虚幻引擎C ++中的TArray浮点错误

Question

C++ and Unreal newbie here. I have a class with a function I'm calling from a Blueprint. I want to create an array of floats (converted from a string) and push a value from Blueprint to it, but I'm getting an error I don't quite understand.

I'm declaring the array like this in my header file:

private:
    TArray<float> SensorValues[5];

Then I try to push a value from my Blueprint in the cpp file:

void Test::UpdateSensor(FString SensorValue)
{
    float sensorVal = FCString::Atof(*SensorValue);
    SensorValues.Push(sensorVal);
}

Which results in this error:

   error C2228: left of '.Push' must have class/struct/union

Any guidance?

Answer 1

我认为您忘记了包含标题：D

Answer 2

According to documentation TArray is dynamic array, so you should have tried

private: TArray<float> SensorValues;

besides

private: TArray<float> SensorValues[5];