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+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2015 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.
+///
+/// Restrictions:
+/// By making use of the Software for military purposes, you choose to make
+/// a Bunny unhappy.
+///
+/// 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_common
+/// @file glm/gtx/common.inl
+/// @date 2014-09-08 / 2014-09-08
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <cmath>
+
+namespace glm
+{
+ template <typename T>
+ GLM_FUNC_QUALIFIER bool isdenormal(T const & x)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+# if GLM_HAS_CXX11_STL
+ return std::fpclassify(x) == FP_SUBNORMAL;
+# else
+ return x != static_cast<T>(0) && std::fabs(x) < std::numeric_limits<T>::min();
+# endif
+ }
+
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER typename tvec1<T, P>::bool_type isdenormal
+ (
+ tvec1<T, P> const & x
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+ return typename tvec1<T, P>::bool_type(
+ isdenormal(x.x));
+ }
+
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER typename tvec2<T, P>::bool_type isdenormal
+ (
+ tvec2<T, P> const & x
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+ return typename tvec2<T, P>::bool_type(
+ isdenormal(x.x),
+ isdenormal(x.y));
+ }
+
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER typename tvec3<T, P>::bool_type isdenormal
+ (
+ tvec3<T, P> const & x
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+ return typename tvec3<T, P>::bool_type(
+ isdenormal(x.x),
+ isdenormal(x.y),
+ isdenormal(x.z));
+ }
+
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER typename tvec4<T, P>::bool_type isdenormal
+ (
+ tvec4<T, P> const & x
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+ return typename tvec4<T, P>::bool_type(
+ isdenormal(x.x),
+ isdenormal(x.y),
+ isdenormal(x.z),
+ isdenormal(x.w));
+ }
+}//namespace glm