Improvement of enums in some cases. Now it is coded that they must occupy 1 byte instead of 4.

Author: KOLANICH

api/Common.h

@@ -6,25 +6,31 @@
 extern "C"{
 #endif
 
+#ifdef __cplusplus
+  #define ARD_CHAR_ENUM_XWEZPiBoACuGnH : char
+#else
+  #define ARD_CHAR_ENUM_XWEZPiBoACuGnH __attribute__ ((__packed__))
+#endif
+
 void yield(void);
 
-typedef enum {
+typedef enum ARD_CHAR_ENUM_XWEZPiBoACuGnH{
   LOW     = 0,
   HIGH    = 1,
   CHANGE  = 2,
   FALLING = 3,
   RISING  = 4,
 } PinStatus;
 
-typedef enum {
+typedef enum ARD_CHAR_ENUM_XWEZPiBoACuGnH{
   INPUT            = 0x0,
   OUTPUT           = 0x1,
   INPUT_PULLUP     = 0x2,
   INPUT_PULLDOWN   = 0x3,
   OUTPUT_OPENDRAIN = 0x4,
 } PinMode;
 
-typedef enum {
+typedef enum ARD_CHAR_ENUM_XWEZPiBoACuGnH{
   LSBFIRST = 0,
   MSBFIRST = 1,
 } BitOrder;

api/HardwareSPI.h

@@ -26,7 +26,7 @@
 
 namespace arduino {
 
-typedef enum {
+typedef enum ARD_CHAR_ENUM_XWEZPiBoACuGnH {
   SPI_MODE0 = 0,
   SPI_MODE1 = 1,
   SPI_MODE2 = 2,

api/Stream.h

@@ -39,7 +39,7 @@ namespace arduino {
 // This enumeration provides the lookahead options for parseInt(), parseFloat()
 // The rules set out here are used until either the first valid character is found
 // or a time out occurs due to lack of input.
-enum LookaheadMode{
+enum LookaheadMode: uint8_t {
     SKIP_ALL,       // All invalid characters are ignored.
     SKIP_NONE,      // Nothing is skipped, and the stream is not touched unless the first waiting character is valid.
     SKIP_WHITESPACE // Only tabs, spaces, line feeds & carriage returns are skipped.
@@ -130,4 +130,4 @@ class Stream : public Print
 
 }
 
-using arduino::Stream;
+using arduino::Stream;