Thread: [q-lang-users] Why is this an error

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q-lang-users

[q-lang-users] Why is this an error

From: Larry G. <lg...@ac...> - 2006-07-01 22:09:02

People:

Why does the following produce a syntax error?

==> 7+09
! Syntax error
 >>> 7+09
      ^

But this does not?

==> 7+0
7

It seems reasonable that 7 + 09 should produce 16, yes?

Larry Gregg

Re: [q-lang-users] Why is this an error

From: Tim H. <q...@st...> - 2006-07-01 23:09:10

Larry Gregg <lg...@ac...> writes:

> People:
> 
> Why does the following produce a syntax error?
> 
> ==> 7+09
> ! Syntax error
>  >>> 7+09
>       ^
[snip]

> It seems reasonable that 7 + 09 should produce 16, yes?

Seemingly not. Consider:

 | ==> 071
 | 57

Octal means numbers digits go up to 7, hence that syntax error ;)

~Tim
-- 
<http://spodzone.org.uk/>

Re: [q-lang-users] Why is this an error

From: Larry G. <lg...@ac...> - 2006-07-02 01:08:51

Tim Haynes wrote:
> Larry Gregg <lg...@ac...> writes:
>
>   
>> People:
>>
>> Why does the following produce a syntax error?
>>
>> ==> 7+09
>> ! Syntax error
>>  >>> 7+09
>>       ^
>>     
> [snip]
>
>   
>> It seems reasonable that 7 + 09 should produce 16, yes?
>>     
>
> Seemingly not. Consider:
>
>  | ==> 071
>  | 57
>
> Octal means numbers digits go up to 7, hence that syntax error ;)
>
> ~Tim
>   
Tim:

Thanks.  I see now why it errored out.

Larry