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/// @ref gtc_constants
/// @file glm/gtc/constants.hpp
///
/// @see core (dependence)
/// @see gtc_half_float (dependence)
///
/// @defgroup gtc_constants GLM_GTC_constants
/// @ingroup gtc
///
/// @brief Provide a list of constants and precomputed useful values.
///
/// <glm/gtc/constants.hpp> need to be included to use these features.
#pragma once
// Dependencies
#include "../detail/setup.hpp"
#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)
# pragma message("GLM: GLM_GTC_constants extension included")
#endif
namespace glm
{
/// @addtogroup gtc_constants
/// @{
/// Return the epsilon constant for floating point types.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType epsilon();
/// Return 0.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType zero();
/// Return 1.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType one();
/// Return the pi constant.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType pi();
/// Return pi * 2.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType two_pi();
/// Return square root of pi.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_pi();
/// Return pi / 2.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType half_pi();
/// Return pi / 2 * 3.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType three_over_two_pi();
/// Return pi / 4.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType quarter_pi();
/// Return 1 / pi.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType one_over_pi();
/// Return 1 / (pi * 2).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType one_over_two_pi();
/// Return 2 / pi.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType two_over_pi();
/// Return 4 / pi.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType four_over_pi();
/// Return 2 / sqrt(pi).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType two_over_root_pi();
/// Return 1 / sqrt(2).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType one_over_root_two();
/// Return sqrt(pi / 2).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_half_pi();
/// Return sqrt(2 * pi).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_two_pi();
/// Return sqrt(ln(4)).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_ln_four();
/// Return e constant.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType e();
/// Return Euler's constant.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType euler();
/// Return sqrt(2).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_two();
/// Return sqrt(3).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_three();
/// Return sqrt(5).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType root_five();
/// Return ln(2).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType ln_two();
/// Return ln(10).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType ln_ten();
/// Return ln(ln(2)).
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType ln_ln_two();
/// Return 1 / 3.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType third();
/// Return 2 / 3.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType two_thirds();
/// Return the golden ratio constant.
/// @see gtc_constants
template <typename genType>
GLM_FUNC_DECL GLM_CONSTEXPR genType golden_ratio();
/// @}
} //namespace glm
#include "constants.inl"
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