BlackMATov/vmath.hpp
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qua +,-,+=,-= operators

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BlackMATov
2021-01-25 05:56:52 +07:00
parent 41c21078da
commit e26d759b6d
2 changed files with 62 additions and 0 deletions
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42
headers/vmath.hpp/vmath_qua_fun.hpp
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@@ -165,6 +165,48 @@ namespace vmath_hpp::detail
namespace vmath_hpp namespace vmath_hpp
{ {
// +operator
template < typename T >
[[nodiscard]] constexpr qua<T> operator+(const qua<T>& xs) {
return xs;
}
// -operator
template < typename T >
[[nodiscard]] constexpr qua<T> operator-(const qua<T>& xs) {
return map_join([](T x){ return -x; }, xs);
}
// operator+
template < typename T >
[[nodiscard]] constexpr qua<T> operator+(const qua<T>& xs, const qua<T>& ys) {
return map_join([](T x, T y){ return x + y; }, xs, ys);
}
// operator+=
template < typename T >
constexpr qua<T>& operator+=(qua<T>& xs, const qua<T>& ys) {
return (xs = (xs + ys));
}
// operator-
template < typename T >
[[nodiscard]] constexpr qua<T> operator-(const qua<T>& xs, const qua<T>& ys) {
return map_join([](T x, T y){ return x - y; }, xs, ys);
}
// operator-=
template < typename T >
constexpr qua<T>& operator-=(qua<T>& xs, const qua<T>& ys) {
return (xs = (xs - ys));
}
// operator== // operator==
template < typename T > template < typename T >

20
untests/vmath_qua_fun_tests.cpp
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@@ -39,4 +39,24 @@ TEST_CASE("vmath/qua_fun") {
return acc + x; return acc + x;
}, qua{1,2,3,4}) == 10); }, qua{1,2,3,4}) == 10);
} }
SUBCASE("Operators") {
STATIC_REQUIRE(+qua(1,-2,3,-4) == qua(1,-2,3,-4));
STATIC_REQUIRE(-qua(1,-2,3,-4) == qua(-1,2,-3,4));
STATIC_REQUIRE(qua(1,2,3,4) + qua(3,4,5,6) == qua(4,6,8,10));
STATIC_REQUIRE(qua(1,2,3,4) - qua(3,5,7,9) == qua(-2,-3,-4,-5));
{
qua v{1,2,3,4};
REQUIRE(&v == &(v += qua{3,4,5,6}));
REQUIRE(v == qua{4,6,8,10});
}
{
qua v{1,2,3,4};
REQUIRE(&v == &(v -= qua{3,4,5,6}));
REQUIRE(v == qua{-2,-2,-2,-2});
}
}
} }