ryan/libdpf
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Initial import of libdpf.

Browse source 
Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Ryan Henry 2026-09-24 14:08:32 -06:00
commit e4e666f459
4563 changed files with 1690372 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

52
include/grotto/gadgets/activations/softplus.hpp Normal file
View file

@ -0,0 +1,52 @@
/// @file grotto/gadgets/activations/softplus.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_ACTIVATIONS_SOFTPLUS_HPP__
#define LIBDPF_INCLUDE_GROTTO_GADGETS_ACTIVATIONS_SOFTPLUS_HPP__
#include <cmath>
#include <array>
#include <limits>
#include "grotto/gadget_hints.hpp"
namespace grotto
{
namespace gadgets
{
static constexpr double softplus_default_beta = 1;
template <double const & beta = softplus_default_beta>
struct softplus
{
template <typename T>
T operator()(T x)
{
if (x > 20) return x*beta;
return (std::log1p(std::exp(beta*x)))/beta;
}
};
template <double const & beta>
struct gadget_hints<softplus<beta>>
{
static constexpr double min = std::numeric_limits<double>::min();
static constexpr double max = std::numeric_limits<double>::max();
static constexpr double poles[] = { };
static constexpr double interesting_points[] = { 20 };
static constexpr unsigned degree = 3;
static constexpr bool has_canonical_representation = false;
static constexpr double canonical_bounds[] = { };
static constexpr std::array<double, degree+1> canonical_polys[] = { };
};
} // namespace gadgets
} // namespace grotto
#endif // LIBDPF_INCLUDE_GROTTO_GADGETS_ACTIVATIONS_SOFTPLUS_HPP__