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#lockdown Nick.Penwarden (Will update with full description tomorrow) [CL 2984534 by Matthew Griffin in Main branch]
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/** @file
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@brief Header
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@date 2015
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@author
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Sensics, Inc.
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<http://sensics.com/osvr>
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*/
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// Copyright 2015 Sensics, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef INCLUDED_GetEnvironmentVariable_h_GUID_500031B7_31FB_45A1_B1E9_8E61905A4E0F
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#define INCLUDED_GetEnvironmentVariable_h_GUID_500031B7_31FB_45A1_B1E9_8E61905A4E0F
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// Internal Includes
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#include <osvr/Common/Export.h>
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// Library/third-party includes
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#include <boost/optional.hpp>
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// Standard includes
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#include <string>
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namespace osvr {
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namespace common {
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/// @brief Gets an environment variable's value. On systems that don't
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/// distinguish between having a variable defined and having it non-empty
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/// (like Windows), empty will imply not defined and thus an empty
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/// boost::optional return value.
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OSVR_COMMON_EXPORT boost::optional<std::string>
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getEnvironmentVariable(std::string const &var);
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} // namespace common
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} // namespace osvr
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#endif // INCLUDED_GetEnvironmentVariable_h_GUID_500031B7_31FB_45A1_B1E9_8E61905A4E0F
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