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   18 #include "../common.hpp" 
   19 #include "../exponential.hpp" 
   20 #include "../geometric.hpp" 
   22 #ifndef GLM_ENABLE_EXPERIMENTAL 
   23 #       error "GLM: GLM_GTX_fast_square_root 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." 
   24 #elif GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED) 
   25 #       pragma message("GLM: GLM_GTX_fast_square_root extension included") 
   36         template<
typename genType>
 
   42         template<length_t L, 
typename T, qualifier Q>
 
   43         GLM_FUNC_DECL vec<L, T, Q> 
fastSqrt(vec<L, T, Q> 
const& x);
 
   48         template<
typename genType>
 
   54         template<length_t L, 
typename T, qualifier Q>
 
   60         template<
typename genType>
 
   66         template<length_t L, 
typename T, qualifier Q>
 
   72         template<
typename genType>
 
   78         template<length_t L, 
typename T, qualifier Q>
 
   79         GLM_FUNC_DECL T 
fastDistance(vec<L, T, Q> 
const& x, vec<L, T, Q> 
const& y);
 
   84         template<
typename genType>
 
   90         template<length_t L, 
typename T, qualifier Q>
 
   96 #include "fast_square_root.inl" 
  
GLM_FUNC_DECL T fastLength(vec< L, T, Q > const &x)
Faster than the common length function but less accurate.
GLM_FUNC_DECL T fastDistance(vec< L, T, Q > const &x, vec< L, T, Q > const &y)
Faster than the common distance function but less accurate.
GLM_FUNC_DECL vec< L, T, Q > fastInverseSqrt(vec< L, T, Q > const &x)
Faster than the common inversesqrt function but less accurate.
GLM_FUNC_DECL vec< L, T, Q > fastNormalize(vec< L, T, Q > const &x)
Faster than the common normalize function but less accurate.
GLM_FUNC_DECL vec< L, T, Q > fastSqrt(vec< L, T, Q > const &x)
Faster than the common sqrt function but less accurate.