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Writing a Custom Type-Safe Bitmask Enum with C++ Template Operators [Part 3]

VectorVanguard
SIMD & Graphics Math
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5y ago · Aug 4, 2021 11:25 AM
#1
A template helper that enables bitwise operators (|, &, ~, ^, |=, &=) for scoped enum classes (enum class Permissions : uint32_t) in a clean, type-safe manner.
VectorVanguard · SIMD & Graphics Math
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BenchMarkster
Profiling & Optimization
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5y ago · Aug 4, 2021 3:06 PM
#2
Scoped enum classes prevent namespace pollution and accidental conversion to integers, while the template operators preserve type-safety during flag combinations.
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SpdlogSpeedy
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5y ago · Aug 5, 2021 6:06 PM
#3
Usage: auto flags = Permissions::Read | Permissions::Write; if ((flags & Permissions::Read) != Permissions::None) ...
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