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Initial import of libdpf.

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Co-authored-by: Cursor <cursoragent@cursor.com>
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Ryan Henry 2026-09-24 14:08:32 -06:00
commit e4e666f459
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include/grotto/gadgets/elementary/step.hpp Normal file
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/// @file grotto/gadgets/elementary/step.hpp
/// @author Ryan Henry <ryan.henry@ucalgary.ca>
/// @brief
/// @copyright Copyright (c) 2019-2023 Ryan Henry and others
/// @license Released under a GNU General Public v2.0 (GPLv2) license;
/// see [LICENSE.md](@ref GPLv2) for details.
#ifndef LIBDPF_INCLUDE_GROTTO_GADGETS_ELEMENTARY_STEP_HPP__
#define LIBDPF_INCLUDE_GROTTO_GADGETS_ELEMENTARY_STEP_HPP__
#include <array>
#include <limits>
#include "grotto/gadget_hints.hpp"
namespace grotto
{
namespace gadgets
{
static constexpr double step_default_before = 0;
static constexpr double step_default_after = 1;
template <double const & at,
double const & before = step_default_before,
double const & after = step_default_after>
struct step
{
template <typename T>
T operator()(T x) { return x < at ? before : after; }
};
template <double const & at,
double const & before,
double const & after>
struct gadget_hints<step<at, before, after>>
{
static constexpr double min = std::numeric_limits<double>::min();
static constexpr double max = std::numeric_limits<double>::max();
static constexpr unsigned degree = 0;
static constexpr double poles[] = { };
static constexpr double interesting_points[] = { at };
static constexpr bool has_canonical_representation = true;
static constexpr double canonical_bounds[] = { at };
static constexpr std::array<double, degree+1> canonical_polys[] = { before, after };
};
} // namespace gadgets
} // namespace grotto
#endif // LIBDPF_INCLUDE_GROTTO_GADGETS_ELEMENTARY_STEP_HPP__