Indicators can only have int or double inputs

[stfl]

Problem

The EA input fields are of type double. Transparently using them for int is no problem.
string or bool does not work

If an Indicator has string or bool values mixed in with other inputs the iCustom initialization method fails and the Indicator cannot be instantiated.

inputs[] is simply copied to m_params

backtestd-expert/Include/backtestd/SignalClass/CustomSignal.mqh

Lines 174 to 186 in 3860f55

	void CCustomSignal::ParamsFromInput(double &inputs[]) {
	uint size = ArraySize(inputs);
	m_params_size = size+1;
	ArrayResize(m_params, m_params_size);
	m_params[0].type=TYPE_STRING;
	m_params[0].string_value=m_indicator_file;
	for(uint i=0; i<size; i++) {
	m_params[i+1].type=TYPE_DOUBLE;
	m_params[i+1].double_value=inputs[i];
	}
	}

and m_params is then used for m_indicator.Create()

backtestd-expert/Include/backtestd/SignalClass/CustomSignal.mqh

Lines 235 to 253 in 3860f55

	bool CCustomSignal::InitCustomIndicator(CIndicators *indicators)
	{
	//--- check pointer
	if(indicators==NULL)
	return(false);
	//--- add object to collection
	if(!indicators.Add(GetPointer(m_indicator)))
	{
	printf(__FUNCTION__+": error adding object");
	return(false);
	}
	if(!m_indicator.Create(m_symbol.Name(), m_period, m_indicator_type, m_params_size, m_params))
	{
	printf(__FUNCTION__+": error initializing object");
	return(false);
	}
	//--- ok
	return(true);
	}

Workaround

Simply comment out string and bool inputs in the Indicator source and compile again ;)
string or bool inputs have no meaning for backtesting anyway..
bool can also be converted to float and typecasted to bool ;)