From 50bfce889e07711450adace72d5eed785d71ee2e Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Sun, 4 Jul 2010 16:36:52 +0000
Subject: Modifying String from new/delete to malloc()/free().  Also
 #include'ing WString.h from WProgram.h.

---
 cores/arduino/WProgram.h  |  1 +
 cores/arduino/WString.cpp |  4 ++--
 cores/arduino/WString.h   | 12 ++++++------
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/cores/arduino/WProgram.h b/cores/arduino/WProgram.h
index 39dc611..81a1a9b 100755
--- a/cores/arduino/WProgram.h
+++ b/cores/arduino/WProgram.h
@@ -10,6 +10,7 @@
 #include "wiring.h"
 
 #ifdef __cplusplus
+#include "WString.h"
 #include "HardwareSerial.h"
 
 uint16_t makeWord(uint16_t w);
diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp
index 667a304..91d4f15 100644
--- a/cores/arduino/WString.cpp
+++ b/cores/arduino/WString.cpp
@@ -113,7 +113,7 @@ const String & String::operator=( const String &rhs )
 
   if ( rhs._length > _length )
   {
-    delete [] _buffer;
+    free(_buffer);
     getBuffer( rhs._length );
   }
   _length = rhs._length;
@@ -139,7 +139,7 @@ const String & String::operator+=( const String &other )
     char *temp = _buffer;
     getBuffer( _length );
     strcpy( _buffer, temp );
-    delete [] temp;
+    free(temp);
   }
   strcat( _buffer, other._buffer );
   return *this;
diff --git a/cores/arduino/WString.h b/cores/arduino/WString.h
index c93d493..205c1f0 100644
--- a/cores/arduino/WString.h
+++ b/cores/arduino/WString.h
@@ -36,7 +36,7 @@ class String
     explicit String( const unsigned int, const int base=10 );
     explicit String( const long, const int base=10 );
     explicit String( const unsigned long, const int base=10 );
-    virtual ~String() { delete [] _buffer; }
+    ~String() { free(_buffer); }
 
     // operators
     const String & operator = ( const String &rhs );
@@ -50,7 +50,7 @@ class String
     int	operator >=( const String &rhs ) const;
     char operator []( unsigned int index ) const;
     char& operator []( unsigned int index );
-//    operator const char *() const { return _buffer; }
+    //operator const char *() const { return _buffer; }
 
     // general methods
     char charAt( unsigned int index ) const;
@@ -84,8 +84,8 @@ class String
 
   protected:
     char *_buffer;	     // the actual char array
-    unsigned int _capacity;  // the array length
-    unsigned int _length;    // the String length
+    unsigned int _capacity;  // the array length minus one (for the '\0')
+    unsigned int _length;    // the String length (not counting the '\0')
 
     void getBuffer(unsigned int maxStrLen);
     void doubleBuffer( );
@@ -98,7 +98,7 @@ class String
 inline void String::getBuffer(unsigned int maxStrLen)
 {
   _capacity = maxStrLen;
-  _buffer = new char[_capacity + 1];
+  _buffer = (char *) malloc(_capacity + 1);
 }
 
 // double the buffer size
@@ -107,7 +107,7 @@ inline void String::doubleBuffer( )
   char *temp = _buffer;
   getBuffer( ++_capacity * 2 );
   strcpy( _buffer, temp );
-  delete [] temp;
+  free(temp);
 }
 
 inline String operator+( String lhs, const String &rhs )
-- 
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