put a variable name in another variable and use it. I
> would like a function, usable only in UDFs, that would return the actual
> variable name associated with a function argument. This is,
> approximately, the inverse of $$.[/color]

Not possible. Think about it - what if the arguments aren't named
variables, e.g.:

foo(6, 6*$val, getNumber());

--
Oli

[Chung Leong]

Re: Reverse of $$


Bob Stearns wrote:[color=blue]
> $$ allows on to put a variable name in another variable and use it. I
> would like a function, usable only in UDFs, that would return the actual
> variable name associated with a function argument. This is,
> approximately, the inverse of $$. One can achieve this by requiring the
> user to to send all arguments as strings and using $$ throughout, but
> that puts an undue burden on the function user.[/color]

But how do you refer to the variable when you don't know its name?

[Oli Filth]

Re: Reverse of $$

Bob Stearns wrote:[color=blue]
> $$ allows on to put a variable name in another variable and use it. I
> would like a function, usable only in UDFs, that would return the actual
> variable name associated with a function argument. This is,
> approximately, the inverse of $$.[/color]

Not possible. Think about it - what if the arguments aren't named
variables, e.g.:

foo(6, 6*$val, getNumber());

--
Oli