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bitmask_operators.h
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1
31
32#ifndef HERMES_COMMON_BITMASK_OPERATORS_H
33#define HERMES_COMMON_BITMASK_OPERATORS_H
34
35#include <type_traits>
36
37namespace hermes {
38
58#define HERMES_ENABLE_BITMASK_OPERATORS(x) \
59template<> \
60struct EnableBitMaskOperators<x> \
61{ \
62 static const bool enable = true; \
63}
64
84#define HERMES_MASK_BIT(MASK, BIT) (((MASK) & (BIT)) == (BIT))
85
88template<typename Enum>
89struct EnableBitMaskOperators {
90 static const bool enable = false;
91};
92
98template<typename Enum>
99HERMES_DEVICE_CALLABLE
100typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type
101operator|(Enum lhs, Enum rhs) noexcept {
103 using underlying = typename std::underlying_type<Enum>::type;
104 return static_cast<Enum> (
105 static_cast<underlying>(lhs) |
106 static_cast<underlying>(rhs)
107 );
108}
109
115template<typename Enum>
116HERMES_DEVICE_CALLABLE
117typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type
118operator&(Enum lhs, Enum rhs) {
120 using underlying = typename std::underlying_type<Enum>::type;
121 return static_cast<Enum> (
122 static_cast<underlying>(lhs) &
123 static_cast<underlying>(rhs)
124 );
125}
126
132template<typename Enum>
133HERMES_DEVICE_CALLABLE
134typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type
135operator^(Enum lhs, Enum rhs) {
136 using underlying = typename std::underlying_type<Enum>::type;
137 return static_cast<Enum> (
138 static_cast<underlying>(lhs) ^
139 static_cast<underlying>(rhs)
140 );
141}
142
147template<typename Enum>
148HERMES_DEVICE_CALLABLE
149typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type
150operator~(Enum rhs) {
152 using underlying = typename std::underlying_type<Enum>::type;
153 return static_cast<Enum> (
154 ~static_cast<underlying>(rhs)
155 );
156}
157
158}
159
160#endif //HERMES_COMMON_BITMASK_OPERATORS_H
161
hermes::operator&
HERMES_DEVICE_CALLABLE std::enable_if< EnableBitMaskOperators< Enum >::enable, Enum >::type operator&(Enum lhs, Enum rhs)
Definition bitmask_operators.h:118
hermes::operator|
HERMES_DEVICE_CALLABLE std::enable_if< EnableBitMaskOperators< Enum >::enable, Enum >::type operator|(Enum lhs, Enum rhs) noexcept
Definition bitmask_operators.h:101
hermes::operator^
HERMES_DEVICE_CALLABLE std::enable_if< EnableBitMaskOperators< Enum >::enable, Enum >::type operator^(Enum lhs, Enum rhs)
adds ^ operation support
Definition bitmask_operators.h:135
hermes::operator~
HERMES_DEVICE_CALLABLE std::enable_if< EnableBitMaskOperators< Enum >::enable, Enum >::type operator~(Enum rhs)
adds ~ operation support
Definition bitmask_operators.h:150
HERMES_DEVICE_CALLABLE
#define HERMES_DEVICE_CALLABLE
Specifies that the function can be called from both host and device sides.
Definition defs.h:45
hermes::EnableBitMaskOperators
Wrapper struct to add bitwise operations to enum class.
Definition bitmask_operators.h:89
hermes::EnableBitMaskOperators::enable
static const bool enable
enable flag
Definition bitmask_operators.h:90