Activation.cpp File Reference

Implements FlexNN::Activations helpers (to_string, try_parse, dispatch). More...

#include "activations/Activation.hpp"
#include <algorithm>
#include <cctype>
#include <string>
#include "activations/detail.hpp"

Include dependency graph for Activation.cpp:

Namespaces
namespace	FlexNN
	Namespace for the FlexNN neural network library.
namespace	FlexNN::Activations
namespace	FlexNN::Activations::detail

Functions
const char *	FlexNN::Activations::to_string (Activation a) noexcept
	Convert Activation to canonical lower-case string.
bool	FlexNN::Activations::try_parse (std::string_view s, Activation &out) noexcept
	Parse a string into an Activation.
Eigen::MatrixXd	FlexNN::Activations::detail::forward (Activation act, const Eigen::MatrixXd &Z, const ActivationParameters &params=ActivationParameters{})
	Elementwise forward for a single activation.
Eigen::MatrixXd	FlexNN::Activations::detail::backward (Activation act, const Eigen::MatrixXd &dA, const Eigen::MatrixXd &Z, const Eigen::MatrixXd &A, const ActivationParameters &params=ActivationParameters{}) noexcept
	Elementwise backward for a single activation (hidden layers).

Detailed Description

Implements FlexNN::Activations helpers (to_string, try_parse, dispatch).

Why out-of-line: to_string and try_parse are non-trivial (string handling) and not hot — keeping them in a .cpp avoids inlining bloat and keeps Activation.hpp small for the many layer headers that include it. The per-activation math stays header-only inline (see include/activations) so the compiler can vectorize it at call sites.