Don't use M_PI since it's only guaranteed to be defined in Eigen/Geometry

2026-04-10 11:34:33 +08:00 · 2015-04-08 13:59:18 -05:00
parent 83e5b7656b
commit 085aa8e601
2 changed files with 3 additions and 2 deletions
--- a/Eigen/src/Core/MathFunctions.h
+++ b/Eigen/src/Core/MathFunctions.h
@@ -421,7 +421,8 @@ struct round_retval
    EIGEN_DEVICE_FUNC
    static inline RealScalar run(const Scalar& x)
    {
-      return (x < 0.0) ? M_PI : 0.0; }
+      const double pi = std::acos(-1.0);
+      return (x < 0.0) ? pi : 0.0; }
  };

  template<typename Scalar>