diff --git a/test/gtc/gtc_half_float.cpp b/test/gtc/gtc_half_float.cpp
index f506e941..ec34d6f0 100644
--- a/test/gtc/gtc_half_float.cpp
+++ b/test/gtc/gtc_half_float.cpp
@@ -90,41 +90,211 @@ int test_half_ctor_mat2x3()
 {
 	int Error = 0;
 	
-	return Error;
+	{
+		glm::hvec3 A(1, 2, 3);
+		glm::hvec3 B(4, 5, 6);
+		glm::hmat2x3 C(A, B);
+		glm::hmat2x3 D(1, 2, 3, 4, 5, 6);
+		
+		Error += C[0] == D[0] ? 0 : 1;
+		Error += C[1] == D[1] ? 0 : 1;
+	}
+	
+	{
+		glm::hvec3 A(1.0, 2.0f, 3u);
+		glm::hvec3 B(4, 5u, 6u);
+		glm::hmat2x3 C(A, B);
+		glm::hmat2x3 D(1, 2.0, 3u, 4.0f, 5.0, 6);
+		
+		Error += C[0] == D[0] ? 0 : 1;
+		Error += C[1] == D[1] ? 0 : 1;
+	}
+	
+	{
+		glm::hmat2x3 A(1);
+		glm::mat2x3 B(1);
+		glm::hmat2x3 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
+    return Error;
 }
 
 int test_half_ctor_mat2x4()
 {
 	int Error = 0;
 	
-	return Error;
+	{
+		glm::hvec4 A(1, 2, 3, 4);
+		glm::hvec4 B(5, 6, 7, 8);
+		glm::hmat2x4 C(A, B);
+		glm::hmat2x4 D(1, 2, 3, 4, 5, 6, 7, 8);
+		
+		Error += C[0] == D[0] ? 0 : 1;
+		Error += C[1] == D[1] ? 0 : 1;
+	}
+	
+	{
+		glm::hvec4 A(1.0, 2.0f, 3u, 4u);
+		glm::hvec4 B(5u, 6u, 7.0, 8.0);
+		glm::hmat2x4 C(A, B);
+		glm::hmat2x4 D(1, 2.0, 3u, 4.0f, 5.0, 6, 7.0f, 8.0f);
+		
+		Error += C[0] == D[0] ? 0 : 1;
+		Error += C[1] == D[1] ? 0 : 1;
+	}
+	
+	{
+		glm::hmat2x4 A(1);
+		glm::mat2x4 B(1);
+		glm::hmat2x4 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
+    return Error;
 }
 
 int test_half_ctor_mat3x2()
 {
 	int Error = 0;
 	
-	return Error;
+	{
+		glm::hvec2 A(1, 2);
+		glm::hvec2 B(3, 4);
+		glm::hvec2 C(5, 6);
+		glm::hmat3x2 M(A, B, C);
+		glm::hmat3x2 N(1, 2, 3, 4, 5, 6);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec2 A(1, 2.0);
+		glm::hvec2 B(3, 4.0f);
+		glm::hvec2 C(5u, 6.0f);
+		glm::hmat3x2 M(A, B, C);
+		glm::hmat3x2 N(1, 2.0, 3u, 4.0f, 5, 6);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat3x2 A(1);
+		glm::mat3x2 B(1);
+		glm::hmat3x2 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
+    return Error;
 }
 
 int test_half_ctor_mat3x3()
 {
 	int Error = 0;
 	
-	return Error;
+	{
+		glm::hvec3 A(1, 2, 3);
+		glm::hvec3 B(4, 5, 6);
+		glm::hvec3 C(7, 8, 9);
+		glm::hmat3x3 M(A, B, C);
+		glm::hmat3x3 N(1, 2, 3, 4, 5, 6, 7, 8, 9);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec3 A(1, 2.0, 3.0f);
+		glm::hvec3 B(4, 5.0f, 6.0);
+		glm::hvec3 C(7u, 8.0f, 9);
+		glm::hmat3x3 M(A, B, C);
+		glm::hmat3x3 N(1, 2.0, 3u, 4.0f, 5, 6, 7.0f, 8.0, 9u);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat3x3 A(1);
+		glm::mat3x3 B(1);
+		glm::hmat3x3 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
+    return Error;
 }
 
 int test_half_ctor_mat3x4()
 {
 	int Error = 0;
 	
-	return Error;
+	{
+		glm::hvec4 A(1, 2, 3, 4);
+		glm::hvec4 B(5, 6, 7, 8);
+		glm::hvec4 C(9, 10, 11, 12);
+		glm::hmat3x4 M(A, B, C);
+		glm::hmat3x4 N(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec4 A(1, 2.0, 3.0f, 4u);
+		glm::hvec4 B(5, 6.0f, 7.0, 8);
+		glm::hvec4 C(9u, 10.0f, 11, 12.f);
+		glm::hmat3x4 M(A, B, C);
+		glm::hmat3x4 N(1, 2.0, 3u, 4.0f, 5, 6, 7.0f, 8.0, 9u, 10, 11.f, 12.0);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat3x4 A(1);
+		glm::mat3x4 B(1);
+		glm::hmat3x4 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
+    return Error;
 }
 
 int test_half_ctor_mat4x2()
 {
 	int Error = 0;
 	
+	{
+		glm::hvec2 A(1, 2);
+		glm::hvec2 B(3, 4);
+		glm::hvec2 C(5, 6);
+		glm::hvec2 D(7, 8);
+		glm::hmat4x2 M(A, B, C, D);
+		glm::hmat4x2 N(1, 2, 3, 4, 5, 6, 7, 8);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec2 A(1, 2.0);
+		glm::hvec2 B(3.0f, 4);
+		glm::hvec2 C(5.0, 6u);
+		glm::hvec2 D(7, 8u);
+		glm::hmat4x2 M(A, B, C, D);
+		glm::hmat4x2 N(1, 2.0, 3u, 4.0f, 5u, 6.0, 7, 8.0f);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat4x2 A(1);
+		glm::mat4x2 B(1);
+		glm::hmat4x2 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
 	return Error;
 }
 
@@ -132,6 +302,36 @@ int test_half_ctor_mat4x3()
 {
 	int Error = 0;
 	
+	{
+		glm::hvec3 A(1, 2, 3);
+		glm::hvec3 B(4, 5, 6);
+		glm::hvec3 C(7, 8, 9);
+		glm::hvec3 D(10, 11, 12);
+		glm::hmat4x3 M(A, B, C, D);
+		glm::hmat4x3 N(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec3 A(1, 2.0, 3u);
+		glm::hvec3 B(4.0f, 5, 6u);
+		glm::hvec3 C(7.0, 8u, 9.f);
+		glm::hvec3 D(10, 11u, 12.0);
+		glm::hmat4x3 M(A, B, C, D);
+		glm::hmat4x3 N(1, 2.0, 3u, 4.0f, 5u, 6.0, 7, 8.0f, 9, 10u, 11.f, 12.0);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat4x3 A(1);
+		glm::mat4x3 B(1);
+		glm::hmat4x3 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
 	return Error;
 }
 
@@ -139,6 +339,36 @@ int test_half_ctor_mat4x4()
 {
 	int Error = 0;
 	
+	{
+		glm::hvec4 A(1, 2, 3, 4);
+		glm::hvec4 B(5, 6, 7, 8);
+		glm::hvec4 C(9, 10, 11, 12);
+		glm::hvec4 D(13, 14, 15, 16);
+		glm::hmat4x4 M(A, B, C, D);
+		glm::hmat4x4 N(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hvec4 A(1, 2.0, 3u, 4);
+		glm::hvec4 B(5.0f, 6, 7u, 8.0);
+		glm::hvec4 C(9.0, 10u, 11.f, 12);
+		glm::hvec4 D(13, 14u, 15.0, 16u);
+		glm::hmat4x4 M(A, B, C, D);
+		glm::hmat4x4 N(1, 2.0, 3u, 4.0f, 5u, 6.0, 7, 8.0f, 9, 10u, 11.f, 12.0, 13, 14u, 15.0f, 16.0);
+		
+		Error += M == N ? 0 : 1;
+	}
+	
+	{
+		glm::hmat4x4 A(1);
+		glm::mat4x4 B(1);
+		glm::hmat4x4 C(A);
+		
+		Error += A == C ? 0 : 1;
+	}
+	
 	return Error;
 }
 
@@ -288,6 +518,14 @@ int main()
 	Error += test_half_ctor_vec3();
 	Error += test_half_ctor_vec4();
 	Error += test_half_ctor_mat2x2();
+	Error += test_half_ctor_mat2x3();
+	Error += test_half_ctor_mat2x4();
+	Error += test_half_ctor_mat3x2();
+	Error += test_half_ctor_mat3x3();
+	Error += test_half_ctor_mat3x4();
+	Error += test_half_ctor_mat4x2();
+	Error += test_half_ctor_mat4x3();
+	Error += test_half_ctor_mat4x4();
 	Error += test_half_precision_scalar();
 	Error += test_half_precision_vec();
 	Error += test_half_precision_mat();