How to convert boolean (True/False) to a float value

Dear author
I am having a problem about converting a boolean value in JSON object to a float value.
Here is my code

float getData(const char* payload){
    StaticJsonBuffer<MQTT_MAX_PAYLOAD_SIZE> jsonBuffer;
    JsonObject& root = jsonBuffer.parseObject(payload);
    if (!root.success()) {
        Serial.println("parseMsg() failed");
        return;
    }

    if (root["data0"] == true){
        return 1;
    }else if(root["data0"] == false){
        return 0;
    }else{
        return root["data0"];
    };
}

I test this code and saw that:

• When i send a true/false value, the return value is 1/0 successfully
• However, when i send a float value, the return is always equal to 1.

Can you help me ? Thank you so much

Update
I test the code below with the result:

• When i send a true/false value, the return is always equal to 0
• When i send a float value, the return is right value.

float getData(const char* payload){
    StaticJsonBuffer<MQTT_MAX_PAYLOAD_SIZE> jsonBuffer;
    JsonObject& root = jsonBuffer.parseObject(payload);
    if (!root.success()) {
        Serial.println("parseMsg() failed");
        return;
    }
    return root["data0"];
}

[bblanchon]

Hello @duythang,

This is a bug, I may need a few days to find the time to fix it.
Meanwhile, you can test the type of the value before reading the content.

Sorry for the inconvenience.

Regards,
Benoit

@bblanchon Thank you so much