xtd::expressions::value< type_t > Struct Template Reference

Inheritance diagram for xtd::expressions::value< type_t >:

Definition

template<typename type_t>
struct xtd::expressions::value< type_t >

The xtd::expressions::value is the value wrapper.

Namespace

xtd::expressions

Header

#include <xtd/expressions/value>

Library

xtd.core

Examples

The following example shows how to use xtd::expressions::expression::value.

#include <xtd/xtd>
 
auto main() -> int {
  // auto value1 = [] {return 10;};
  auto value1 =  value {10};
  println("value1 result => {}", value1());
  auto value2 =  expression::value(10);
  println("value2 result => {}", value2());
  auto value = 30;
  //auto value3 = [value] {return value;};
  auto value3 =  value {value};
  println("value3 result => {}", value3());
  auto value4 =  expression::value(value);
  println("value4 result => {}", value4());
  println();
  //auto expr1 = [value] {return 20 + value;};
  auto expr1 = value {20} + expression::value(value);
  println("expr1 result => {}", expr1());
}
 
// This code produces the following output :
//
// value1 result => 10
// value2 result => 10
// value3 result => 30
// value4 result => 30
//
// expr1 result => 50

Public Fields
static constexpr operator_precedence	precedence
	The operator precedence. That contains one of xtd::expressions::operator_precedence values.

Public Constructors
constexpr	value (type_t value)
	Initialize a new xtd::expressions::value object with specified value value.

Public Operators
template<typename... args_t>
constexpr auto	operator() (args_t &&...) const
	Gets the value value.

Additional Inherited Members

Constructor & Destructor Documentation

value()

template<typename type_t>

xtd::expressions::value< type_t >::value ( type_t value )

inlineconstexpr

Initialize a new xtd::expressions::value object with specified value value.

Parameters

value

The value value.

Member Function Documentation

operator()()

template<typename type_t>

template<typename... args_t>

auto xtd::expressions::value< type_t >::operator() ( args_t && ... ) const

inlineconstexpr

Gets the value value.

Returns

The value value.

Member Data Documentation

precedence

template<typename type_t>

operator_precedence xtd::expressions::value< type_t >::precedence

staticconstexpr

The operator precedence. That contains one of xtd::expressions::operator_precedence values.

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The documentation for this struct was generated from the following file:

• xtd.core/include/xtd/expressions/value.hpp