Vecs and tests

4 files changed, 873 insertions, 1 deletions

diff --git a/tests/un/math.c b/tests/un/math.c
index 6cc7cd8..eab0dcb 100644
--- a/tests/un/math.c
+++ b/tests/un/math.c
@@ -1,5 +1,37 @@
 #include <ungrateful.h>
 
-int main(void) {
+int main() {
+    // Lerping
+    {
+        f64 d;
+        real r;
+        f32 f;
+        
+        r = un_m_lerpr(1.0f, 2.0f, 0.5f);
+        assert(fabs(r - 1.5f) < EPSILON);
+        
+        f = un_m_lerpf(1.0f, 2.0f, 0.5f);
+        assert(fabsf(f - 1.5f) < EPSILON);
+        
+        d = un_m_lerpd(1.0, 2.0, 0.5);
+        assert(fabs(d - 1.5) < 0.000001);
+    }
 
+    // Test Bezier curve functions
+    {
+        f64 d;
+        real r;
+        f32 f;
+
+        un_m_bezierf(&f, 0.0f, 1.0f, 2.0f, 3.0f, 0.5f);
+        assert(fabsf(f - 1.5f) < EPSILON);
+
+        un_m_bezierd(&d, 0.0, 1.0, 2.0, 3.0, 0.5);
+        assert(fabs(d - 1.5) < EPSILON);
+
+        un_m_bezierr(&r, 0.0, 1.0, 2.0, 3.0, 0.5);
+        assert(fabs(r - 1.5) < EPSILON);
+    }
+
+    return 0;
 }
diff --git a/tests/un/mathd.c b/tests/un/mathd.c
new file mode 100644
index 0000000..3381dfb
--- /dev/null
+++ b/tests/un/mathd.c
@@ -0,0 +1,280 @@
+#include <ungrateful.h>
+
+int main() {
+    /* 2d */
+    {
+        f64 a[2] = {1.0, 2.0};
+        f64 b[2] = {3.0, 4.0};
+        f64 n[2] = {0.0, 1.0};
+        f64 v[2];
+
+        un_m_add2d(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub2d(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_add_scalar2d(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub_scalar2d(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_mul_scalar2d(v, a, 2);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_div_scalar2d(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_dot2d(v, a, b);
+        assert(fabs(v[0] - 11.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_hadamard2d(v, a, b);
+        assert(fabs(v[0] - 3.0) < EPSILON);
+        assert(fabs(v[1] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_project2d(v, a, b);
+        assert(fabs(v[0] - 1.32) < EPSILON);
+        assert(fabs(v[1] - 1.76) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_cross2d(v, a);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] + 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude2d(v, b);
+        assert(fabs(v[0] - 5.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude_sqr2d(v, b);
+        assert(fabs(v[0] - 25.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance2d(v, a, b);
+        assert(fabs(v[0] - sqrt(8.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance_sqr2d(v, a, b);
+        assert(fabs(v[0] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_normalize2d(v, b);
+        assert(fabs(v[0] - 0.6) < EPSILON);
+        assert(fabs(v[1] - 0.8) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_reflect2d(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+    }
+
+    /* 3d */
+    {
+        f64 a[3] = {1.0, 2.0, 3.0};
+        f64 b[3] = {3.0, 4.0, 5.0};
+        f64 n[3] = {0.0, 1.0, 0.0};
+        f64 v[3];
+
+        un_m_add3d(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        assert(fabs(v[2] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub3d(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_add_scalar3d(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        assert(fabs(v[2] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub_scalar3d(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_mul_scalar3d(v, a, 2);
+        assert(fabs(v[0] - 2.0)  < EPSILON);
+        assert(fabs(v[1] - 4.0)  < EPSILON);
+        assert(fabs(v[2] - 6.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_div_scalar3d(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 1.5) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_dot3d(v, a, b);
+        assert(fabs(v[0] - 26.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_hadamard3d(v, a, b);
+        assert(fabs(v[0] - 3.0)  < EPSILON);
+        assert(fabs(v[1] - 8.0)  < EPSILON);
+        assert(fabs(v[2] - 15.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_project3d(v, a, b);
+        assert(fabs(v[0] - 1.56) < EPSILON);
+        assert(fabs(v[1] - 2.08) < EPSILON);
+        assert(fabs(v[2] - 2.6) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_cross3d(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] - 4.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude3d(v, b);
+        assert(fabs(v[0] - sqrt(50.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude_sqr3d(v, b);
+        assert(fabs(v[0] - 50.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance3d(v, a, b);
+        assert(fabs(v[0] - sqrt(12.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance_sqr3d(v, a, b);
+        assert(fabs(v[0] - 12.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_normalize3d(v, b);
+        assert(fabs(v[0] - 0.424264) < EPSILON);
+        assert(fabs(v[1] - 0.565685) < EPSILON);
+        assert(fabs(v[2] - 0.707107) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_reflect3d(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        assert(fabs(v[2] + a[2]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+    }
+
+    /* 4d */
+    {
+        f64 a[4] = {1.0, 2.0, 3.0, 4.0};
+        f64 b[4] = {3.0, 4.0, 5.0, 6.0};
+        f64 n[4] = {0.0, 1.0, 0.0, 0.0};
+        f64 v[4];
+
+        un_m_add4d(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        assert(fabs(v[2] - 8.0) < EPSILON);
+        assert(fabs(v[3] - 10.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub4d(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        assert(fabs(v[3] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_add_scalar4d(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        assert(fabs(v[2] - 4.0) < EPSILON);
+        assert(fabs(v[3] - 5.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub_scalar4d(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 2.0) < EPSILON);
+        assert(fabs(v[3] - 3.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_mul_scalar4d(v, a, 2);
+        assert(fabs(v[0] - 2.0)  < EPSILON);
+        assert(fabs(v[1] - 4.0)  < EPSILON);
+        assert(fabs(v[2] - 6.0) < EPSILON);
+        assert(fabs(v[3] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_div_scalar4d(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 1.5) < EPSILON);
+        assert(fabs(v[3] - 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_dot4d(v, a, b);
+        assert(fabs(v[0] - 50.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_hadamard4d(v, a, b);
+        assert(fabs(v[0] - 3.0)  < EPSILON);
+        assert(fabs(v[1] - 8.0)  < EPSILON);
+        assert(fabs(v[2] - 15.0) < EPSILON);
+        assert(fabs(v[3] - 24.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_project4d(v, a, b);
+        assert(fabs(v[0] - 1.744186) < EPSILON);
+        assert(fabs(v[1] - 2.325581) < EPSILON);
+        assert(fabs(v[2] - 2.906976) < EPSILON);
+        assert(fabs(v[3] - 3.488372) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude4d(v, b);
+        assert(fabs(v[0] - sqrt(86.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude_sqr4d(v, b);
+        assert(fabs(v[0] - 86.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance4d(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance_sqr4d(v, a, b);
+        assert(fabs(v[0] - 16.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_normalize4d(v, b);
+        assert(fabs(v[0] - 0.323498) < EPSILON);
+        assert(fabs(v[1] - 0.431331) < EPSILON);
+        assert(fabs(v[2] - 0.539164) < EPSILON);
+        assert(fabs(v[3] - 0.646997) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_reflect4d(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        assert(fabs(v[2] + a[2]) < EPSILON);
+        assert(fabs(v[3] + a[3]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+    }
+
+    return 0;
+}
diff --git a/tests/un/mathf.c b/tests/un/mathf.c
new file mode 100644
index 0000000..cd3a24f
--- /dev/null
+++ b/tests/un/mathf.c
@@ -0,0 +1,280 @@
+#include <ungrateful.h>
+
+int main() {
+    /* 2d */
+    {
+        f32 a[2] = {1.0f, 2.0f};
+        f32 b[2] = {3.0f, 4.0f};
+        f32 n[2] = {0.0f, 1.0f};
+        f32 v[2];
+
+        un_m_add2f(v, a, b);
+        assert(fabsf(v[0] - 4.0f) < EPSILON);
+        assert(fabsf(v[1] - 6.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub2f(v, a, b);
+        assert(fabsf(v[0] + 2.0f) < EPSILON);
+        assert(fabsf(v[1] + 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_add_scalar2f(v, a, 1);
+        assert(fabsf(v[0] - 2.0f) < EPSILON);
+        assert(fabsf(v[1] - 3.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub_scalar2f(v, a, 1);
+        assert(fabsf(v[0])        < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_mul_scalar2f(v, a, 2);
+        assert(fabsf(v[0] - 2.0f) < EPSILON);
+        assert(fabsf(v[1] - 4.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_div_scalar2f(v, a, 2);
+        assert(fabsf(v[0] - 0.5f) < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_dot2f(v, a, b);
+        assert(fabsf(v[0] - 11.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_hadamard2f(v, a, b);
+        assert(fabsf(v[0] - 3.0f) < EPSILON);
+        assert(fabsf(v[1] - 8.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_project2f(v, a, b);
+        assert(fabsf(v[0] - 1.32f) < EPSILON);
+        assert(fabsf(v[1] - 1.76f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_cross2f(v, a);
+        assert(fabsf(v[0] - 2.0f) < EPSILON);
+        assert(fabsf(v[1] + 1.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude2f(v, b);
+        assert(fabsf(v[0] - 5.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude_sqr2f(v, b);
+        assert(fabsf(v[0] - 25.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance2f(v, a, b);
+        assert(fabsf(v[0] - sqrtf(8.0f)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance_sqr2f(v, a, b);
+        assert(fabsf(v[0] - 8.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_normalize2f(v, b);
+        assert(fabsf(v[0] - 0.6f) < EPSILON);
+        assert(fabsf(v[1] - 0.8f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_reflect2f(v, a, n);
+        assert(fabsf(v[0] + a[0]) < EPSILON);
+        assert(fabsf(v[1] - a[1]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+    }
+
+    /* 3d */
+    {
+        f32 a[3] = {1.0f, 2.0f, 3.0f};
+        f32 b[3] = {3.0f, 4.0f, 5.0f};
+        f32 n[3] = {0.0f, 1.0f, 0.0f};
+        f32 v[3];
+
+        un_m_add3f(v, a, b);
+        assert(fabsf(v[0] - 4.0f) < EPSILON);
+        assert(fabsf(v[1] - 6.0f) < EPSILON);
+        assert(fabsf(v[2] - 8.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub3f(v, a, b);
+        assert(fabsf(v[0] + 2.0f) < EPSILON);
+        assert(fabsf(v[1] + 2.0f) < EPSILON);
+        assert(fabsf(v[2] + 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_add_scalar3f(v, a, 1);
+        assert(fabsf(v[0] - 2.0f) < EPSILON);
+        assert(fabsf(v[1] - 3.0f) < EPSILON);
+        assert(fabsf(v[2] - 4.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub_scalar3f(v, a, 1);
+        assert(fabsf(v[0])        < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        assert(fabsf(v[2] - 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_mul_scalar3f(v, a, 2);
+        assert(fabsf(v[0] - 2.0f)  < EPSILON);
+        assert(fabsf(v[1] - 4.0f)  < EPSILON);
+        assert(fabsf(v[2] - 6.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_div_scalar3f(v, a, 2);
+        assert(fabsf(v[0] - 0.5f) < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        assert(fabsf(v[2] - 1.5f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_dot3f(v, a, b);
+        assert(fabsf(v[0] - 26.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_hadamard3f(v, a, b);
+        assert(fabsf(v[0] - 3.0f)  < EPSILON);
+        assert(fabsf(v[1] - 8.0f)  < EPSILON);
+        assert(fabsf(v[2] - 15.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_project3f(v, a, b);
+        assert(fabsf(v[0] - 1.56f) < EPSILON);
+        assert(fabsf(v[1] - 2.08f) < EPSILON);
+        assert(fabsf(v[2] - 2.6f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_cross3f(v, a, b);
+        assert(fabsf(v[0] + 2.0f) < EPSILON);
+        assert(fabsf(v[1] - 4.0f) < EPSILON);
+        assert(fabsf(v[2] + 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude3f(v, b);
+        assert(fabsf(v[0] - sqrtf(50.0f)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude_sqr3f(v, b);
+        assert(fabsf(v[0] - 50.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance3f(v, a, b);
+        assert(fabsf(v[0] - sqrtf(12.0f)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance_sqr3f(v, a, b);
+        assert(fabsf(v[0] - 12.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_normalize3f(v, b);
+        assert(fabsf(v[0] - 0.424264f) < EPSILON);
+        assert(fabsf(v[1] - 0.565685f) < EPSILON);
+        assert(fabsf(v[2] - 0.707107f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_reflect3f(v, a, n);
+        assert(fabsf(v[0] + a[0]) < EPSILON);
+        assert(fabsf(v[1] - a[1]) < EPSILON);
+        assert(fabsf(v[2] + a[2]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+    }
+
+    /* 4d */
+    {
+        f32 a[4] = {1.0f, 2.0f, 3.0f, 4.0f};
+        f32 b[4] = {3.0f, 4.0f, 5.0f, 6.0f};
+        f32 n[4] = {0.0f, 1.0f, 0.0f, 0.0f};
+        f32 v[4];
+
+        un_m_add4f(v, a, b);
+        assert(fabsf(v[0] - 4.0f) < EPSILON);
+        assert(fabsf(v[1] - 6.0f) < EPSILON);
+        assert(fabsf(v[2] - 8.0f) < EPSILON);
+        assert(fabsf(v[3] - 10.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub4f(v, a, b);
+        assert(fabsf(v[0] + 2.0f) < EPSILON);
+        assert(fabsf(v[1] + 2.0f) < EPSILON);
+        assert(fabsf(v[2] + 2.0f) < EPSILON);
+        assert(fabsf(v[3] + 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_add_scalar4f(v, a, 1);
+        assert(fabsf(v[0] - 2.0f) < EPSILON);
+        assert(fabsf(v[1] - 3.0f) < EPSILON);
+        assert(fabsf(v[2] - 4.0f) < EPSILON);
+        assert(fabsf(v[3] - 5.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub_scalar4f(v, a, 1);
+        assert(fabsf(v[0])        < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        assert(fabsf(v[2] - 2.0f) < EPSILON);
+        assert(fabsf(v[3] - 3.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_mul_scalar4f(v, a, 2);
+        assert(fabsf(v[0] - 2.0f)  < EPSILON);
+        assert(fabsf(v[1] - 4.0f)  < EPSILON);
+        assert(fabsf(v[2] - 6.0f) < EPSILON);
+        assert(fabsf(v[3] - 8.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_div_scalar4f(v, a, 2);
+        assert(fabsf(v[0] - 0.5f) < EPSILON);
+        assert(fabsf(v[1] - 1.0f) < EPSILON);
+        assert(fabsf(v[2] - 1.5f) < EPSILON);
+        assert(fabsf(v[3] - 2.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_dot4f(v, a, b);
+        assert(fabsf(v[0] - 50.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_hadamard4f(v, a, b);
+        assert(fabsf(v[0] - 3.0f)  < EPSILON);
+        assert(fabsf(v[1] - 8.0f)  < EPSILON);
+        assert(fabsf(v[2] - 15.0f) < EPSILON);
+        assert(fabsf(v[3] - 24.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_project4f(v, a, b);
+        assert(fabsf(v[0] - 1.744186f) < EPSILON);
+        assert(fabsf(v[1] - 2.325581f) < EPSILON);
+        assert(fabsf(v[2] - 2.906976f) < EPSILON);
+        assert(fabsf(v[3] - 3.488372f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude4f(v, b);
+        assert(fabsf(v[0] - sqrtf(86.0f)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude_sqr4f(v, b);
+        assert(fabsf(v[0] - 86.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance4f(v, a, b);
+        assert(fabsf(v[0] - 4.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance_sqr4f(v, a, b);
+        assert(fabsf(v[0] - 16.0f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_normalize4f(v, b);
+        assert(fabsf(v[0] - 0.323498f) < EPSILON);
+        assert(fabsf(v[1] - 0.431331f) < EPSILON);
+        assert(fabsf(v[2] - 0.539164f) < EPSILON);
+        assert(fabsf(v[3] - 0.646997f) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_reflect4f(v, a, n);
+        assert(fabsf(v[0] + a[0]) < EPSILON);
+        assert(fabsf(v[1] - a[1]) < EPSILON);
+        assert(fabsf(v[2] + a[2]) < EPSILON);
+        assert(fabsf(v[3] + a[3]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+    }
+
+    return 0;
+}
diff --git a/tests/un/mathr.c b/tests/un/mathr.c
new file mode 100644
index 0000000..05653b4
--- /dev/null
+++ b/tests/un/mathr.c
@@ -0,0 +1,280 @@
+#include <ungrateful.h>
+
+int main() {
+    /* 2d */
+    {
+        real a[2] = {1.0, 2.0};
+        real b[2] = {3.0, 4.0};
+        real n[2] = {0.0, 1.0};
+        real v[2];
+
+        un_m_add2r(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub2r(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_add_scalar2r(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_sub_scalar2r(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_mul_scalar2r(v, a, 2);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_div_scalar2r(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_dot2r(v, a, b);
+        assert(fabs(v[0] - 11.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_hadamard2r(v, a, b);
+        assert(fabs(v[0] - 3.0) < EPSILON);
+        assert(fabs(v[1] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_project2r(v, a, b);
+        assert(fabs(v[0] - 1.32) < EPSILON);
+        assert(fabs(v[1] - 1.76) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_cross2r(v, a);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] + 1.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude2r(v, b);
+        assert(fabs(v[0] - 5.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_magnitude_sqr2r(v, b);
+        assert(fabs(v[0] - 25.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance2r(v, a, b);
+        assert(fabs(v[0] - sqrt(8.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_distance_sqr2r(v, a, b);
+        assert(fabs(v[0] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_normalize2r(v, b);
+        assert(fabs(v[0] - 0.6) < EPSILON);
+        assert(fabs(v[1] - 0.8) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+        un_m_reflect2r(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 2);
+    }
+
+    /* 3d */
+    {
+        real a[3] = {1.0, 2.0, 3.0};
+        real b[3] = {3.0, 4.0, 5.0};
+        real n[3] = {0.0, 1.0, 0.0};
+        real v[3];
+
+        un_m_add3r(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        assert(fabs(v[2] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub3r(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_add_scalar3r(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        assert(fabs(v[2] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_sub_scalar3r(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_mul_scalar3r(v, a, 2);
+        assert(fabs(v[0] - 2.0)  < EPSILON);
+        assert(fabs(v[1] - 4.0)  < EPSILON);
+        assert(fabs(v[2] - 6.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_div_scalar3r(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 1.5) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_dot3r(v, a, b);
+        assert(fabs(v[0] - 26.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_hadamard3r(v, a, b);
+        assert(fabs(v[0] - 3.0)  < EPSILON);
+        assert(fabs(v[1] - 8.0)  < EPSILON);
+        assert(fabs(v[2] - 15.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_project3r(v, a, b);
+        assert(fabs(v[0] - 1.56) < EPSILON);
+        assert(fabs(v[1] - 2.08) < EPSILON);
+        assert(fabs(v[2] - 2.6) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_cross3r(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] - 4.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude3r(v, b);
+        assert(fabs(v[0] - sqrt(50.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_magnitude_sqr3r(v, b);
+        assert(fabs(v[0] - 50.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance3r(v, a, b);
+        assert(fabs(v[0] - sqrt(12.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_distance_sqr3r(v, a, b);
+        assert(fabs(v[0] - 12.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_normalize3r(v, b);
+        assert(fabs(v[0] - 0.424264) < EPSILON);
+        assert(fabs(v[1] - 0.565685) < EPSILON);
+        assert(fabs(v[2] - 0.707107) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+        un_m_reflect3r(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        assert(fabs(v[2] + a[2]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 3);
+    }
+
+    /* 4d */
+    {
+        real a[4] = {1.0, 2.0, 3.0, 4.0};
+        real b[4] = {3.0, 4.0, 5.0, 6.0};
+        real n[4] = {0.0, 1.0, 0.0, 0.0};
+        real v[4];
+
+        un_m_add4r(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        assert(fabs(v[1] - 6.0) < EPSILON);
+        assert(fabs(v[2] - 8.0) < EPSILON);
+        assert(fabs(v[3] - 10.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub4r(v, a, b);
+        assert(fabs(v[0] + 2.0) < EPSILON);
+        assert(fabs(v[1] + 2.0) < EPSILON);
+        assert(fabs(v[2] + 2.0) < EPSILON);
+        assert(fabs(v[3] + 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_add_scalar4r(v, a, 1);
+        assert(fabs(v[0] - 2.0) < EPSILON);
+        assert(fabs(v[1] - 3.0) < EPSILON);
+        assert(fabs(v[2] - 4.0) < EPSILON);
+        assert(fabs(v[3] - 5.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_sub_scalar4r(v, a, 1);
+        assert(fabs(v[0])        < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 2.0) < EPSILON);
+        assert(fabs(v[3] - 3.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_mul_scalar4r(v, a, 2);
+        assert(fabs(v[0] - 2.0)  < EPSILON);
+        assert(fabs(v[1] - 4.0)  < EPSILON);
+        assert(fabs(v[2] - 6.0) < EPSILON);
+        assert(fabs(v[3] - 8.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_div_scalar4r(v, a, 2);
+        assert(fabs(v[0] - 0.5) < EPSILON);
+        assert(fabs(v[1] - 1.0) < EPSILON);
+        assert(fabs(v[2] - 1.5) < EPSILON);
+        assert(fabs(v[3] - 2.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_dot4r(v, a, b);
+        assert(fabs(v[0] - 50.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_hadamard4r(v, a, b);
+        assert(fabs(v[0] - 3.0)  < EPSILON);
+        assert(fabs(v[1] - 8.0)  < EPSILON);
+        assert(fabs(v[2] - 15.0) < EPSILON);
+        assert(fabs(v[3] - 24.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_project4r(v, a, b);
+        assert(fabs(v[0] - 1.744186) < EPSILON);
+        assert(fabs(v[1] - 2.325581) < EPSILON);
+        assert(fabs(v[2] - 2.906976) < EPSILON);
+        assert(fabs(v[3] - 3.488372) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude4r(v, b);
+        assert(fabs(v[0] - sqrt(86.0)) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_magnitude_sqr4r(v, b);
+        assert(fabs(v[0] - 86.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance4r(v, a, b);
+        assert(fabs(v[0] - 4.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_distance_sqr4r(v, a, b);
+        assert(fabs(v[0] - 16.0) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_normalize4r(v, b);
+        assert(fabs(v[0] - 0.323498) < EPSILON);
+        assert(fabs(v[1] - 0.431331) < EPSILON);
+        assert(fabs(v[2] - 0.539164) < EPSILON);
+        assert(fabs(v[3] - 0.646997) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+        un_m_reflect4r(v, a, n);
+        assert(fabs(v[0] + a[0]) < EPSILON);
+        assert(fabs(v[1] - a[1]) < EPSILON);
+        assert(fabs(v[2] + a[2]) < EPSILON);
+        assert(fabs(v[3] + a[3]) < EPSILON);
+        un_memory_set((void*)v, 0, sizeof(*v) * 4);
+    }
+
+    return 0;
+}