BlackMATov/vmath.hpp
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add sincos

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BlackMATov
2020-12-06 04:04:19 +07:00
parent 80287ccaf8
commit b246cad6af
5 changed files with 39 additions and 0 deletions
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6
README.md
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@@ -617,6 +617,9 @@ T acosh(T x) noexcept;
template < floating_point T >
T atanh(T x) noexcept;
template < floating_point T >
void sincos(T x, T* s, T* c) noexcept;
// Vector
template < typename T, size_t Size >
@@ -663,6 +666,9 @@ vec<T, Size> acosh(const vec<T, Size>& xs);
template < typename T, size_t Size >
vec<T, Size> atanh(const vec<T, Size>& xs);
template < typename T, size_t Size >
void sincos(const vec<T, Size>& xs, vec<T, Size>* ss, vec<T, Size>* cs);
```
### Exponential Functions

13
headers/vmath.hpp/vmath_fun.hpp
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@@ -103,6 +103,19 @@ namespace vmath_hpp
atanh(T x) noexcept {
return std::atanh(x);
}
template < typename T >
[[nodiscard]] std::enable_if_t<std::is_floating_point_v<T>, std::pair<T, T>>
sincos(T x) noexcept {
return {sin(x), cos(x)};
}
template < typename T >
[[nodiscard]] std::enable_if_t<std::is_floating_point_v<T>, void>
sincos(T x, T* s, T* c) noexcept {
*s = sin(x);
*c = cos(x);
}
}
//

6
headers/vmath.hpp/vmath_vec_fun.hpp
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@@ -400,6 +400,12 @@ namespace vmath_hpp
[[nodiscard]] vec<T, Size> atanh(const vec<T, Size>& xs) {
return map_join([](T x) { return atanh(x); }, xs);
}
template < typename T, size_t Size >
void sincos(const vec<T, Size>& xs, vec<T, Size>* ss, vec<T, Size>* cs) {
*ss = map_join([](T x){ return sin(x); }, xs);
*cs = map_join([](T x){ return cos(x); }, xs);
}
}
//

7
untests/vmath_fun_tests.cpp
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@@ -34,6 +34,13 @@ TEST_CASE("vmath/fun") {
(void)asinh(0.f);
(void)acosh(0.f);
(void)atanh(0.f);
{
float out_s{}, out_c{};
sincos(15.f, &out_s, &out_c);
REQUIRE(out_s == approx(sin(15.f)));
REQUIRE(out_c == approx(cos(15.f)));
}
}
SUBCASE("Exponential Functions") {

7
untests/vmath_vec_fun_tests.cpp
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@@ -108,6 +108,13 @@ TEST_CASE("vmath/vec_fun") {
(void)asinh(float2(1.f));
(void)acosh(float2(1.f));
(void)atanh(float2(1.f));
{
float2 out_ss{}, out_cs{};
sincos(float2(10.f,15.f), &out_ss, &out_cs);
REQUIRE(out_ss == approx2(sin(10.f), sin(15.f)));
REQUIRE(out_cs == approx2(cos(10.f), cos(15.f)));
}
}
SUBCASE("Exponential Functions") {