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getenv.hpp
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1 #pragma once
2 /*
3 * Copyright (c) 2012, 2013 Aldebaran Robotics. All rights reserved.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the COPYING file.
6 */
7
8 #ifndef QI_GETENV_HPP
9 #define QI_GETENV_HPP
10
11 #include <qi/os.hpp>
12 #include <boost/lexical_cast.hpp>
13
14 namespace qi
15 {
16 namespace os
17 {
18
19 template <typename T>
20 T getEnvDefault(const char* name, T defaultVal)
21 {
22 std::string sval = qi::os::getenv(name);
23 if (sval.empty())
24 return defaultVal;
25 else
26 return boost::lexical_cast<T>(sval);
27 }
28
29 }
30 }
31
32 #endif
qi::os::getenv
std::string getenv(const char *var)
Get an environment variable.
os.hpp
qi::os::getEnvDefault
T getEnvDefault(const char *name, T defaultVal)
Definition: getenv.hpp:20
qi::log::env::QI_DEFAULT_LOGHANDLER::name
char const *const name