diff --git a/glm/detail/func_exponential.inl b/glm/detail/func_exponential.inl
index 854862b2..a1d656f9 100644
--- a/glm/detail/func_exponential.inl
+++ b/glm/detail/func_exponential.inl
@@ -84,61 +84,14 @@ namespace detail
 
 	// pow
 	using std::pow;
-
-/*
-	template <typename genType>
-	GLM_FUNC_QUALIFIER genType pow
-	(
-		genType const & x, 
-		genType const & y
-	)
-	{
-		GLM_STATIC_ASSERT(
-			std::numeric_limits<genType>::is_iec559,
-			"'pow' only accept floating-point inputs");
-
-		return std::pow(x, y);
-	}
-*/
-
 	VECTORIZE_VEC_VEC(pow)
 
 	// exp
 	using std::exp;
-
-/*
-	template <typename genType>
-	GLM_FUNC_QUALIFIER genType exp
-	(
-		genType const & x
-	)
-	{
-		GLM_STATIC_ASSERT(
-			std::numeric_limits<genType>::is_iec559,
-			"'exp' only accept floating-point inputs");
-
-		return std::exp(x);
-	}
-*/
-
 	VECTORIZE_VEC(exp)
 
 	// log
 	using std::log;
-/*
-	template <typename genType>
-	GLM_FUNC_QUALIFIER genType log
-	(
-		genType const & x
-	)
-	{
-		GLM_STATIC_ASSERT(
-			std::numeric_limits<genType>::is_iec559,
-			"'log' only accept floating-point inputs");
-
-		return std::log(x);
-	}
-*/
 	VECTORIZE_VEC(log)
 
 	//exp2, ln2 = 0.69314718055994530941723212145818f
@@ -211,27 +164,6 @@ namespace detail
 	
 	// sqrt
 	using std::sqrt;
-/*
-	GLM_FUNC_QUALIFIER float sqrt(float x)
-	{
-#		ifdef __CUDACC__ // Wordaround for a CUDA compiler bug up to CUDA6
-			tvec1<float, highp> tmp(detail::compute_sqrt<tvec1, float, highp>::call(x));
-			return tmp.x;
-#		else
-			return detail::compute_sqrt<tvec1, float, highp>::call(x).x;
-#		endif
-	}
-
-	GLM_FUNC_QUALIFIER double sqrt(double x)
-	{
-#		ifdef __CUDACC__ // Wordaround for a CUDA compiler bug up to CUDA6
-			tvec1<double, highp> tmp(detail::compute_sqrt<tvec1, double, highp>::call(x));
-			return tmp.x;
-#		else
-			return detail::compute_sqrt<tvec1, double, highp>::call(x).x;
-#		endif
-	}
-*/
 	template <typename T, precision P, template <typename, precision> class vecType>
 	GLM_FUNC_QUALIFIER vecType<T, P> sqrt(vecType<T, P> const & x)
 	{
diff --git a/glm/detail/type_vec4.hpp b/glm/detail/type_vec4.hpp
index 42dc5f2f..6f8b94ef 100644
--- a/glm/detail/type_vec4.hpp
+++ b/glm/detail/type_vec4.hpp
@@ -144,7 +144,7 @@ namespace glm
 		// Implicit basic constructors
 
 		GLM_FUNC_DECL tvec4();
-		GLM_FUNC_DECL tvec4(type const & v);
+		GLM_FUNC_DECL tvec4(tvec4<T, P> const & v);
 		template <precision Q>
 		GLM_FUNC_DECL tvec4(tvec4<T, Q> const & v);
 
diff --git a/glm/gtx/std_based_type.hpp b/glm/gtx/std_based_type.hpp
index 8b488c99..d7960d69 100644
--- a/glm/gtx/std_based_type.hpp
+++ b/glm/gtx/std_based_type.hpp
@@ -49,11 +49,15 @@ namespace glm
 {
 	/// @addtogroup gtx_std_based_type
 	/// @{
-	
+
+	/// Vector type based of one std::size_t component.
+	/// @see GLM_GTX_std_based_type
+	typedef tvec1<std::size_t, defaultp>		size1;
+
 	/// Vector type based of two std::size_t components.
 	/// @see GLM_GTX_std_based_type
 	typedef tvec2<std::size_t, defaultp>		size2;
-	
+
 	/// Vector type based of three std::size_t components.
 	/// @see GLM_GTX_std_based_type
 	typedef tvec3<std::size_t, defaultp>		size3;
@@ -62,14 +66,18 @@ namespace glm
 	/// @see GLM_GTX_std_based_type
 	typedef tvec4<std::size_t, defaultp>		size4;
 
+	/// Vector type based of one std::size_t component.
+	/// @see GLM_GTX_std_based_type
+	typedef tvec1<std::size_t, defaultp>		size1_t;
+
 	/// Vector type based of two std::size_t components.
 	/// @see GLM_GTX_std_based_type
 	typedef tvec2<std::size_t, defaultp>		size2_t;
-	
+
 	/// Vector type based of three std::size_t components.
 	/// @see GLM_GTX_std_based_type
 	typedef tvec3<std::size_t, defaultp>		size3_t;
-	
+
 	/// Vector type based of four std::size_t components.
 	/// @see GLM_GTX_std_based_type
 	typedef tvec4<std::size_t, defaultp>		size4_t;