Excluded floating point macrodef constants out of extern "C" block.

Author: KOLANICH

cores/arduino/Arduino.h

@@ -37,6 +37,13 @@
 
 #include "binary.h"
 
+#define PI 3.1415926535897932384626433832795
+#define HALF_PI 1.5707963267948966192313216916398
+#define TWO_PI 6.283185307179586476925286766559
+#define DEG_TO_RAD 0.017453292519943295769236907684886
+#define RAD_TO_DEG 57.295779513082320876798154814105
+#define EULER 2.718281828459045235360287471352
+
 #ifdef __cplusplus
 extern "C"{
 #endif
@@ -59,13 +66,6 @@ typedef enum ARD_CHAR_ENUM_XWEZPiBoACuGnH{
   OUTPUT_OPENDRAIN = 4,
 } PinMode;
 
-#define PI 3.1415926535897932384626433832795
-#define HALF_PI 1.5707963267948966192313216916398
-#define TWO_PI 6.283185307179586476925286766559
-#define DEG_TO_RAD 0.017453292519943295769236907684886
-#define RAD_TO_DEG 57.295779513082320876798154814105
-#define EULER 2.718281828459045235360287471352
-
 enum ARD_CHAR_ENUM_XWEZPiBoACuGnH{
   SERIAL = 0x0,
   DISPLAY = 0x1