Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
90 lines
1.8 KiB
C++
90 lines
1.8 KiB
C++
#include <vanetza/common/unit_interval.hpp>
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#include <algorithm>
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#include <cmath>
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#include <limits>
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namespace vanetza
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{
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UnitInterval& UnitInterval::operator+=(const UnitInterval& other)
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{
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m_value += other.m_value;
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return clamp();
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}
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UnitInterval& UnitInterval::operator-=(const UnitInterval& other)
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{
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m_value -= other.m_value;
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return clamp();
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}
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UnitInterval& UnitInterval::operator*=(const UnitInterval& other)
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{
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m_value *= other.m_value;
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// all unit interval multiplications remain within range
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return *this;
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}
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UnitInterval& UnitInterval::operator/=(const UnitInterval& other)
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{
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m_value /= other.m_value;
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// only upper limit has to be enforced
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m_value = std::min(m_value, 1.0);
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return *this;
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}
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UnitInterval& UnitInterval::operator+=(double value)
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{
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m_value += value;
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return clamp();
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}
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UnitInterval& UnitInterval::operator-=(double value)
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{
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m_value -= value;
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return clamp();
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}
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UnitInterval& UnitInterval::operator*=(double value)
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{
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m_value *= value;
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return clamp();
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}
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UnitInterval& UnitInterval::operator/=(double value)
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{
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m_value /= value;
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return clamp();
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}
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bool UnitInterval::operator<(const UnitInterval& other) const
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{
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return m_value < other.m_value;
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}
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bool UnitInterval::operator==(const UnitInterval& other) const
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{
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// epsilon should be fine for values in [0.0, 1.0]
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return std::abs(m_value - other.m_value) < std::numeric_limits<double>::epsilon();
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}
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UnitInterval& UnitInterval::clamp()
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{
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m_value = clamp(m_value);
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return *this;
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}
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UnitInterval UnitInterval::complement() const
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{
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UnitInterval complement;
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complement.m_value = 1.0 - m_value;
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return complement;
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}
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UnitInterval mean(UnitInterval lhs, UnitInterval rhs)
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{
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return UnitInterval { 0.5 * (lhs.value() + rhs.value()) };
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}
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} // namespace vanetza
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