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/// @ref gtx
/// @file glm/gtx/scalar_multiplication.hpp
/// @author Joshua Moerman
///
/// Include <glm/gtx/scalar_multiplication.hpp> to use the features of this extension.
///
/// Enables scalar multiplication for all types
///
/// Since GLSL is very strict about types, the following (often used) combinations do not work:
/// double * vec4
/// int * vec4
/// vec4 / int
/// So we'll fix that! Of course "float * vec4" should remain the same (hence the enable_if magic)
#pragma once
#include "../detail/setup.hpp"
#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
# ifndef GLM_ENABLE_EXPERIMENTAL
# pragma message("GLM: GLM_GTX_scalar_multiplication is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it.")
# else
# pragma message("GLM: GLM_GTX_scalar_multiplication extension included")
# endif
#endif
#include "../vec2.hpp"
#include "../vec3.hpp"
#include "../vec4.hpp"
#include "../mat2x2.hpp"
#include <type_traits>
namespace glm
{
template<typename T, typename Vec>
using return_type_scalar_multiplication = typename std::enable_if<
!std::is_same<T, float>::value // T may not be a float
&& std::is_arithmetic<T>::value, Vec // But it may be an int or double (no vec3 or mat3, ...)
>::type;
#define GLM_IMPLEMENT_SCAL_MULT(Vec) \
template<typename T> \
return_type_scalar_multiplication<T, Vec> \
operator*(T const& s, Vec rh){ \
return rh *= static_cast<float>(s); \
} \
\
template<typename T> \
return_type_scalar_multiplication<T, Vec> \
operator*(Vec lh, T const& s){ \
return lh *= static_cast<float>(s); \
} \
\
template<typename T> \
return_type_scalar_multiplication<T, Vec> \
operator/(Vec lh, T const& s){ \
return lh *= 1.0f / static_cast<float>(s); \
}
GLM_IMPLEMENT_SCAL_MULT(vec2)
GLM_IMPLEMENT_SCAL_MULT(vec3)
GLM_IMPLEMENT_SCAL_MULT(vec4)
GLM_IMPLEMENT_SCAL_MULT(mat2)
GLM_IMPLEMENT_SCAL_MULT(mat2x3)
GLM_IMPLEMENT_SCAL_MULT(mat2x4)
GLM_IMPLEMENT_SCAL_MULT(mat3x2)
GLM_IMPLEMENT_SCAL_MULT(mat3)
GLM_IMPLEMENT_SCAL_MULT(mat3x4)
GLM_IMPLEMENT_SCAL_MULT(mat4x2)
GLM_IMPLEMENT_SCAL_MULT(mat4x3)
GLM_IMPLEMENT_SCAL_MULT(mat4)
#undef GLM_IMPLEMENT_SCAL_MULT
} // namespace glm
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