mxlib
c++ tools for analyzing astronomical data and other tasks by Jared R. Males. [git repo]
environment.hpp
Go to the documentation of this file.
1 /** \file environment.hpp
2  * \author Jared R. Males
3  * \brief Utilities for working with the environment
4  * \ingroup utils_files
5  */
6 
7 //***********************************************************************//
8 // Copyright 2015-2020 Jared R. Males (jaredmales@gmail.com)
9 //
10 // This file is part of mxlib.
11 //
12 // mxlib is free software: you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation, either version 3 of the License, or
15 // (at your option) any later version.
16 //
17 // mxlib is distributed in the hope that it 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 General Public License for more details.
21 //
22 // You should have received a copy of the GNU General Public License
23 // along with mxlib. If not, see <http://www.gnu.org/licenses/>.
24 //***********************************************************************//
25 
26 #ifndef environment_hpp
27 #define environment_hpp
28 
29 
30 #include <locale>
31 #include <string>
32 
33 namespace mx
34 {
35 namespace sys
36 {
37 
38 /// Return the value of an environment variable
39 /** Call the standard getenv function, but handles the null pointer as an empty string.
40  *
41  * \returns the value of the environment varialbe, or empty string if it doesn't exist
42  *
43  * \ingroup system
44  */
45 std::string getEnv(const std::string & estr /**< [in] is the name of the environment variable to query */);
46 
47 }
48 }
49 
50 #endif //environment_hpp
std::string getEnv(const std::string &estr)
Return the value of an environment variable.
Definition: environment.cpp:33
The mxlib c++ namespace.
Definition: mxError.hpp:107