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AK: Add a Conditional<condition, TrueType, FalseType> template

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This allows you to select a type based on a compile-time condition.
This commit is contained in:
Andreas Kling 2020-03-08 10:36:11 +01:00
parent 10e0d4a196
commit b98d8ad5b0
1 changed files with 11 additions and 0 deletions
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11
AK/StdLibExtras.h
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@ -320,8 +320,19 @@ struct IsSame<T, T> {
}; };
}; };
template<bool condition, class TrueType, class FalseType>
struct Conditional {
typedef TrueType Type;
};
template<class TrueType, class FalseType>
struct Conditional<false, TrueType, FalseType> {
typedef FalseType Type;
};
} }
using AK::Conditional;
using AK::ceil_div; using AK::ceil_div;
using AK::clamp; using AK::clamp;
using AK::exchange; using AK::exchange;