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105 lines
2.0 KiB
105 lines
2.0 KiB
#pragma once
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#include <boost/variant.hpp>
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#include <initializer_list>
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#include <stdexcept>
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#include <vector>
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#include "paddle/framework/dim.h"
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namespace paddle {
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namespace framework {
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namespace {
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typedef boost::variant<Dim<1>, Dim<2>, Dim<3>, Dim<4>, Dim<5>, Dim<6>, Dim<7>,
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Dim<8>, Dim<9>>
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DDimVar;
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}
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/**
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* \brief A dynamically sized dimension.
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*
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* The number of dimensions must be between [1, 9].
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*/
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struct DDim {
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DDimVar var;
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DDim() : var(Dim<1>()) {}
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template <int D>
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DDim(const Dim<D>& in) : var(in) {}
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template <int D>
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DDim& operator=(const Dim<D>& in) {
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var = in;
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return *this;
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}
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int& operator[](int idx);
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int operator[](int idx) const;
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template <typename Visitor>
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typename Visitor::result_type apply_visitor(Visitor& visitor) {
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return var.apply_visitor(visitor);
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}
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template <typename Visitor>
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typename Visitor::result_type apply_visitor(Visitor& visitor) const {
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return var.apply_visitor(visitor);
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}
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DDimVar getVar() { return var; }
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bool operator==(DDim d) const;
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bool operator!=(DDim d) const;
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DDim operator+(DDim d) const;
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DDim operator*(DDim d) const;
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};
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/**
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* \brief Make a DDim from std::vector<int>
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*
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* \param dims An vector of ints. Must be sized between [1, 9]
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*/
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DDim make_ddim(const std::vector<int>& dims);
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/**
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* \brief Make a DDim from an initializer list
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*
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* \param dims An initializer list of ints. Must be sized between [1, 9]
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*
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*/
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DDim make_ddim(std::initializer_list<int> dims);
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int get(const DDim& dim, int idx);
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void set(DDim& dim, int idx, int val);
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std::vector<int> vectorize(const DDim& ddim);
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ssize_t product(const DDim& ddim);
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/**
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* \brief What is the length of this dimension?
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*
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* \param Dynamic dimension to inspect
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*/
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int arity(const DDim& ddim);
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std::ostream& operator<<(std::ostream&, const DDim&);
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} // namespace framework
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} // namespace paddle
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namespace boost {
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template <typename T>
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T get(const paddle::framework::DDim& in) {
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return boost::get<T>(in.var);
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}
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} // namespace boost
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