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change to lib::BoolCheckable for the self-valididty check

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This commit is contained in:
Fischlurch 2010-01-08 03:59:30 +01:00
parent 836f533a2f
commit 92ad5d1994
1 changed files with 2 additions and 5 deletions
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7
src/proc/mobject/placement-ref.hpp
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@ -47,6 +47,7 @@
//#include "proc/mobject/session/locatingpin.hpp"
//#include "proc/asset/pipe.hpp"
#include "lib/error.hpp"
#include "lib/bool-checkable.hpp"
#include "proc/mobject/placement.hpp"
#include "proc/mobject/explicitplacement.hpp" /////////////TODO this is ugly! Why can't placement::resolve() return a reference??
#include "proc/mobject/session/session-service-fetch.hpp"
@ -72,6 +73,7 @@ namespace mobject {
*/
template<class MX =MObject>
class PlacementRef
: public lib::BoolCheckable<PlacementRef<MX> >
{
typedef Placement<MX> PlacementMX;
typedef Placement<MObject>::ID _ID;
@ -171,11 +173,6 @@ namespace mobject {
bool operator!= (PlacementRef<O> const& o) const { return id_ != o; }
typedef _Id PlacementRef::*__unspecified_bool_type; ////////TICKET #178 : implement by lib::BoolCheckable?
/** implicit conversion to "bool" */
operator __unspecified_bool_type() const { return isValid()? &PlacementRef::id_ : 0; } // never throws
bool operator! () const { return !isValid(); } // ditto