Port a bunch of Godot container templates to GDExtension.

include/godot_cpp/core/math.hpp

@@ -62,6 +62,34 @@ namespace Math {
 #define Math_INF INFINITY
 #define Math_NAN NAN
 
+// Windows badly defines a lot of stuff we'll never use. Undefine it.
+#ifdef _WIN32
+#undef MIN // override standard definition
+#undef MAX // override standard definition
+#undef CLAMP // override standard definition
+#endif
+
+// Generic ABS function, for math uses please use Math::abs.
+#ifndef ABS
+#define ABS(m_v) (((m_v) < 0) ? (-(m_v)) : (m_v))
+#endif
+
+#ifndef SIGN
+#define SIGN(m_v) (((m_v) == 0) ? (0.0) : (((m_v) < 0) ? (-1.0) : (+1.0)))
+#endif
+
+#ifndef MIN
+#define MIN(m_a, m_b) (((m_a) < (m_b)) ? (m_a) : (m_b))
+#endif
+
+#ifndef MAX
+#define MAX(m_a, m_b) (((m_a) > (m_b)) ? (m_a) : (m_b))
+#endif
+
+#ifndef CLAMP
+#define CLAMP(m_a, m_min, m_max) (((m_a) < (m_min)) ? (m_min) : (((m_a) > (m_max)) ? m_max : m_a))
+#endif
+
 // Functions reproduced as in Godot's source code `math_funcs.h`.
 // Some are overloads to automatically support changing real_t into either double or float in the way Godot does.
 
@@ -435,7 +463,7 @@ inline int fast_ftoi(float a) {
 	: "m" (a));*/
 
 #else
-	b = lrintf(a); //assuming everything but msvc 2012 or earlier has lrint
+	b = lrintf(a); // assuming everything but msvc 2012 or earlier has lrint
 #endif
 	return b;
 }