toolbox::traits::is_printable< T > Struct Template Reference

检查类型是否可打印/Check if type is printable More...

#include <type_traits.hpp>

Static Public Attributes
static constexpr bool	value = decltype(test<T>(0))::value

Detailed Description

template<typename T>
struct toolbox::traits::is_printable< T >

检查类型是否可打印/Check if type is printable

Template Parameters

T	要检查的类型/Type to check

struct Printable { friend std::ostream& operator<<(std::ostream& os, const
Printable&) { return os; } }; struct NonPrintable {};
 
static_assert(is_printable<int>::value);
static_assert(is_printable<std::string>::value);
static_assert(is_printable<Printable>::value);
static_assert(!is_printable<NonPrintable>::value);

Member Data Documentation

value

template<typename T >

constexpr bool toolbox::traits::is_printable< T >::value = decltype(test<T>(0))::value

staticconstexpr

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

• src/include/cpp-toolbox/type_traits.hpp