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Adding constexpr qualifier for cross product

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This commit is contained in:
RohacekD 2020-11-17 16:58:12 +01:00
parent 6ce6cd9e26
commit ae6fa0872f
2 changed files with 3 additions and 3 deletions
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4
glm/detail/func_geometric.inl
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@ -67,7 +67,7 @@ namespace detail
template<typename T, qualifier Q, bool Aligned>
struct compute_cross
{
GLM_FUNC_QUALIFIER static vec<3, T, Q> call(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR static vec<3, T, Q> call(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'cross' accepts only floating-point inputs");
@ -172,7 +172,7 @@ namespace detail
// cross
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<3, T, Q> cross(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<3, T, Q> cross(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
{
return detail::compute_cross<T, Q, detail::is_aligned<Q>::value>::call(x, y);
}

2
glm/geometric.hpp
View File

@ -56,7 +56,7 @@ namespace glm
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/cross.xml">GLSL cross man page</a>
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a>
template<typename T, qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> cross(vec<3, T, Q> const& x, vec<3, T, Q> const& y);
GLM_FUNC_DECL GLM_CONSTEXPR vec<3, T, Q> cross(vec<3, T, Q> const& x, vec<3, T, Q> const& y);
/// Returns a vector in the same direction as x but with length of 1.
/// According to issue 10 GLSL 1.10 specification, if length(x) == 0 then result is undefined and generate an error.