WString: add toDouble (#293)

sandeepmistry · calvinatintel · commit c134154a1e06 · 2016-09-15T16:22:34.000-07:00
Port of arduino/Arduino#5362
diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp
@@ -810,6 +810,11 @@ long String::toInt(void) const
 
 float String::toFloat(void) const
 {
-        if (buffer) return float(atof(buffer));
-        return 0;
+	return (float)toDouble();
+}
+
+double String::toDouble(void) const
+{
+	if (buffer) return atof(buffer);
+	return 0;
 }
diff --git a/cores/arduino/WString.h b/cores/arduino/WString.h
@@ -199,6 +199,7 @@ class String
 	// parsing/conversion
 	long toInt(void) const;
 	float toFloat(void) const;
+	double toDouble(void) const;
 	char * getCSpec(int base, bool issigned, bool islong);
 
 protected:

Original file line number	Diff line number	Diff line change
`@@ -810,6 +810,11 @@ long String::toInt(void) const`
`810`	`810`
`811`	`811`	`float String::toFloat(void) const`
`812`	`812`	`{`
`813`		`- if (buffer) return float(atof(buffer));`
`814`		`- return 0;`
	`813`	`+ return (float)toDouble();`
	`814`	`+}`
	`815`	`+`
	`816`	`+double String::toDouble(void) const`
	`817`	`+{`
	`818`	`+ if (buffer) return atof(buffer);`
	`819`	`+ return 0;`
`815`	`820`	`}`