Andreas Ulbrich writes:
> In the documentation I can't find, that / is not possible as an unary
> operator.
> Are there any restrictions.
Yeah, if you look in the bison grammar you'll find out that the operators
with special precedence are hard-wired as to which syntaxes are allowed:
+ -
On 18.09.2013 02:17, David Johnston wrote:
Andreas Ulbrich wrote
create operator ^- (leftarg = float, procedure = reciproce);
works too, but
create operator / (leftarg = float, procedure = reciproce);
not.
Do you mean the "^" operator or the "^-" operator? Rowan claims that "^"
does not in fac
Andreas Ulbrich wrote
> create operator ^- (leftarg = float, procedure = reciproce);
> works too, but
> create operator / (leftarg = float, procedure = reciproce);
> not.
Do you mean the "^" operator or the "^-" operator? Rowan claims that "^"
does not in fact work here...
Rowan Collins wro
On 15/09/2013 19:32, Andreas Ulbrich wrote:
Salvete!
I have the following problem.
I'd like to define the operator symbol / as a left unary operator for
reciprocal value of a number.
I did this with a C-function and all the stuff around, but it does not
work.
Hiere is an extract and simplified
Salvete!
I have the following problem.
I'd like to define the operator symbol / as a left unary operator for
reciprocal value of a number.
I did this with a C-function and all the stuff around, but it does not work.
Hiere is an extract and simplified example with the same error message
as in m
"woger151" <[EMAIL PROTECTED]> writes:
> Why wouldn't <~~(item_1) + <~~(item_2) be parsed as (<~~(item_1)) +
> (<~~(item_2))?
Because it's parsed as
<~~ ( (item_1) + ( <~~ (item_2) ) )
"+" binds more tightly than any non-built-in operator, per the
precedence chart in the manual:
http://ww
I defined a function, count_nonnull, to return 1 if not null, 0 otherwise.
Then I defined a corresponding unary operator <~~. I wanted it for
expressions like <~~ item_1 + <~~ item_2. But because precedence of
user-defined ops is pretty low, I had to rewrite this as <~~(item_1) +
<~~(item_2), w
