Replacing custom String.toInt() function with a call to atol().

cores/arduino/WCharacter.h

@@ -20,8 +20,7 @@
 #ifndef Character_h
 #define Character_h
 
-
-#include "WProgram.h"
+#include <ctype.h>
 
 // WCharacter.h prototypes
 inline boolean isAlphaNumeric(int c) __attribute__((always_inline));
@@ -117,8 +116,8 @@ inline boolean isPunct(int c)
 
 
 // Checks for white-space characters. For the avr-libc library, 
-// these are: space, formfeed (’\f’), newline (’\n’), carriage 
-// return (’\r’), horizontal tab (’\t’), and vertical tab (’\v’).
+// these are: space, formfeed ('\f'), newline ('\n'), carriage 
+// return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
 inline boolean isSpace(int c)
 {
   return ( isspace (c) == 0 ? false : true);

cores/arduino/WProgram.h

@@ -10,6 +10,7 @@
 #include "wiring.h"
 
 #ifdef __cplusplus
+#include "WCharacter.h"
 #include "WString.h"
 #include "HardwareSerial.h"
 

cores/arduino/WString.cpp

@@ -437,16 +437,5 @@ void String::toCharArray(char *buf, unsigned int bufsize)
 
 
 long String::toInt() {
-  String temp = _buffer;
-  long value = 0;
-  
-  for (unsigned int charPos = 0; charPos < _length; charPos++) {
-    int thisChar = temp[charPos];
-    if (isdigit(thisChar)) {
-      value *= 10;
-      value += (thisChar - '0');
-    }
-  }
-  
-  return value;
+  return atol(_buffer);
 }