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Diffstat (limited to 'unit/atf-src/atf-c++/detail/env.hpp')
| -rw-r--r-- | unit/atf-src/atf-c++/detail/env.hpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/unit/atf-src/atf-c++/detail/env.hpp b/unit/atf-src/atf-c++/detail/env.hpp new file mode 100644 index 0000000..e1dcbc0 --- /dev/null +++ b/unit/atf-src/atf-c++/detail/env.hpp @@ -0,0 +1,85 @@ +// Copyright (c) 2007 The NetBSD Foundation, Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND +// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, +// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY +// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE +// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER +// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#if !defined(ATF_CXX_DETAIL_ENV_HPP) +#define ATF_CXX_DETAIL_ENV_HPP + +#include <string> + +namespace atf { +namespace env { + +// ------------------------------------------------------------------------ +// Free functions. +// ------------------------------------------------------------------------ + +//! +//! \brief Returns the value of an environment variable. +//! +//! Returns the value of the specified environment variable. The variable +//! must be defined. +//! +std::string get(const std::string&); + +//! +//! \brief Returns the value of an environment variable with a default. +//! +std::string get(const std::string&, const std::string&); + +//! +//! \brief Checks if the environment has a variable. +//! +//! Checks if the environment has a given variable. +//! +bool has(const std::string&); + +//! +//! \brief Sets an environment variable to a given value. +//! +//! Sets the specified environment variable to the given value. Note that +//! variables set to the empty string are different to undefined ones. +//! +//! Be aware that this alters the program's global status, which in general +//! is a bad thing to do due to the side-effects it may have. There are +//! some legitimate usages for this function, though. +//! +void set(const std::string&, const std::string&); + +//! +//! \brief Unsets an environment variable. +//! +//! Unsets the specified environment variable Note that undefined +//! variables are different to those defined but set to an empty value. +//! +//! Be aware that this alters the program's global status, which in general +//! is a bad thing to do due to the side-effects it may have. There are +//! some legitimate usages for this function, though. +//! +void unset(const std::string&); + +} // namespace env +} // namespace atf + +#endif // !defined(ATF_CXX_DETAIL_ENV_HPP) |