Chris McDonald said:

<snip>
>
> The question was actually about *starting* with a digit,
> which doesn't necessarily imply consisting *only* of digits.

Yes, I know, but I figured (correctly, as it turns out) that using an
all-digit example would bring the point home to the OP very quickly.

> But what about: long int 42L = 6;

0X0 also springs to mind.

Forgive me - this is supposed to be a non-commercial channel.

0x20.

There - that's better.

--
Richard Heathfield <http://www.cpax.org.uk>
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"Usenet is a strange place" - dmr 29 July 1999