Subject: [boost] [Fit] pipable order of the arguments
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2015-10-05 20:52:48
Hi,
I would like to know what other think about the order of the pipe (See
this issue https://github.com/pfultz2/Fit/issues/5).
What would be the expected meaning of
auto r1 =1 | pipable(f)(2);
f(1,2) or f(2,1)?
What would be the expected meaning of
auto f2 = partial(f)(2);
auto r1 =1 | pipable(f2);
f(1,2) or f(2,1)?
As the operator| has left-to-right associativity, we can not do
auto x = 1 | 2 | pipable(f);
We would need a way to pack the parameters
auto x = forward_as_tuple(1, 2) | pipable(f);
but this wouldn't compile as f has two parameters.
or use parenthesis
auto x = 1 | (2 | pipable(f));
and the result will be f(2, 1).
Any ideas?
Best,
Vicente
Vicente