diff --git a/glm/common.hpp b/glm/common.hpp
index f8c21e87..06763846 100644
--- a/glm/common.hpp
+++ b/glm/common.hpp
@@ -30,7 +30,7 @@ namespace glm
 	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
 	/// @see qualifier
 	template<typename genType>
-	GLM_FUNC_DECL GLM_CONSTEXPR_CXX11 genType abs(genType x);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 genType abs(genType x);
 
 	/// Returns x if x >= 0; otherwise, it returns -x.
 	///
@@ -41,7 +41,7 @@ namespace glm
 	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/abs.xml">GLSL abs man page</a>
 	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
 	template<length_t L, typename T, qualifier Q>
-	GLM_FUNC_DECL GLM_CONSTEXPR_CXX11 vec<L, T, Q> abs(vec<L, T, Q> const& x);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<L, T, Q> abs(vec<L, T, Q> const& x);
 
 	/// Returns 1.0 if x > 0, 0.0 if x == 0, or -1.0 if x < 0.
 	///
diff --git a/glm/detail/compute_common.hpp b/glm/detail/compute_common.hpp
index e8d80f4b..6f743b4e 100644
--- a/glm/detail/compute_common.hpp
+++ b/glm/detail/compute_common.hpp
@@ -13,7 +13,7 @@ namespace detail
 	template<typename genFIType>
 	struct compute_abs<genFIType, true>
 	{
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 static genFIType call(genFIType x)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static genFIType call(genFIType x)
 		{
 			GLM_STATIC_ASSERT(
 				std::numeric_limits<genFIType>::is_iec559 || std::numeric_limits<genFIType>::is_signed || GLM_UNRESTRICTED_GENTYPE,
@@ -28,7 +28,7 @@ namespace detail
 	template<>
 	struct compute_abs<float, true>
 	{
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 static float call(float x)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static float call(float x)
 		{
 			return fabsf(x);
 		}
@@ -38,7 +38,7 @@ namespace detail
 	template<typename genFIType>
 	struct compute_abs<genFIType, false>
 	{
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 static genFIType call(genFIType x)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static genFIType call(genFIType x)
 		{
 			GLM_STATIC_ASSERT(
 				(!std::numeric_limits<genFIType>::is_signed && std::numeric_limits<genFIType>::is_integer) || GLM_UNRESTRICTED_GENTYPE,
diff --git a/glm/detail/compute_vector_relational.hpp b/glm/detail/compute_vector_relational.hpp
index ea600b64..61f46437 100644
--- a/glm/detail/compute_vector_relational.hpp
+++ b/glm/detail/compute_vector_relational.hpp
@@ -10,7 +10,7 @@ namespace detail
 	template <typename T, bool isFloat>
 	struct compute_equal
 	{
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 static bool call(T a, T b)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static bool call(T a, T b)
 		{
 			return a == b;
 		}
@@ -19,7 +19,7 @@ namespace detail
 	template <typename T>
 	struct compute_equal<T, true>
 	{
-		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 static bool call(T a, T b)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static bool call(T a, T b)
 		{
 			return detail::compute_abs<T, std::numeric_limits<T>::is_signed>::call(b - a) <= static_cast<T>(0);
 			//return std::memcmp(&a, &b, sizeof(T)) == 0;
diff --git a/glm/detail/func_common.inl b/glm/detail/func_common.inl
index e9c4562d..9d6d04a6 100644
--- a/glm/detail/func_common.inl
+++ b/glm/detail/func_common.inl
@@ -30,7 +30,7 @@ namespace glm
 
 	// abs
 	template<>
-	GLM_FUNC_QUALIFIER int32 abs(int32 x)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 int32 abs(int32 x)
 	{
 		int32 const y = x >> 31;
 		return (x ^ y) - y;
@@ -266,13 +266,13 @@ namespace detail
 }//namespace detail
 
 	template<typename genFIType>
-	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 genFIType abs(genFIType x)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 genFIType abs(genFIType x)
 	{
 		return detail::compute_abs<genFIType, std::numeric_limits<genFIType>::is_signed>::call(x);
 	}
 
 	template<length_t L, typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 vec<L, T, Q> abs(vec<L, T, Q> const& x)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<L, T, Q> abs(vec<L, T, Q> const& x)
 	{
 		return detail::compute_abs_vector<L, T, Q, detail::is_aligned<Q>::value>::call(x);
 	}
diff --git a/glm/detail/type_vec1.inl b/glm/detail/type_vec1.inl
index 0c97646d..f1a671f8 100644
--- a/glm/detail/type_vec1.inl
+++ b/glm/detail/type_vec1.inl
@@ -527,25 +527,25 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator==(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator==(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2)
 	{
 		return detail::compute_equal<T, std::numeric_limits<T>::is_iec559>::call(v1.x, v2.x);
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator!=(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator!=(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2)
 	{
 		return !(v1 == v2);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<1, bool, Q> operator&&(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<1, bool, Q> operator&&(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2)
 	{
 		return vec<1, bool, Q>(v1.x && v2.x);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<1, bool, Q> operator||(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<1, bool, Q> operator||(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2)
 	{
 		return vec<1, bool, Q>(v1.x || v2.x);
 	}
diff --git a/glm/detail/type_vec2.hpp b/glm/detail/type_vec2.hpp
index 178868c5..a8b69b3d 100644
--- a/glm/detail/type_vec2.hpp
+++ b/glm/detail/type_vec2.hpp
@@ -361,16 +361,16 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator==(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator==(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2);
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator!=(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator!=(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<2, bool, Q> operator&&(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<2, bool, Q> operator&&(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<2, bool, Q> operator||(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<2, bool, Q> operator||(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2);
 }//namespace glm
 
 #ifndef GLM_EXTERNAL_TEMPLATE
diff --git a/glm/detail/type_vec2.inl b/glm/detail/type_vec2.inl
index ec589001..82f8ebe1 100644
--- a/glm/detail/type_vec2.inl
+++ b/glm/detail/type_vec2.inl
@@ -873,7 +873,7 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator==(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator==(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2)
 	{
 		return
 			detail::compute_equal<T, std::numeric_limits<T>::is_iec559>::call(v1.x, v2.x) &&
@@ -881,19 +881,19 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator!=(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator!=(vec<2, T, Q> const& v1, vec<2, T, Q> const& v2)
 	{
 		return !(v1 == v2);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<2, bool, Q> operator&&(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<2, bool, Q> operator&&(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2)
 	{
 		return vec<2, bool, Q>(v1.x && v2.x, v1.y && v2.y);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<2, bool, Q> operator||(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<2, bool, Q> operator||(vec<2, bool, Q> const& v1, vec<2, bool, Q> const& v2)
 	{
 		return vec<2, bool, Q>(v1.x || v2.x, v1.y || v2.y);
 	}
diff --git a/glm/detail/type_vec3.hpp b/glm/detail/type_vec3.hpp
index 26627138..0e854879 100644
--- a/glm/detail/type_vec3.hpp
+++ b/glm/detail/type_vec3.hpp
@@ -391,16 +391,16 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL GLM_CONSTEXPR_CXX11 bool operator==(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator==(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2);
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL GLM_CONSTEXPR_CXX11 bool operator!=(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator!=(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<3, bool, Q> operator&&(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<3, bool, Q> operator&&(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<3, bool, Q> operator||(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<3, bool, Q> operator||(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2);
 }//namespace glm
 
 #ifndef GLM_EXTERNAL_TEMPLATE
diff --git a/glm/detail/type_vec3.inl b/glm/detail/type_vec3.inl
index 580006c4..26fd12af 100644
--- a/glm/detail/type_vec3.inl
+++ b/glm/detail/type_vec3.inl
@@ -1021,7 +1021,7 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 bool operator==(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator==(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2)
 	{
 		return
 			detail::compute_equal<T, std::numeric_limits<T>::is_iec559>::call(v1.x, v2.x) &&
@@ -1030,19 +1030,19 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX11 bool operator!=(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator!=(vec<3, T, Q> const& v1, vec<3, T, Q> const& v2)
 	{
 		return !(v1 == v2);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<3, bool, Q> operator&&(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<3, bool, Q> operator&&(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2)
 	{
 		return vec<3, bool, Q>(v1.x && v2.x, v1.y && v2.y, v1.z && v2.z);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<3, bool, Q> operator||(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<3, bool, Q> operator||(vec<3, bool, Q> const& v1, vec<3, bool, Q> const& v2)
 	{
 		return vec<3, bool, Q>(v1.x || v2.x, v1.y || v2.y, v1.z || v2.z);
 	}
diff --git a/glm/detail/type_vec4.hpp b/glm/detail/type_vec4.hpp
index 7633bd16..2de274cf 100644
--- a/glm/detail/type_vec4.hpp
+++ b/glm/detail/type_vec4.hpp
@@ -466,16 +466,16 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator==(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator==(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2);
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator!=(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator!=(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> operator&&(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<4, bool, Q> operator&&(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> operator||(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<4, bool, Q> operator||(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2);
 }//namespace glm
 
 #ifndef GLM_EXTERNAL_TEMPLATE
diff --git a/glm/detail/type_vec4.inl b/glm/detail/type_vec4.inl
index 840ef306..a465ab6b 100644
--- a/glm/detail/type_vec4.inl
+++ b/glm/detail/type_vec4.inl
@@ -127,7 +127,7 @@ namespace detail
 	template<typename T, qualifier Q, int IsInt, std::size_t Size, bool Aligned>
 	struct compute_vec4_equal
 	{
-		GLM_FUNC_QUALIFIER static bool call(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static bool call(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
 		{
 			return
 				detail::compute_equal<T, std::numeric_limits<T>::is_iec559>::call(v1.x, v2.x) &&
@@ -140,7 +140,7 @@ namespace detail
 	template<typename T, qualifier Q, int IsInt, std::size_t Size, bool Aligned>
 	struct compute_vec4_nequal
 	{
-		GLM_FUNC_QUALIFIER static bool call(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
+		GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 static bool call(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
 		{
 			return !compute_vec4_equal<T, Q, detail::is_int<T>::value, sizeof(T) * 8, detail::is_aligned<Q>::value>::call(v1, v2);
 		}
@@ -1118,25 +1118,25 @@ namespace detail
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator==(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator==(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
 	{
 		return detail::compute_vec4_equal<T, Q, detail::is_int<T>::value, sizeof(T) * 8, detail::is_aligned<Q>::value>::call(v1, v2);
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER bool operator!=(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 bool operator!=(vec<4, T, Q> const& v1, vec<4, T, Q> const& v2)
 	{
 		return detail::compute_vec4_nequal<T, Q, detail::is_int<T>::value, sizeof(T) * 8, detail::is_aligned<Q>::value>::call(v1, v2);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> operator&&(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<4, bool, Q> operator&&(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2)
 	{
 		return vec<4, bool, Q>(v1.x && v2.x, v1.y && v2.y, v1.z && v2.z, v1.w && v2.w);
 	}
 
 	template<qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> operator||(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR_CXX14 vec<4, bool, Q> operator||(vec<4, bool, Q> const& v1, vec<4, bool, Q> const& v2)
 	{
 		return vec<4, bool, Q>(v1.x || v2.x, v1.y || v2.y, v1.z || v2.z, v1.w || v2.w);
 	}
diff --git a/glm/ext/vec1.hpp b/glm/ext/vec1.hpp
index d2e792c7..2379e590 100644
--- a/glm/ext/vec1.hpp
+++ b/glm/ext/vec1.hpp
@@ -285,16 +285,16 @@ namespace glm
 	// -- Boolean operators --
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator==(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator==(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2);
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL bool operator!=(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 bool operator!=(vec<1, T, Q> const& v1, vec<1, T, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<1, bool, Q> operator&&(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<1, bool, Q> operator&&(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2);
 
 	template<qualifier Q>
-	GLM_FUNC_DECL vec<1, bool, Q> operator||(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2);
+	GLM_FUNC_DECL GLM_CONSTEXPR_CXX14 vec<1, bool, Q> operator||(vec<1, bool, Q> const& v1, vec<1, bool, Q> const& v2);
 
 	/// 1 component vector of single-precision floating-point numbers using high precision arithmetic in term of ULPs.
 	///
diff --git a/test/core/core_func_common.cpp b/test/core/core_func_common.cpp
index 72776238..ef36006a 100644
--- a/test/core/core_func_common.cpp
+++ b/test/core/core_func_common.cpp
@@ -1291,10 +1291,13 @@ namespace ldexp_
 
 static int test_constexpr()
 {
-#if GLM_HAS_CONSTEXPR_CXX11
+#if GLM_HAS_CONSTEXPR_CXX14
 	static_assert(glm::abs(1.0f) > 0.0f, "GLM: Failed constexpr");
+	static_assert(glm::abs(glm::vec1(1.0f)) != glm::vec1(0.0f), "GLM: Failed constexpr");
+	static_assert(glm::abs(glm::vec2(1.0f)) != glm::vec2(0.0f), "GLM: Failed constexpr");
 	static_assert(glm::abs(glm::vec3(1.0f)) != glm::vec3(0.0f), "GLM: Failed constexpr");
-#endif // GLM_HAS_CONSTEXPR_CXX11
+	static_assert(glm::abs(glm::vec4(1.0f)) != glm::vec4(0.0f), "GLM: Failed constexpr");
+#endif // GLM_HAS_CONSTEXPR_CXX14
 
 	return 0;
 }
diff --git a/test/core/core_type_vec1.cpp b/test/core/core_type_vec1.cpp
index 349a3697..8f65465a 100644
--- a/test/core/core_type_vec1.cpp
+++ b/test/core/core_type_vec1.cpp
@@ -137,6 +137,16 @@ static int test_vec1_operator_increment()
 	return Error;
 }
 
+static int test_constexpr()
+{
+#if GLM_HAS_CONSTEXPR_CXX14
+	static_assert(glm::vec1::length() == 1, "GLM: Failed constexpr");
+	static_assert(glm::vec1(1.0f).x > 0.0f, "GLM: Failed constexpr");
+#endif
+
+	return 0;
+}
+
 int main()
 {
 	int Error = 0;
@@ -145,6 +155,7 @@ int main()
 	Error += test_vec1_ctor();
 	Error += test_vec1_operators();
 	Error += test_vec1_operator_increment();
+	Error += test_constexpr();
 	
 	return Error;
 }
diff --git a/test/core/core_type_vec2.cpp b/test/core/core_type_vec2.cpp
index c1a75d82..d2832f5b 100644
--- a/test/core/core_type_vec2.cpp
+++ b/test/core/core_type_vec2.cpp
@@ -347,7 +347,7 @@ static int test_operator_increment()
 
 static int test_constexpr()
 {
-#if GLM_HAS_CONSTEXPR_CXX11
+#if GLM_HAS_CONSTEXPR_CXX14
 	static_assert(glm::vec2::length() == 2, "GLM: Failed constexpr");
 	static_assert(glm::vec2(1.0f).x > 0.0f, "GLM: Failed constexpr");
 	static_assert(glm::vec2(1.0f, -1.0f).x > 0.0f, "GLM: Failed constexpr");
diff --git a/test/core/core_type_vec3.cpp b/test/core/core_type_vec3.cpp
index ff3d275e..0fe2efe7 100644
--- a/test/core/core_type_vec3.cpp
+++ b/test/core/core_type_vec3.cpp
@@ -564,7 +564,7 @@ static int test_operator_increment()
 
 static int test_constexpr()
 {
-#if GLM_HAS_CONSTEXPR_CXX11
+#if GLM_HAS_CONSTEXPR_CXX14
 	static_assert(glm::vec3::length() == 3, "GLM: Failed constexpr");
 	static_assert(glm::vec3(1.0f).x > 0.0f, "GLM: Failed constexpr");
 	static_assert(glm::vec3(1.0f) == glm::vec3(1.0f), "GLM: Failed constexpr");
diff --git a/test/core/core_type_vec4.cpp b/test/core/core_type_vec4.cpp
index b6883439..b12ecfe3 100644
--- a/test/core/core_type_vec4.cpp
+++ b/test/core/core_type_vec4.cpp
@@ -711,10 +711,10 @@ static int test_inheritance()
 
 static int test_constexpr()
 {
-#if GLM_HAS_CONSTEXPR_CXX11
+#if GLM_HAS_CONSTEXPR_CXX14
 	static_assert(glm::vec4::length() == 4, "GLM: Failed constexpr");
 	static_assert(glm::vec4(1.0f).x > 0.0f, "GLM: Failed constexpr");
-	//static_assert(glm::vec4(1.0f) == glm::vec4(1.0f), "GLM: Failed constexpr");
+	static_assert(glm::vec4(1.0f) == glm::vec4(1.0f), "GLM: Failed constexpr");
 	static_assert(glm::vec4(1.0f, -1.0f, -1.0f, -1.0f).x > 0.0f, "GLM: Failed constexpr");
 	static_assert(glm::vec4(1.0f, -1.0f, -1.0f, -1.0f).y < 0.0f, "GLM: Failed constexpr");
 #endif