Files
MicrOBU/microbu-esp32c5/external/vanetza-idf/vanetza/common/unit_interval.cpp
T
Ashin Walpola 0e9525162d Keep the colleague's microbu-esp32c5 tree in this repository
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but
that tree was gitignored, so a clone of this repository could not build the
firmware it ships. It is now committed here as ordinary files in its own
folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP
bridge's signature verification (--trust) used on the bench. Nothing is
fetched from or pushed to the colleague's repository; this repository and
its remotes carry everything. The folder's own .gitignore keeps build output,
downloaded components and private key material out, as it did there; the
committed file set is identical to that repository's tracked files.

The ESP32-C5 is still flashed from obu-firmware/, which only takes
vanetza-idf from microbu-esp32c5/, so the two stay separate folders.
FLASHING.md says how to take a newer version of the colleague's tree (copy
it over the folder, rebuild, test, commit).
2026-09-23 17:46:40 +02:00

90 lines
1.8 KiB
C++

#include <vanetza/common/unit_interval.hpp>
#include <algorithm>
#include <cmath>
#include <limits>
namespace vanetza
{
UnitInterval& UnitInterval::operator+=(const UnitInterval& other)
{
m_value += other.m_value;
return clamp();
}
UnitInterval& UnitInterval::operator-=(const UnitInterval& other)
{
m_value -= other.m_value;
return clamp();
}
UnitInterval& UnitInterval::operator*=(const UnitInterval& other)
{
m_value *= other.m_value;
// all unit interval multiplications remain within range
return *this;
}
UnitInterval& UnitInterval::operator/=(const UnitInterval& other)
{
m_value /= other.m_value;
// only upper limit has to be enforced
m_value = std::min(m_value, 1.0);
return *this;
}
UnitInterval& UnitInterval::operator+=(double value)
{
m_value += value;
return clamp();
}
UnitInterval& UnitInterval::operator-=(double value)
{
m_value -= value;
return clamp();
}
UnitInterval& UnitInterval::operator*=(double value)
{
m_value *= value;
return clamp();
}
UnitInterval& UnitInterval::operator/=(double value)
{
m_value /= value;
return clamp();
}
bool UnitInterval::operator<(const UnitInterval& other) const
{
return m_value < other.m_value;
}
bool UnitInterval::operator==(const UnitInterval& other) const
{
// epsilon should be fine for values in [0.0, 1.0]
return std::abs(m_value - other.m_value) < std::numeric_limits<double>::epsilon();
}
UnitInterval& UnitInterval::clamp()
{
m_value = clamp(m_value);
return *this;
}
UnitInterval UnitInterval::complement() const
{
UnitInterval complement;
complement.m_value = 1.0 - m_value;
return complement;
}
UnitInterval mean(UnitInterval lhs, UnitInterval rhs)
{
return UnitInterval { 0.5 * (lhs.value() + rhs.value()) };
}
} // namespace vanetza