Goby3  3.1.5a
2024.05.23
constants.h
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1 // Copyright 2012-2021:
2 // GobySoft, LLC (2013-)
3 // Massachusetts Institute of Technology (2007-2014)
4 // Community contributors (see AUTHORS file)
5 // File authors:
6 // Toby Schneider <toby@gobysoft.org>
7 //
8 //
9 // This file is part of the Goby Underwater Autonomy Project Libraries
10 // ("The Goby Libraries").
11 //
12 // The Goby Libraries are free software: you can redistribute them and/or modify
13 // them under the terms of the GNU Lesser General Public License as published by
14 // the Free Software Foundation, either version 2.1 of the License, or
15 // (at your option) any later version.
16 //
17 // The Goby Libraries are distributed in the hope that they will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 // GNU Lesser General Public License for more details.
21 //
22 // You should have received a copy of the GNU Lesser General Public License
23 // along with Goby. If not, see <http://www.gnu.org/licenses/>.
24 
25 #ifndef GOBY_UTIL_CONSTANTS_H
26 #define GOBY_UTIL_CONSTANTS_H
27 
28 #include <limits>
29 
30 namespace goby
31 {
32 namespace util
33 {
34 template <class T> constexpr T pi = T(3.1415926535897932385L);
35 template <class T> constexpr T e = T(2.7182818284590452354L);
36 
37 template <class T> constexpr T NaN{std::numeric_limits<T>::quiet_NaN()};
38 
39 } // namespace util
40 } // namespace goby
41 
42 #endif
goby
The global namespace for the Goby project.
Definition: acomms_constants.h:33
goby::util::e
constexpr T e
Definition: constants.h:35
goby::util::NaN
constexpr T NaN
Definition: constants.h:37
goby::util::pi
constexpr T pi
Definition: constants.h:34