/usr/include/uhd/utils/assert_has.hpp is in libuhd-dev 3.5.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright 2010-2011 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#ifndef INCLUDED_UHD_UTILS_ASSERT_HAS_HPP
#define INCLUDED_UHD_UTILS_ASSERT_HAS_HPP
#include <uhd/config.hpp>
#include <string>
namespace uhd{
/*!
* Check that an element is found in a container.
* If not, throw a meaningful assertion error.
* The "what" in the error will show what is
* being set and a list of known good values.
*
* \param range a list of possible settings
* \param value an element that may be in the list
* \param what a description of what the value is
* \throw assertion_error when elem not in list
*/
template<typename T, typename Range> void assert_has(
const Range &range,
const T &value,
const std::string &what = "unknown"
);
}//namespace uhd
#include <uhd/utils/assert_has.ipp>
#endif /* INCLUDED_UHD_UTILS_ASSERT_HAS_HPP */
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