Option -00?

[JS]

Daniel Jacobowitz wrote:

> On Thu, Apr 14, 2005 at 10:35:47PM +0200, JS wrote:
>> I read that you could give gcc an -00 or -OO option. Is it double zero or
>> double O and what does the option do?
>> 
>> I searched the "man gcc" for both -00 and -OO but found nothing.
> 
> Search a little harder?
> 
>        -O0 Do not optimize.  This is the default.
> 
> That's a zero.
> 


Is it an O like in ONE followed by a zero?

When you say its default does it mean that it is turned on even if I don't
specify it to gcc?