How can I set float precision?

Development Programming & Scripting
23

In case someone using C++ to solve this problem but do not want to use third-party library: use FString to avoid float inaccuracy.
Code:

static float GetDecimicalResult(float Number)
{
	constexpr int Accuracy = 100; //Just example, you can set accuracy as an function parameter
	const int BigRoundResult = FMath::RoundToInt(Number*Accuracy);
	const FString IntPart = FString::FromInt(BigRoundResult/Accuracy);
	const FString DigPart = FString::FromInt(BigRoundResult>0 ? BigRoundResult%Accuracy : (-1)*BigRoundResult%Accuracy);
	
	return UKismetStringLibrary::Conv_StringToFloat(IntPart + TEXT(".") + DigPart);
}
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