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| author | Adrian Kummerlaender | 2015-02-08 19:10:59 +0100 |
|---|---|---|
| committer | Adrian Kummerlaender | 2015-02-08 19:10:59 +0100 |
| commit | dd504e4fcbf73750097024dce397754dc5883386 (patch) | |
| tree | 73c0c197c4ef8cd106d7a56092b6b5458e573f97 | |
| parent | 3feb8a168075c4007fc466a0a4353e62e69d9802 (diff) | |
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Added `GreaterThan` and `LowerThan` comparators
| -rw-r--r-- | src/operation/math.h | 16 | ||||
| -rw-r--r-- | test.cc | 48 |
2 files changed, 62 insertions, 2 deletions
diff --git a/src/operation/math.h b/src/operation/math.h index 28a6832..d855893 100644 --- a/src/operation/math.h +++ b/src/operation/math.h @@ -42,6 +42,9 @@ using Divide = std::integral_constant< X::value / Y::value >; +template <typename Base> +using Square = Multiply<Base, Base>; + template < typename X, typename Y @@ -60,8 +63,17 @@ using Even = EqualValue< template <typename X> using Odd = Not<Even<X>>; -template <typename Base> -using Square = Multiply<Base, Base>; +template < + typename X, + typename Y +> +using GreaterThan = Boolean<(X::value > Y::value)>; + +template < + typename X, + typename Y +> +using LowerThan = Boolean<(X::value < Y::value)>; } @@ -107,6 +107,54 @@ static_assert( "(square 64) != 4096" ); +static_assert( + std::is_same< + tav::Boolean<true>, + tav::Odd<tav::Int<1>>::type + >::value, + "(odd? 1) != #t" +); + +static_assert( + std::is_same< + tav::Boolean<false>, + tav::Odd<tav::Int<2>>::type + >::value, + "(odd? 2) != #f" +); + +static_assert( + std::is_same< + tav::Boolean<true>, + tav::GreaterThan<tav::Int<2>, tav::Int<1>>::type + >::value, + "(> 2 1) != #f" +); + +static_assert( + std::is_same< + tav::Boolean<false>, + tav::GreaterThan<tav::Int<1>, tav::Int<2>>::type + >::value, + "(> 1 2) != #f" +); + +static_assert( + std::is_same< + tav::Boolean<true>, + tav::LowerThan<tav::Int<1>, tav::Int<2>>::type + >::value, + "(< 1 2) != #t" +); + +static_assert( + std::is_same< + tav::Boolean<false>, + tav::LowerThan<tav::Int<2>, tav::Int<1>>::type + >::value, + "(< 2 1) != #f" +); + // logic static_assert( |