message: ENH: Use M_PI in mint_curvilinear_mesh.cpp.
diff: @@ -32,9 +32,8 @@ namespace mint = axom::mint;
  namespace utilities = axom::utilities;
  using IndexType = mint::IndexType;
  -constexpr double PI = 3.14159265358979323846264338327950288419716939937510582;
  constexpr double R = 2.5;
  -constexpr double M = ( 2*PI ) / 50.0;
  +constexpr double M = (2* M_PI) / 50.0;
  /*!
  * \file
  *
  