Acts/Vertexing/VertexingError.hpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #pragma once
0010
0011 #include <system_error>
0012 #include <type_traits>
0013
0014 namespace Acts {
0015
0016 /// Error codes for vertexing operations
0017 enum class VertexingError {
0018   // ensure all values are non-zero
0019   NumericFailure = 1,
0020   EmptyInput,
0021   SeedingError,
0022   NotConverged,
0023   ElementNotFound,
0024   NoCovariance,
0025   SingularMatrix,
0026   NonPositiveVariance,
0027   MatrixNotPositiveDefinite,
0028   InvalidInput,
0029   CouldNotRemoveTrack,
0030 };
0031
0032 /// Create error code from VertexingError
0033 /// @param e The error code enum value
0034 /// @return Standard error code
0035 std::error_code make_error_code(Acts::VertexingError e);
0036
0037 }  // namespace Acts
0038
0039 namespace std {
0040 // register with STL
0041 template <>
0042 struct is_error_code_enum<Acts::VertexingError> : std::true_type {};
0043 }  // namespace std