///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
///
/// @ref gtx_fast_trigonometry
/// @file glm/gtx/fast_trigonometry.hpp
/// @date 2006-01-08 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
///
/// @defgroup gtx_fast_trigonometry GLM_GTX_fast_trigonometry: Fast trigonometric functions
/// @ingroup gtx
///
/// @brief Fast but less accurate implementations of trigonometric functions.
///
/// <glm/gtx/fast_trigonometry.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLM_GTX_fast_trigonometry
#define GLM_GTX_fast_trigonometry GLM_VERSION

// Dependency:
#include "../glm.hpp"

#if (defined(GLM_MESSAGES) && !defined(glm_ext))
#pragma message("GLM: GLM_GTX_fast_trigonometry extension included")
#endif

namespace glm {
/// @addtogroup gtx_fast_trigonometry
/// @{

//! Faster than the common sin function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastSin(const T & angle);

//! Faster than the common cos function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastCos(const T & angle);

//! Faster than the common tan function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastTan(const T & angle);

//! Faster than the common asin function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastAsin(const T & angle);

//! Faster than the common acos function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastAcos(const T & angle);

//! Faster than the common atan function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastAtan(const T & y, const T & x);

//! Faster than the common atan function but less accurate.
//! Defined between -2pi and 2pi.
//! From GLM_GTX_fast_trigonometry extension.
template<typename T>
T fastAtan(const T & angle);

/// @}
} //namespace glm

#include "fast_trigonometry.inl"

#endif //GLM_GTX_fast_trigonometry
