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5ee6b828de
In multiple places in the UHD code, we were doing the same calculation for a wrapped frequency (wrap it into the first Nyquist zone). This math was using boost::math, too. Instead of editing every instance, we create a new function, uhd::math::wrap_frequency(), and replace all of its separate implementations with this function. The new function also no longer relies on boost::math::sign.
34 lines
915 B
C++
34 lines
915 B
C++
//
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// Copyright 2014 Ettus Research LLC
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// Copyright 2018 Ettus Research, a National Instruments Company
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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#include <uhd/utils/math.hpp>
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#include <boost/test/unit_test.hpp>
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BOOST_AUTO_TEST_CASE(test_lcm)
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{
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BOOST_CHECK_EQUAL(uhd::math::lcm<int>(2, 3), 6);
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}
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BOOST_AUTO_TEST_CASE(test_gcd)
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{
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BOOST_CHECK_EQUAL(uhd::math::gcd<int>(6, 15), 3);
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}
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BOOST_AUTO_TEST_CASE(test_sign)
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{
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BOOST_CHECK_EQUAL(uhd::math::sign(2.3), +1);
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BOOST_CHECK_EQUAL(uhd::math::sign(-2.3), -1);
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BOOST_CHECK_EQUAL(uhd::math::sign(0.0), 0);
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}
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BOOST_AUTO_TEST_CASE(test_wrap_frequency)
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{
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BOOST_CHECK_EQUAL(uhd::math::wrap_frequency(10e6, 200e6), 10e6);
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BOOST_CHECK_EQUAL(uhd::math::wrap_frequency(250e6, 200e6), 50e6);
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BOOST_CHECK_EQUAL(uhd::math::wrap_frequency(120e6, 200e6), -80e6);
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BOOST_CHECK_EQUAL(uhd::math::wrap_frequency(-250e6, 200e6), -50e6);
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}
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