BlackMATov/vmath.hpp
1
0
Fork 0
mirror of https://github.com/BlackMATov/vmath.hpp.git synced 2025-12-16 14:11:28 +07:00
Code Issues Packages Projects Releases Wiki Activity

two-type dot and cross functions

Browse Source
This commit is contained in:
BlackMATov
2021-02-24 07:23:48 +07:00
parent 302987a422
commit f0b616aa09
7 changed files with 52 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
headers/vmath.hpp/vmath_fun.hpp
View File

@@ -305,10 +305,11 @@ namespace vmath_hpp
namespace vmath_hpp
{
template < typename T >
[[nodiscard]] std::enable_if_t<std::is_arithmetic_v<T>, T>
constexpr dot(T x, T y) noexcept {
return x * y;
template < typename T, typename U
, typename V = decltype(std::declval<T>() * std::declval<U>()) >
[[nodiscard]] std::enable_if_t<std::is_arithmetic_v<V>, V>
constexpr dot(T x, U y) noexcept {
return { x * y };
}
template < typename T >

7
headers/vmath.hpp/vmath_qua_fun.hpp
View File

@@ -249,8 +249,11 @@ namespace vmath_hpp
namespace vmath_hpp
{
template < typename T >
[[nodiscard]] constexpr T dot(const qua<T>& xs, const qua<T>& ys) {
template < typename T, typename U
, typename V = decltype(dot(
std::declval<vec<T, 4>>(),
std::declval<vec<U, 4>>())) >
[[nodiscard]] constexpr V dot(const qua<T>& xs, const qua<U>& ys) {
return dot(vec{xs}, vec{ys});
}

21
headers/vmath.hpp/vmath_vec_fun.hpp
View File

@@ -775,11 +775,12 @@ namespace vmath_hpp
namespace vmath_hpp
{
template < typename T, std::size_t Size >
[[nodiscard]] constexpr T dot(const vec<T, Size>& xs, const vec<T, Size>& ys) {
return fold_join([](T acc, T x, T y){
template < typename T, typename U, std::size_t Size
, typename V = decltype(std::declval<T>() * std::declval<U>()) >
[[nodiscard]] constexpr V dot(const vec<T, Size>& xs, const vec<U, Size>& ys) {
return fold_join([](V acc, T x, U y){
return acc + (x * y);
}, T{0}, xs, ys);
}, V{0}, xs, ys);
}
template < typename T, std::size_t Size >
@@ -812,13 +813,15 @@ namespace vmath_hpp
return length2(ys - xs);
}
template < typename T >
[[nodiscard]] constexpr T cross(const vec<T, 2>& xs, const vec<T, 2>& ys) {
return xs.x * ys.y - xs.y * ys.x;
template < typename T, typename U
, typename V = decltype(std::declval<T>() * std::declval<U>()) >
[[nodiscard]] constexpr V cross(const vec<T, 2>& xs, const vec<U, 2>& ys) {
return { xs.x * ys.y - xs.y * ys.x };
}
template < typename T >
[[nodiscard]] constexpr vec<T, 3> cross(const vec<T, 3>& xs, const vec<T, 3>& ys) {
template < typename T, typename U
, typename V = decltype(std::declval<T>() * std::declval<U>()) >
[[nodiscard]] constexpr vec<V, 3> cross(const vec<T, 3>& xs, const vec<U, 3>& ys) {
return {
xs.y * ys.z - xs.z * ys.y,
xs.z * ys.x - xs.x * ys.z,