WString: add `toDouble`

`toFloat` internally converts into double and then truncates into a
float, so why not add a method to return the double?

1 files changed, 7 insertions, 2 deletions

diff --git a/cores/arduino/WString.cpp b/cores/arduino/WString.cpp
index 9975303..998cf22 100644
--- a/cores/arduino/WString.cpp
+++ b/cores/arduino/WString.cpp
@@ -740,6 +740,11 @@ 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;
+}
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