Resurect EvalBeforeNestingBit to control nested_eval

2026-04-10 11:34:33 +08:00 · 2014-03-12 20:25:36 +01:00
parent 16d4c7a5e8
commit aceae8314b
3 changed files with 5 additions and 3 deletions
--- a/Eigen/src/Core/util/XprHelper.h
+++ b/Eigen/src/Core/util/XprHelper.h
@@ -432,7 +432,8 @@ template<typename T, int n, typename PlainObject = typename eval<T>::type> struc
  };

  typedef typename conditional<
-        int(CostEvalAsInteger) < int(CostNoEvalAsInteger),
+        ( (int(evaluator<T>::Flags) & EvalBeforeNestingBit) ||
+          (int(CostEvalAsInteger) < int(CostNoEvalAsInteger)) ),
        PlainObject,
        typename ref_selector<T>::type
  >::type type;