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// Copyright (C) 2016-2018 T. Zachary Laine
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/yap/expression.hpp>
#include <string>
#include <vector>
#define user_expr user_expr_1
/// [USER_UNARY_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
// Operator overloads for operator!().
BOOST_YAP_USER_UNARY_OPERATOR(logical_not, user_expr, user_expr)
/// [USER_UNARY_OPERATOR]
struct lazy_vector_1 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_2
/// [USER_BINARY_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
// Operator overloads for operator&&()
BOOST_YAP_USER_BINARY_OPERATOR(logical_and, user_expr, user_expr)
/// [USER_BINARY_OPERATOR]
struct lazy_vector_2 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_3
/// [USER_CALL_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
// Member operator overloads for operator()(). These will match any
// number of parameters. Each one can be any type, even another
// expression.
BOOST_YAP_USER_CALL_OPERATOR(::user_expr)
};
/// [USER_CALL_OPERATOR]
struct lazy_vector_3 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_4
/// [USER_SUBSCRIPT_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
// Member operator overloads for operator[](). These will match any value
// on the right-hand side, even another expression.
BOOST_YAP_USER_SUBSCRIPT_OPERATOR(::user_expr)
};
/// [USER_SUBSCRIPT_OPERATOR]
struct lazy_vector_4 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_5
/// [USER_EXPR_IF_ELSE]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
// Defines an overload of if_else() that returns expressions instantiated from
// user_expr.
BOOST_YAP_USER_EXPR_IF_ELSE(::user_expr)
/// [USER_EXPR_IF_ELSE]
struct lazy_vector_5 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_6
#define is_vector is_vector_1
/// [USER_UDT_ANY_IF_ELSE]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
template <typename T>
struct is_vector : std::false_type {};
template <typename T, typename A>
struct is_vector<std::vector<T, A>> : std::true_type {};
// Defines an overload of if_else() that returns expressions instantiated from
// user_expr.
BOOST_YAP_USER_UDT_ANY_IF_ELSE(::user_expr, is_vector)
/// [USER_UDT_ANY_IF_ELSE]
struct lazy_vector_6 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef is_vector
#undef user_expr
#define user_expr user_expr_7
#define is_vector is_vector_2
/// [USER_UDT_UNARY_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
template <typename T>
struct is_vector : std::false_type {};
template <typename T, typename A>
struct is_vector<std::vector<T, A>> : std::true_type {};
// Defines an overload of operator!() that applies to vectors and returns
// expressions instantiated from user_expr.
BOOST_YAP_USER_UDT_UNARY_OPERATOR(logical_not, ::user_expr, is_vector)
/// [USER_UDT_UNARY_OPERATOR]
struct lazy_vector_7 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef is_vector
#undef user_expr
#define user_expr user_expr_8
#define is_vector is_vector_3
/// [USER_UDT_UDT_BINARY_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
template <typename T>
struct is_vector : std::false_type {};
template <typename T, typename A>
struct is_vector<std::vector<T, A>> : std::true_type {};
template <typename T>
struct is_string : std::false_type {};
template <>
struct is_string<std::string> : std::true_type {};
// Defines an overload of operator||() that applies to vectors on the left and
// strings on the right, and returns expressions instantiated from user_expr.
BOOST_YAP_USER_UDT_UDT_BINARY_OPERATOR(logical_or, ::user_expr, is_vector, is_string)
// Defines an overload of operator&&() that applies to strings and returns
// expressions instantiated from user_expr.
BOOST_YAP_USER_UDT_UDT_BINARY_OPERATOR(logical_and, ::user_expr, is_string, is_string)
/// [USER_UDT_UDT_BINARY_OPERATOR]
struct lazy_vector_8 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef is_vector
#undef user_expr
#define user_expr user_expr_9
#define is_vector is_vector_4
/// [USER_UDT_ANY_BINARY_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
template <typename T>
struct is_vector : std::false_type {};
template <typename T, typename A>
struct is_vector<std::vector<T, A>> : std::true_type {};
// Defines an overload of operator&&() that matches a vector on either side,
// and any type (possibly a vector) on the other.
BOOST_YAP_USER_UDT_ANY_BINARY_OPERATOR(logical_and, ::user_expr, is_vector)
/// [USER_UDT_ANY_BINARY_OPERATOR]
struct lazy_vector_9 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef is_vector
#undef user_expr
#define user_expr user_expr_10
/// [USER_LITERAL_PLACEHOLDER_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
};
namespace literals {
// Defines a user literal operator that makes placeholders; 2_p will be a
// 2-placeholder instantiated from the user_expr template.
BOOST_YAP_USER_LITERAL_PLACEHOLDER_OPERATOR(user_expr)
}
/// [USER_LITERAL_PLACEHOLDER_OPERATOR]
struct lazy_vector_10 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#define user_expr user_expr_11
/// [USER_ASSIGN_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
// Member operator overloads for operator=(). These will match any value
// on the right-hand side, even another expression, except that it will
// not conflict with the asignment or move assignment operators.
BOOST_YAP_USER_ASSIGN_OPERATOR(user_expr, ::user_expr)
};
/// [USER_ASSIGN_OPERATOR]
struct lazy_vector_11 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
#undef user_expr
#undef user_expr
#define user_expr user_expr_12
/// [USER_CALL_OPERATOR]
template <boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static const boost::yap::expr_kind kind = Kind;
Tuple elements;
// Member operator overloads for operator()(). These will take exactly N
// parameters. Each one can be any type, even another expression.
BOOST_YAP_USER_CALL_OPERATOR(::user_expr)
};
/// [USER_CALL_OPERATOR]
struct lazy_vector_12 :
user_expr<
boost::yap::expr_kind::terminal,
boost::hana::tuple<std::vector<double>>
>
{};
int main ()
{
lazy_vector_1 v1;
lazy_vector_2 v2;
lazy_vector_3 v3;
lazy_vector_4 v4;
lazy_vector_5 v5;
lazy_vector_6 v6;
lazy_vector_7 v7;
lazy_vector_8 v8;
lazy_vector_9 v9;
lazy_vector_10 v10;
lazy_vector_11 v11;
lazy_vector_12 v12;
return 0;
}
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