opcua::IsBitmaskEnum< T > Struct Template Reference
#include <bitmask.hpp>
Inheritance diagram for opcua::IsBitmaskEnum< T >:
Detailed Description
template<typename T>
struct opcua::IsBitmaskEnum< T >
struct opcua::IsBitmaskEnum< T >
Trait to define an enum (class) as a bitmask and allow bitwise operations.
// define enum (class)
enum class Access {
Read = 1 << 0,
Write = 1 << 1,
};
// allow bitwise operations
// 1. with template specialization of IsBitmaskEnum trait
template <>
struct IsBitmaskEnum<Access> : std::true_type {};
// 2. with overload of function isBitmaskEnum
constexpr std::true_type isBitmaskEnum(Access);
// use bitwise operations
Access mask = Access::Read | Access::Write;
constexpr std::false_type isBitmaskEnum(T)
Function template to define an enum (class) as a bitmask and allow bitwise operations.
Trait to define an enum (class) as a bitmask and allow bitwise operations.
Definition bitmask.hpp:44
Exposes the possibilities of a client to write the attributes of the node In contrast to the write mask
Definition userwritemask.dox:2
Definition at line 44 of file bitmask.hpp.
Related Symbols | |
(Note that these are not member symbols.) | |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator& (T lhs, T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator| (T lhs, T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator^ (T lhs, T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator~ (T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator|= (T &lhs, T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator&= (T &lhs, T rhs) noexcept |
| template<typename T > | |
| constexpr std::enable_if_t< IsBitmaskEnum< T >::value, T > | operator^= (T &lhs, T rhs) noexcept |
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