add String.toFloat

1 files changed, 7 insertions, 0 deletions

diff --git a/cores/arduino/WString.h b/cores/arduino/WString.h
index b587a3d..2d372c5 100644
--- a/cores/arduino/WString.h
+++ b/cores/arduino/WString.h
@@ -68,6 +68,8 @@ public:
 	explicit String(unsigned int, unsigned char base=10);
 	explicit String(long, unsigned char base=10);
 	explicit String(unsigned long, unsigned char base=10);
+    explicit String(float, int decimalPlaces=6);
+    explicit String(double, int decimalPlaces=6);
 	~String(void);
 
 	// memory management
@@ -100,6 +102,8 @@ public:
 	unsigned char concat(unsigned int num);
 	unsigned char concat(long num);
 	unsigned char concat(unsigned long num);
+	unsigned char concat(float num);
+	unsigned char concat(double num);
 	
 	// if there's not enough memory for the concatenated value, the string
 	// will be left unchanged (but this isn't signalled in any way)
@@ -120,6 +124,8 @@ public:
 	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num);
 	friend StringSumHelper & operator + (const StringSumHelper &lhs, long num);
 	friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, float num);
+	friend StringSumHelper & operator + (const StringSumHelper &lhs, double num);
 
 	// comparison (only works w/ Strings and "strings")
 	operator StringIfHelperType() const { return buffer ? &String::StringIfHelper : 0; }
@@ -172,6 +178,7 @@ public:
 
 	// parsing/conversion
 	long toInt(void) const;
+	float toFloat(void) const;
 
 protected:
 	char *buffer;	        // the actual char array