diff --git a/scriptc/rs_cl.rsh b/scriptc/rs_cl.rsh
index 3c0496d..3a9686b 100644
--- a/scriptc/rs_cl.rsh
+++ b/scriptc/rs_cl.rsh
@@ -1,30 +1,17 @@
 #ifndef __RS_CL_RSH__
 #define __RS_CL_RSH__
 
-#ifdef BCC_PREPARE_BC
 #define _RS_STATIC  extern
-#else
-#define _RS_STATIC  static
-#endif
 
 // Conversions
 #define CVT_FUNC_2(typeout, typein)                             \
 _RS_STATIC typeout##2 __attribute__((overloadable))             \
-        convert_##typeout##2(typein##2 v) {                     \
-    typeout##2 r = {(typeout)v.x, (typeout)v.y};                \
-    return r;                                                   \
-}                                                               \
+        convert_##typeout##2(typein##2 v);                      \
 _RS_STATIC typeout##3 __attribute__((overloadable))             \
-        convert_##typeout##3(typein##3 v) {                     \
-    typeout##3 r = {(typeout)v.x, (typeout)v.y, (typeout)v.z};  \
-    return r;                                                   \
-}                                                               \
+        convert_##typeout##3(typein##3 v);                      \
 _RS_STATIC typeout##4 __attribute__((overloadable))             \
-        convert_##typeout##4(typein##4 v) {                     \
-    typeout##4 r = {(typeout)v.x, (typeout)v.y, (typeout)v.z,   \
-                    (typeout)v.w};                              \
-    return r;                                                   \
-}
+        convert_##typeout##4(typein##4 v);
+
 
 #define CVT_FUNC(type)  CVT_FUNC_2(type, uchar)     \
                         CVT_FUNC_2(type, char)      \
@@ -45,279 +32,63 @@
 // Float ops, 6.11.2
 
 #define FN_FUNC_FN(fnc)                                         \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v) { \
-    float2 r;                                                   \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    return r;                                                   \
-}                                                               \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v) { \
-    float3 r;                                                   \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    r.z = fnc(v.z);                                             \
-    return r;                                                   \
-}                                                               \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v) { \
-    float4 r;                                                   \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    r.z = fnc(v.z);                                             \
-    r.w = fnc(v.w);                                             \
-    return r;                                                   \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v);  \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v);  \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v);
 
 #define IN_FUNC_FN(fnc)                                         \
-_RS_STATIC int2 __attribute__((overloadable)) fnc(float2 v) {   \
-    int2 r;                                                     \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    return r;                                                   \
-}                                                               \
-_RS_STATIC int3 __attribute__((overloadable)) fnc(float3 v) {   \
-    int3 r;                                                     \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    r.z = fnc(v.z);                                             \
-    return r;                                                   \
-}                                                               \
-_RS_STATIC int4 __attribute__((overloadable)) fnc(float4 v) {   \
-    int4 r;                                                     \
-    r.x = fnc(v.x);                                             \
-    r.y = fnc(v.y);                                             \
-    r.z = fnc(v.z);                                             \
-    r.w = fnc(v.w);                                             \
-    return r;                                                   \
-}
+_RS_STATIC int2 __attribute__((overloadable)) fnc(float2 v);    \
+_RS_STATIC int3 __attribute__((overloadable)) fnc(float3 v);    \
+_RS_STATIC int4 __attribute__((overloadable)) fnc(float4 v);
 
 #define FN_FUNC_FN_FN(fnc)                                                  \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, float2 v2) { \
-    float2 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, float3 v2) { \
-    float3 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    r.z = fnc(v1.z, v2.z);                                                  \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, float4 v2) { \
-    float4 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    r.z = fnc(v1.z, v2.z);                                                  \
-    r.w = fnc(v1.w, v2.w);                                                  \
-    return r;                                                               \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, float2 v2);  \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, float3 v2);  \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, float4 v2);
 
 #define FN_FUNC_FN_F(fnc)                                                   \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, float v2) {  \
-    float2 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, float v2) {  \
-    float3 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    r.z = fnc(v1.z, v2);                                                    \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, float v2) {  \
-    float4 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    r.z = fnc(v1.z, v2);                                                    \
-    r.w = fnc(v1.w, v2);                                                    \
-    return r;                                                               \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, float v2);   \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, float v2);   \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, float v2);
 
 #define FN_FUNC_FN_IN(fnc)                                                  \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int2 v2) {   \
-    float2 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int3 v2) {   \
-    float3 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    r.z = fnc(v1.z, v2.z);                                                  \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int4 v2) {   \
-    float4 r;                                                               \
-    r.x = fnc(v1.x, v2.x);                                                  \
-    r.y = fnc(v1.y, v2.y);                                                  \
-    r.z = fnc(v1.z, v2.z);                                                  \
-    r.w = fnc(v1.w, v2.w);                                                  \
-    return r;                                                               \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int2 v2);    \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int3 v2);    \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int4 v2);    \
 
 #define FN_FUNC_FN_I(fnc)                                                   \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int v2) {    \
-    float2 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int v2) {    \
-    float3 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    r.z = fnc(v1.z, v2);                                                    \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int v2) {    \
-    float4 r;                                                               \
-    r.x = fnc(v1.x, v2);                                                    \
-    r.y = fnc(v1.y, v2);                                                    \
-    r.z = fnc(v1.z, v2);                                                    \
-    r.w = fnc(v1.w, v2);                                                    \
-    return r;                                                               \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int v2);     \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int v2);     \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int v2);
 
 #define FN_FUNC_FN_PFN(fnc)                     \
 _RS_STATIC float2 __attribute__((overloadable)) \
-        fnc(float2 v1, float2 *v2) {            \
-    float2 r;                                   \
-    float t[2];                                 \
-    r.x = fnc(v1.x, &t[0]);                     \
-    r.y = fnc(v1.y, &t[1]);                     \
-    v2->x = t[0];                               \
-    v2->y = t[1];                               \
-    return r;                                   \
-}                                               \
+        fnc(float2 v1, float2 *v2);             \
 _RS_STATIC float3 __attribute__((overloadable)) \
-        fnc(float3 v1, float3 *v2) {            \
-    float3 r;                                   \
-    float t[3];                                 \
-    r.x = fnc(v1.x, &t[0]);                     \
-    r.y = fnc(v1.y, &t[1]);                     \
-    r.z = fnc(v1.z, &t[2]);                     \
-    v2->x = t[0];                               \
-    v2->y = t[1];                               \
-    v2->z = t[2];                               \
-    return r;                                   \
-}                                               \
+        fnc(float3 v1, float3 *v2);             \
 _RS_STATIC float4 __attribute__((overloadable)) \
-        fnc(float4 v1, float4 *v2) {            \
-    float4 r;                                   \
-    float t[4];                                 \
-    r.x = fnc(v1.x, &t[0]);                     \
-    r.y = fnc(v1.y, &t[1]);                     \
-    r.z = fnc(v1.z, &t[2]);                     \
-    r.w = fnc(v1.w, &t[3]);                     \
-    v2->x = t[0];                               \
-    v2->y = t[1];                               \
-    v2->z = t[2];                               \
-    v2->w = t[3];                               \
-    return r;                                   \
-}
+        fnc(float4 v1, float4 *v2);
 
 #define FN_FUNC_FN_PIN(fnc)                                                 \
-_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int2 *v2) {  \
-    float2 r;                                                               \
-    int t[2];                                                               \
-    r.x = fnc(v1.x, &t[0]);                                                 \
-    r.y = fnc(v1.y, &t[1]);                                                 \
-    v2->x = t[0];                                                           \
-    v2->y = t[1];                                                           \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int3 *v2) {  \
-    float3 r;                                                               \
-    int t[3];                                                               \
-    r.x = fnc(v1.x, &t[0]);                                                 \
-    r.y = fnc(v1.y, &t[1]);                                                 \
-    r.z = fnc(v1.z, &t[2]);                                                 \
-    v2->x = t[0];                                                           \
-    v2->y = t[1];                                                           \
-    v2->z = t[2];                                                           \
-    return r;                                                               \
-}                                                                           \
-_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int4 *v2) {  \
-    float4 r;                                                               \
-    int t[4];                                                               \
-    r.x = fnc(v1.x, &t[0]);                                                 \
-    r.y = fnc(v1.y, &t[1]);                                                 \
-    r.z = fnc(v1.z, &t[2]);                                                 \
-    r.w = fnc(v1.w, &t[3]);                                                 \
-    v2->x = t[0];                                                           \
-    v2->y = t[1];                                                           \
-    v2->z = t[2];                                                           \
-    v2->w = t[3];                                                           \
-    return r;                                                               \
-}
+_RS_STATIC float2 __attribute__((overloadable)) fnc(float2 v1, int2 *v2);   \
+_RS_STATIC float3 __attribute__((overloadable)) fnc(float3 v1, int3 *v2);   \
+_RS_STATIC float4 __attribute__((overloadable)) fnc(float4 v1, int4 *v2);
 
 #define FN_FUNC_FN_FN_FN(fnc)                   \
 _RS_STATIC float2 __attribute__((overloadable)) \
-        fnc(float2 v1, float2 v2, float2 v3) {  \
-    float2 r;                                   \
-    r.x = fnc(v1.x, v2.x, v3.x);                \
-    r.y = fnc(v1.y, v2.y, v3.y);                \
-    return r;                                   \
-}                                               \
+        fnc(float2 v1, float2 v2, float2 v3);   \
 _RS_STATIC float3 __attribute__((overloadable)) \
-        fnc(float3 v1, float3 v2, float3 v3) {  \
-    float3 r;                                   \
-    r.x = fnc(v1.x, v2.x, v3.x);                \
-    r.y = fnc(v1.y, v2.y, v3.y);                \
-    r.z = fnc(v1.z, v2.z, v3.z);                \
-    return r;                                   \
-}                                               \
+        fnc(float3 v1, float3 v2, float3 v3);   \
 _RS_STATIC float4 __attribute__((overloadable)) \
-        fnc(float4 v1, float4 v2, float4 v3) {  \
-    float4 r;                                   \
-    r.x = fnc(v1.x, v2.x, v3.x);                \
-    r.y = fnc(v1.y, v2.y, v3.y);                \
-    r.z = fnc(v1.z, v2.z, v3.z);                \
-    r.w = fnc(v1.w, v2.w, v3.w);                \
-    return r;                                   \
-}
+        fnc(float4 v1, float4 v2, float4 v3);
 
 #define FN_FUNC_FN_FN_PIN(fnc)                  \
 _RS_STATIC float2 __attribute__((overloadable)) \
-        fnc(float2 v1, float2 v2, int2 *v3) {   \
-    float2 r;                                   \
-    int t[2];                                   \
-    r.x = fnc(v1.x, v2.x, &t[0]);               \
-    r.y = fnc(v1.y, v2.y, &t[1]);               \
-    v3->x = t[0];                               \
-    v3->y = t[1];                               \
-    return r;                                   \
-}                                               \
+        fnc(float2 v1, float2 v2, int2 *v3);    \
 _RS_STATIC float3 __attribute__((overloadable)) \
-        fnc(float3 v1, float3 v2, int3 *v3) {   \
-    float3 r;                                   \
-    int t[3];                                   \
-    r.x = fnc(v1.x, v2.x, &t[0]);               \
-    r.y = fnc(v1.y, v2.y, &t[1]);               \
-    r.z = fnc(v1.z, v2.z, &t[2]);               \
-    v3->x = t[0];                               \
-    v3->y = t[1];                               \
-    v3->z = t[2];                               \
-    return r;                                   \
-}                                               \
+        fnc(float3 v1, float3 v2, int3 *v3);    \
 _RS_STATIC float4 __attribute__((overloadable)) \
-        fnc(float4 v1, float4 v2, int4 *v3) {   \
-    float4 r;                                   \
-    int t[4];                                   \
-    r.x = fnc(v1.x, v2.x, &t[0]);               \
-    r.y = fnc(v1.y, v2.y, &t[1]);               \
-    r.z = fnc(v1.z, v2.z, &t[2]);               \
-    r.w = fnc(v1.w, v2.w, &t[3]);               \
-    v3->x = t[0];                               \
-    v3->y = t[1];                               \
-    v3->z = t[2];                               \
-    v3->w = t[3];                               \
-    return r;                                   \
-}
+        fnc(float4 v1, float4 v2, int4 *v3);
 
 
 extern float __attribute__((overloadable)) acos(float);
@@ -326,9 +97,9 @@
 extern float __attribute__((overloadable)) acosh(float);
 FN_FUNC_FN(acosh)
 
-_RS_STATIC float __attribute__((overloadable)) acospi(float v) {
-    return acos(v) / M_PI;
-}
+_RS_STATIC float __attribute__((overloadable)) acospi(float v);
+
+
 FN_FUNC_FN(acospi)
 
 extern float __attribute__((overloadable)) asin(float);
@@ -337,9 +108,8 @@
 extern float __attribute__((overloadable)) asinh(float);
 FN_FUNC_FN(asinh)
 
-_RS_STATIC float __attribute__((overloadable)) asinpi(float v) {
-    return asin(v) / M_PI;
-}
+
+_RS_STATIC float __attribute__((overloadable)) asinpi(float v);
 FN_FUNC_FN(asinpi)
 
 extern float __attribute__((overloadable)) atan(float);
@@ -351,14 +121,12 @@
 extern float __attribute__((overloadable)) atanh(float);
 FN_FUNC_FN(atanh)
 
-_RS_STATIC float __attribute__((overloadable)) atanpi(float v) {
-    return atan(v) / M_PI;
-}
+
+_RS_STATIC float __attribute__((overloadable)) atanpi(float v);
 FN_FUNC_FN(atanpi)
 
-_RS_STATIC float __attribute__((overloadable)) atan2pi(float y, float x) {
-    return atan2(y, x) / M_PI;
-}
+
+_RS_STATIC float __attribute__((overloadable)) atan2pi(float y, float x);
 FN_FUNC_FN_FN(atan2pi)
 
 extern float __attribute__((overloadable)) cbrt(float);
@@ -376,9 +144,8 @@
 extern float __attribute__((overloadable)) cosh(float);
 FN_FUNC_FN(cosh)
 
-_RS_STATIC float __attribute__((overloadable)) cospi(float v) {
-    return cos(v * M_PI);
-}
+
+_RS_STATIC float __attribute__((overloadable)) cospi(float v);
 FN_FUNC_FN(cospi)
 
 extern float __attribute__((overloadable)) erfc(float);
@@ -394,9 +161,8 @@
 FN_FUNC_FN(exp2)
 
 extern float __attribute__((overloadable)) pow(float, float);
-_RS_STATIC float __attribute__((overloadable)) exp10(float v) {
-    return pow(10.f, v);
-}
+
+_RS_STATIC float __attribute__((overloadable)) exp10(float v);
 FN_FUNC_FN(exp10)
 
 extern float __attribute__((overloadable)) expm1(float);
@@ -425,11 +191,8 @@
 extern float __attribute__((overloadable)) fmod(float, float);
 FN_FUNC_FN_FN(fmod)
 
-_RS_STATIC float __attribute__((overloadable)) fract(float v, float *iptr) {
-    int i = (int)floor(v);
-    iptr[0] = i;
-    return fmin(v - i, 0x1.fffffep-1f);
-}
+
+_RS_STATIC float __attribute__((overloadable)) fract(float v, float *iptr);
 FN_FUNC_FN_PFN(fract)
 
 extern float __attribute__((overloadable)) frexp(float, int *);
@@ -457,9 +220,8 @@
 extern float __attribute__((overloadable)) log10(float);
 FN_FUNC_FN(log10)
 
-_RS_STATIC float __attribute__((overloadable)) log2(float v) {
-    return log10(v) / log10(2.f);
-}
+
+_RS_STATIC float __attribute__((overloadable)) log2(float v);
 FN_FUNC_FN(log2)
 
 extern float __attribute__((overloadable)) log1p(float);
@@ -481,31 +243,15 @@
 
 FN_FUNC_FN_FN(pow)
 
-_RS_STATIC float __attribute__((overloadable)) pown(float v, int p) {
-    return pow(v, (float)p);
-}
-_RS_STATIC float2 __attribute__((overloadable)) pown(float2 v, int2 p) {
-    return pow(v, (float2)p);
-}
-_RS_STATIC float3 __attribute__((overloadable)) pown(float3 v, int3 p) {
-    return pow(v, (float3)p);
-}
-_RS_STATIC float4 __attribute__((overloadable)) pown(float4 v, int4 p) {
-    return pow(v, (float4)p);
-}
+_RS_STATIC float __attribute__((overloadable)) pown(float v, int p);
+_RS_STATIC float2 __attribute__((overloadable)) pown(float2 v, int2 p);
+_RS_STATIC float3 __attribute__((overloadable)) pown(float3 v, int3 p);
+_RS_STATIC float4 __attribute__((overloadable)) pown(float4 v, int4 p);
 
-_RS_STATIC float __attribute__((overloadable)) powr(float v, float p) {
-    return pow(v, p);
-}
-_RS_STATIC float2 __attribute__((overloadable)) powr(float2 v, float2 p) {
-    return pow(v, p);
-}
-_RS_STATIC float3 __attribute__((overloadable)) powr(float3 v, float3 p) {
-    return pow(v, p);
-}
-_RS_STATIC float4 __attribute__((overloadable)) powr(float4 v, float4 p) {
-    return pow(v, p);
-}
+_RS_STATIC float __attribute__((overloadable)) powr(float v, float p);
+_RS_STATIC float2 __attribute__((overloadable)) powr(float2 v, float2 p);
+_RS_STATIC float3 __attribute__((overloadable)) powr(float3 v, float3 p);
+_RS_STATIC float4 __attribute__((overloadable)) powr(float4 v, float4 p);
 
 extern float __attribute__((overloadable)) remainder(float, float);
 FN_FUNC_FN_FN(remainder)
@@ -516,57 +262,33 @@
 extern float __attribute__((overloadable)) rint(float);
 FN_FUNC_FN(rint)
 
-_RS_STATIC float __attribute__((overloadable)) rootn(float v, int r) {
-    return pow(v, 1.f / r);
-}
-_RS_STATIC float2 __attribute__((overloadable)) rootn(float2 v, int2 r) {
-    float2 t = {1.f / r.x, 1.f / r.y};
-    return pow(v, t);
-}
-_RS_STATIC float3 __attribute__((overloadable)) rootn(float3 v, int3 r) {
-    float3 t = {1.f / r.x, 1.f / r.y, 1.f / r.z};
-    return pow(v, t);
-}
-_RS_STATIC float4 __attribute__((overloadable)) rootn(float4 v, int4 r) {
-    float4 t = {1.f / r.x, 1.f / r.y, 1.f / r.z, 1.f / r.w};
-    return pow(v, t);
-}
+
+_RS_STATIC float __attribute__((overloadable)) rootn(float v, int r);
+_RS_STATIC float2 __attribute__((overloadable)) rootn(float2 v, int2 r);
+_RS_STATIC float3 __attribute__((overloadable)) rootn(float3 v, int3 r);
+_RS_STATIC float4 __attribute__((overloadable)) rootn(float4 v, int4 r);
+
 
 extern float __attribute__((overloadable)) round(float);
 FN_FUNC_FN(round)
 
+
 extern float __attribute__((overloadable)) sqrt(float);
-_RS_STATIC float __attribute__((overloadable)) rsqrt(float v) {
-    return 1.f / sqrt(v);
-}
+_RS_STATIC float __attribute__((overloadable)) rsqrt(float v);
 FN_FUNC_FN(rsqrt)
 
 extern float __attribute__((overloadable)) sin(float);
 FN_FUNC_FN(sin)
 
-_RS_STATIC float __attribute__((overloadable)) sincos(float v, float *cosptr) {
-    *cosptr = cos(v);
-    return sin(v);
-}
-_RS_STATIC float2 __attribute__((overloadable)) sincos(float2 v, float2 *cosptr) {
-    *cosptr = cos(v);
-    return sin(v);
-}
-_RS_STATIC float3 __attribute__((overloadable)) sincos(float3 v, float3 *cosptr) {
-    *cosptr = cos(v);
-    return sin(v);
-}
-_RS_STATIC float4 __attribute__((overloadable)) sincos(float4 v, float4 *cosptr) {
-    *cosptr = cos(v);
-    return sin(v);
-}
+_RS_STATIC float __attribute__((overloadable)) sincos(float v, float *cosptr);
+_RS_STATIC float2 __attribute__((overloadable)) sincos(float2 v, float2 *cosptr);
+_RS_STATIC float3 __attribute__((overloadable)) sincos(float3 v, float3 *cosptr);
+_RS_STATIC float4 __attribute__((overloadable)) sincos(float4 v, float4 *cosptr);
 
 extern float __attribute__((overloadable)) sinh(float);
 FN_FUNC_FN(sinh)
 
-_RS_STATIC float __attribute__((overloadable)) sinpi(float v) {
-    return sin(v * M_PI);
-}
+_RS_STATIC float __attribute__((overloadable)) sinpi(float v);
 FN_FUNC_FN(sinpi)
 
 FN_FUNC_FN(sqrt)
@@ -577,11 +299,10 @@
 extern float __attribute__((overloadable)) tanh(float);
 FN_FUNC_FN(tanh)
 
-_RS_STATIC float __attribute__((overloadable)) tanpi(float v) {
-    return tan(v * M_PI);
-}
+_RS_STATIC float __attribute__((overloadable)) tanpi(float v);
 FN_FUNC_FN(tanpi)
 
+
 extern float __attribute__((overloadable)) tgamma(float);
 FN_FUNC_FN(tgamma)
 
@@ -592,27 +313,9 @@
 
 #define XN_FUNC_YN(typeout, fnc, typein)                                \
 extern typeout __attribute__((overloadable)) fnc(typein);               \
-_RS_STATIC typeout##2 __attribute__((overloadable)) fnc(typein##2 v) {  \
-    typeout##2 r;                                                       \
-    r.x = fnc(v.x);                                                     \
-    r.y = fnc(v.y);                                                     \
-    return r;                                                           \
-}                                                                       \
-_RS_STATIC typeout##3 __attribute__((overloadable)) fnc(typein##3 v) {  \
-    typeout##3 r;                                                       \
-    r.x = fnc(v.x);                                                     \
-    r.y = fnc(v.y);                                                     \
-    r.z = fnc(v.z);                                                     \
-    return r;                                                           \
-}                                                                       \
-_RS_STATIC typeout##4 __attribute__((overloadable)) fnc(typein##4 v) {  \
-    typeout##4 r;                                                       \
-    r.x = fnc(v.x);                                                     \
-    r.y = fnc(v.y);                                                     \
-    r.z = fnc(v.z);                                                     \
-    r.w = fnc(v.w);                                                     \
-    return r;                                                           \
-}
+_RS_STATIC typeout##2 __attribute__((overloadable)) fnc(typein##2 v);   \
+_RS_STATIC typeout##3 __attribute__((overloadable)) fnc(typein##3 v);   \
+_RS_STATIC typeout##4 __attribute__((overloadable)) fnc(typein##4 v);
 
 #define UIN_FUNC_IN(fnc)          \
 XN_FUNC_YN(uchar, fnc, char)      \
@@ -627,35 +330,16 @@
 XN_FUNC_YN(uint, fnc, uint)       \
 XN_FUNC_YN(int, fnc, int)
 
+
 #define XN_FUNC_XN_XN_BODY(type, fnc, body)         \
 _RS_STATIC type __attribute__((overloadable))       \
-        fnc(type v1, type v2) {                     \
-    return body;                                    \
-}                                                   \
+        fnc(type v1, type v2);                      \
 _RS_STATIC type##2 __attribute__((overloadable))    \
-        fnc(type##2 v1, type##2 v2) {               \
-    type##2 r;                                      \
-    r.x = fnc(v1.x, v2.x);                          \
-    r.y = fnc(v1.y, v2.y);                          \
-    return r;                                       \
-}                                                   \
+        fnc(type##2 v1, type##2 v2);                \
 _RS_STATIC type##3 __attribute__((overloadable))    \
-        fnc(type##3 v1, type##3 v2) {               \
-    type##3 r;                                      \
-    r.x = fnc(v1.x, v2.x);                          \
-    r.y = fnc(v1.y, v2.y);                          \
-    r.z = fnc(v1.z, v2.z);                          \
-    return r;                                       \
-}                                                   \
+        fnc(type##3 v1, type##3 v2);                \
 _RS_STATIC type##4 __attribute__((overloadable))    \
-        fnc(type##4 v1, type##4 v2) {               \
-    type##4 r;                                      \
-    r.x = fnc(v1.x, v2.x);                          \
-    r.y = fnc(v1.y, v2.y);                          \
-    r.z = fnc(v1.z, v2.z);                          \
-    r.w = fnc(v1.w, v2.w);                          \
-    return r;                                       \
-}
+        fnc(type##4 v1, type##4 v2);
 
 #define IN_FUNC_IN_IN_BODY(fnc, body) \
 XN_FUNC_XN_XN_BODY(uchar, fnc, body)  \
@@ -677,129 +361,35 @@
 
 // 6.11.4
 
-_RS_STATIC float __attribute__((overloadable)) clamp(float amount, float low, float high) {
-    return amount < low ? low : (amount > high ? high : amount);
-}
-_RS_STATIC float2 __attribute__((overloadable)) clamp(float2 amount, float2 low, float2 high) {
-    float2 r;
-    r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x);
-    r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y);
-    return r;
-}
-_RS_STATIC float3 __attribute__((overloadable)) clamp(float3 amount, float3 low, float3 high) {
-    float3 r;
-    r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x);
-    r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y);
-    r.z = amount.z < low.z ? low.z : (amount.z > high.z ? high.z : amount.z);
-    return r;
-}
-_RS_STATIC float4 __attribute__((overloadable)) clamp(float4 amount, float4 low, float4 high) {
-    float4 r;
-    r.x = amount.x < low.x ? low.x : (amount.x > high.x ? high.x : amount.x);
-    r.y = amount.y < low.y ? low.y : (amount.y > high.y ? high.y : amount.y);
-    r.z = amount.z < low.z ? low.z : (amount.z > high.z ? high.z : amount.z);
-    r.w = amount.w < low.w ? low.w : (amount.w > high.w ? high.w : amount.w);
-    return r;
-}
-_RS_STATIC float2 __attribute__((overloadable)) clamp(float2 amount, float low, float high) {
-    float2 r;
-    r.x = amount.x < low ? low : (amount.x > high ? high : amount.x);
-    r.y = amount.y < low ? low : (amount.y > high ? high : amount.y);
-    return r;
-}
-_RS_STATIC float3 __attribute__((overloadable)) clamp(float3 amount, float low, float high) {
-    float3 r;
-    r.x = amount.x < low ? low : (amount.x > high ? high : amount.x);
-    r.y = amount.y < low ? low : (amount.y > high ? high : amount.y);
-    r.z = amount.z < low ? low : (amount.z > high ? high : amount.z);
-    return r;
-}
-_RS_STATIC float4 __attribute__((overloadable)) clamp(float4 amount, float low, float high) {
-    float4 r;
-    r.x = amount.x < low ? low : (amount.x > high ? high : amount.x);
-    r.y = amount.y < low ? low : (amount.y > high ? high : amount.y);
-    r.z = amount.z < low ? low : (amount.z > high ? high : amount.z);
-    r.w = amount.w < low ? low : (amount.w > high ? high : amount.w);
-    return r;
-}
+_RS_STATIC float __attribute__((overloadable)) clamp(float amount, float low, float high);
+_RS_STATIC float2 __attribute__((overloadable)) clamp(float2 amount, float2 low, float2 high);
+_RS_STATIC float3 __attribute__((overloadable)) clamp(float3 amount, float3 low, float3 high);
+_RS_STATIC float4 __attribute__((overloadable)) clamp(float4 amount, float4 low, float4 high);
+_RS_STATIC float2 __attribute__((overloadable)) clamp(float2 amount, float low, float high);
+_RS_STATIC float3 __attribute__((overloadable)) clamp(float3 amount, float low, float high);
+_RS_STATIC float4 __attribute__((overloadable)) clamp(float4 amount, float low, float high);
 
-_RS_STATIC float __attribute__((overloadable)) degrees(float radians) {
-    return radians * (180.f / M_PI);
-}
+_RS_STATIC float __attribute__((overloadable)) degrees(float radians);
 FN_FUNC_FN(degrees)
 
-_RS_STATIC float __attribute__((overloadable)) mix(float start, float stop, float amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float2 amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float3 amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float4 amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float amount) {
-    return start + (stop - start) * amount;
-}
-_RS_STATIC float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float amount) {
-    return start + (stop - start) * amount;
-}
+_RS_STATIC float __attribute__((overloadable)) mix(float start, float stop, float amount);
+_RS_STATIC float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float2 amount);
+_RS_STATIC float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float3 amount);
+_RS_STATIC float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float4 amount);
+_RS_STATIC float2 __attribute__((overloadable)) mix(float2 start, float2 stop, float amount);
+_RS_STATIC float3 __attribute__((overloadable)) mix(float3 start, float3 stop, float amount);
+_RS_STATIC float4 __attribute__((overloadable)) mix(float4 start, float4 stop, float amount);
 
-_RS_STATIC float __attribute__((overloadable)) radians(float degrees) {
-    return degrees * (M_PI / 180.f);
-}
+_RS_STATIC float __attribute__((overloadable)) radians(float degrees);
 FN_FUNC_FN(radians)
 
-_RS_STATIC float __attribute__((overloadable)) step(float edge, float v) {
-    return (v < edge) ? 0.f : 1.f;
-}
-_RS_STATIC float2 __attribute__((overloadable)) step(float2 edge, float2 v) {
-    float2 r;
-    r.x = (v.x < edge.x) ? 0.f : 1.f;
-    r.y = (v.y < edge.y) ? 0.f : 1.f;
-    return r;
-}
-_RS_STATIC float3 __attribute__((overloadable)) step(float3 edge, float3 v) {
-    float3 r;
-    r.x = (v.x < edge.x) ? 0.f : 1.f;
-    r.y = (v.y < edge.y) ? 0.f : 1.f;
-    r.z = (v.z < edge.z) ? 0.f : 1.f;
-    return r;
-}
-_RS_STATIC float4 __attribute__((overloadable)) step(float4 edge, float4 v) {
-    float4 r;
-    r.x = (v.x < edge.x) ? 0.f : 1.f;
-    r.y = (v.y < edge.y) ? 0.f : 1.f;
-    r.z = (v.z < edge.z) ? 0.f : 1.f;
-    r.w = (v.w < edge.w) ? 0.f : 1.f;
-    return r;
-}
-_RS_STATIC float2 __attribute__((overloadable)) step(float2 edge, float v) {
-    float2 r;
-    r.x = (v < edge.x) ? 0.f : 1.f;
-    r.y = (v < edge.y) ? 0.f : 1.f;
-    return r;
-}
-_RS_STATIC float3 __attribute__((overloadable)) step(float3 edge, float v) {
-    float3 r;
-    r.x = (v < edge.x) ? 0.f : 1.f;
-    r.y = (v < edge.y) ? 0.f : 1.f;
-    r.z = (v < edge.z) ? 0.f : 1.f;
-    return r;
-}
-_RS_STATIC float4 __attribute__((overloadable)) step(float4 edge, float v) {
-    float4 r;
-    r.x = (v < edge.x) ? 0.f : 1.f;
-    r.y = (v < edge.y) ? 0.f : 1.f;
-    r.z = (v < edge.z) ? 0.f : 1.f;
-    r.w = (v < edge.w) ? 0.f : 1.f;
-    return r;
-}
+_RS_STATIC float __attribute__((overloadable)) step(float edge, float v);
+_RS_STATIC float2 __attribute__((overloadable)) step(float2 edge, float2 v);
+_RS_STATIC float3 __attribute__((overloadable)) step(float3 edge, float3 v);
+_RS_STATIC float4 __attribute__((overloadable)) step(float4 edge, float4 v);
+_RS_STATIC float2 __attribute__((overloadable)) step(float2 edge, float v);
+_RS_STATIC float3 __attribute__((overloadable)) step(float3 edge, float v);
+_RS_STATIC float4 __attribute__((overloadable)) step(float4 edge, float v);
 
 extern float __attribute__((overloadable)) smoothstep(float, float, float);
 extern float2 __attribute__((overloadable)) smoothstep(float2, float2, float2);
@@ -809,82 +399,33 @@
 extern float3 __attribute__((overloadable)) smoothstep(float, float, float3);
 extern float4 __attribute__((overloadable)) smoothstep(float, float, float4);
 
-_RS_STATIC float __attribute__((overloadable)) sign(float v) {
-    if (v > 0) return 1.f;
-    if (v < 0) return -1.f;
-    return v;
-}
+_RS_STATIC float __attribute__((overloadable)) sign(float v);
 FN_FUNC_FN(sign)
 
 // 6.11.5
-_RS_STATIC float3 __attribute__((overloadable)) cross(float3 lhs, float3 rhs) {
-    float3 r;
-    r.x = lhs.y * rhs.z  - lhs.z * rhs.y;
-    r.y = lhs.z * rhs.x  - lhs.x * rhs.z;
-    r.z = lhs.x * rhs.y  - lhs.y * rhs.x;
-    return r;
-}
+_RS_STATIC float3 __attribute__((overloadable)) cross(float3 lhs, float3 rhs);
 
-_RS_STATIC float4 __attribute__((overloadable)) cross(float4 lhs, float4 rhs) {
-    float4 r;
-    r.x = lhs.y * rhs.z  - lhs.z * rhs.y;
-    r.y = lhs.z * rhs.x  - lhs.x * rhs.z;
-    r.z = lhs.x * rhs.y  - lhs.y * rhs.x;
-    r.w = 0.f;
-    return r;
-}
+_RS_STATIC float4 __attribute__((overloadable)) cross(float4 lhs, float4 rhs);
 
-_RS_STATIC float __attribute__((overloadable)) dot(float lhs, float rhs) {
-    return lhs * rhs;
-}
-_RS_STATIC float __attribute__((overloadable)) dot(float2 lhs, float2 rhs) {
-    return lhs.x*rhs.x + lhs.y*rhs.y;
-}
-_RS_STATIC float __attribute__((overloadable)) dot(float3 lhs, float3 rhs) {
-    return lhs.x*rhs.x + lhs.y*rhs.y + lhs.z*rhs.z;
-}
-_RS_STATIC float __attribute__((overloadable)) dot(float4 lhs, float4 rhs) {
-    return lhs.x*rhs.x + lhs.y*rhs.y + lhs.z*rhs.z + lhs.w*rhs.w;
-}
+_RS_STATIC float __attribute__((overloadable)) dot(float lhs, float rhs);
+_RS_STATIC float __attribute__((overloadable)) dot(float2 lhs, float2 rhs);
+_RS_STATIC float __attribute__((overloadable)) dot(float3 lhs, float3 rhs);
+_RS_STATIC float __attribute__((overloadable)) dot(float4 lhs, float4 rhs);
 
-_RS_STATIC float __attribute__((overloadable)) length(float v) {
-    return v;
-}
-_RS_STATIC float __attribute__((overloadable)) length(float2 v) {
-    return sqrt(v.x*v.x + v.y*v.y);
-}
-_RS_STATIC float __attribute__((overloadable)) length(float3 v) {
-    return sqrt(v.x*v.x + v.y*v.y + v.z*v.z);
-}
-_RS_STATIC float __attribute__((overloadable)) length(float4 v) {
-    return sqrt(v.x*v.x + v.y*v.y + v.z*v.z + v.w*v.w);
-}
+_RS_STATIC float __attribute__((overloadable)) length(float v);
+_RS_STATIC float __attribute__((overloadable)) length(float2 v);
+_RS_STATIC float __attribute__((overloadable)) length(float3 v);
+_RS_STATIC float __attribute__((overloadable)) length(float4 v);
 
-_RS_STATIC float __attribute__((overloadable)) distance(float lhs, float rhs) {
-    return length(lhs - rhs);
-}
-_RS_STATIC float __attribute__((overloadable)) distance(float2 lhs, float2 rhs) {
-    return length(lhs - rhs);
-}
-_RS_STATIC float __attribute__((overloadable)) distance(float3 lhs, float3 rhs) {
-    return length(lhs - rhs);
-}
-_RS_STATIC float __attribute__((overloadable)) distance(float4 lhs, float4 rhs) {
-    return length(lhs - rhs);
-}
+_RS_STATIC float __attribute__((overloadable)) distance(float lhs, float rhs);
+_RS_STATIC float __attribute__((overloadable)) distance(float2 lhs, float2 rhs);
+_RS_STATIC float __attribute__((overloadable)) distance(float3 lhs, float3 rhs);
+_RS_STATIC float __attribute__((overloadable)) distance(float4 lhs, float4 rhs);
 
-_RS_STATIC float __attribute__((overloadable)) normalize(float v) {
-    return 1.f;
-}
-_RS_STATIC float2 __attribute__((overloadable)) normalize(float2 v) {
-    return v / length(v);
-}
-_RS_STATIC float3 __attribute__((overloadable)) normalize(float3 v) {
-    return v / length(v);
-}
-_RS_STATIC float4 __attribute__((overloadable)) normalize(float4 v) {
-    return v / length(v);
-}
+_RS_STATIC float __attribute__((overloadable)) normalize(float v);
+_RS_STATIC float2 __attribute__((overloadable)) normalize(float2 v);
+_RS_STATIC float3 __attribute__((overloadable)) normalize(float3 v);
+_RS_STATIC float4 __attribute__((overloadable)) normalize(float4 v);
 
 #undef CVT_FUNC
 #undef CVT_FUNC_2