JsonElement::getAsFloat() const

Function Usage

Uses errno to indicate an invalid call if the JsonElement node is not of a numeric type, or otherwise, returns the float value of the node.

Function Syntax

floatJsonElement::getAsFloat()const;

Return Value

• Success: the float value of the node.
• Failure: an uninitialized float value.

If the data type of the node is not float, data type conversion occurs, which may cause precision loss.