#14180: SatSolver.clauses
--------------------------------------+-------------------------------------
Reporter: malb | Owner: jason
Type: PLEASE CHANGE | Status: needs_review
Priority: major | Milestone: sage-5.8
Component: misc | Resolution:
Keywords: sat, cryptominisat | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Martin Albrecht | Merged in:
Dependencies: #14198 | Stopgaps:
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Comment (by ncohen):
HMmmmmmmmm... I've got some questions about your patch :
* You do not seem to accept as input a DIMACS file with `is_xor` clauses
with `clauses()`, while you WRITE such files with `render_dimacs()` ?...
* I do not get what this does... It's meant to store `is_xor` clauses but
I don't get it `^^;`
{{{
closing = lits[-1] if rhs else -lits[-1]
fh.write("x" + " ".join(map(str, lits[:-1])) + " %d 0\n"%closing)
}}}
* I do not get this either
{{{
+ def __getattr__(self, name):
+ """
+ EXAMPLE::
+
+ sage: from sage.sat.solvers.satsolver import SatSolver
+ sage: solver = SatSolver()
+ sage: solver.gens() # __getattr__ points this to clauses
+ Traceback (most recent call last):
+ ...
+ NotImplementedError
+ """
+ if name == "gens":
+ return self.clauses
+ else:
+ raise AttributeError("'%s' object has no attribute
'%s'"%(self.__class__.__name__,name))
+
+ def trait_names(self):
+ """
+ Allow alias to appear in tab completion.
+
+ EXAMPLE::
+
+ sage: from sage.sat.solvers.satsolver import SatSolver
+ sage: solver = SatSolver()
+ sage: solver.trait_names()
+ ['gens']
+ """
+ return ["gens"]
}}}
Why don't you just create a gens method ? Why would you need one by
the way, as it is an alias to `clauses` anyway ?
Have fuuuuuuuuuuuuuuuuuuuuuuuunnn !!
Nathann
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14180#comment:6>
Sage <http://www.sagemath.org>
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