juce_EnumHelpers.h File Reference

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Namespaces
namespace	juce
	JUCE Namespace.

Macros
#define	JUCE_DECLARE_SCOPED_ENUM_BITWISE_OPERATORS(EnumType)
	Macro to enable bitwise operations for scoped enums (enum struct/class).

Functions
template<typename EnumType , std::enable_if_t< std::is_enum_v< EnumType >, int > = 0>
constexpr bool	juce::hasBitValueSet (EnumType enumValue, EnumType valueToLookFor) noexcept
template<typename EnumType , std::enable_if_t< std::is_enum_v< EnumType >, int > = 0>
constexpr EnumType	juce::withBitValueSet (EnumType enumValue, EnumType valueToAdd) noexcept
template<typename EnumType , std::enable_if_t< std::is_enum_v< EnumType >, int > = 0>
constexpr EnumType	juce::withBitValueCleared (EnumType enumValue, EnumType valueToRemove) noexcept

Macro Definition Documentation

JUCE_DECLARE_SCOPED_ENUM_BITWISE_OPERATORS

#define JUCE_DECLARE_SCOPED_ENUM_BITWISE_OPERATORS

(

EnumType

)

Macro to enable bitwise operations for scoped enums (enum struct/class).

To use this, add the line JUCE_DECLARE_SCOPED_ENUM_BITWISE_OPERATORS (MyEnum) after your enum declaration at file scope level.

e.g.

enum class MyEnum
{
    one     = 1 << 0,
    two     = 1 << 1,
    three   = 1 << 2
};
 
JUCE_DECLARE_SCOPED_ENUM_BITWISE_OPERATORS (MyEnum)
 
MyEnum e = MyEnum::one | MyEnum::two;
 
bool hasTwo = (e & MyEnum::two) != MyEnum{}; // true
bool hasTwo = hasBitValueSet (e, MyEnum::two); // true
 
e = withBitValueCleared (e, MyEnum::two);
 
bool hasTwo = hasBitValueSet (e, MyEnum::two); // false

Definition at line 52 of file juce_EnumHelpers.h.