iclose() return 0 , 0 is int or double ?

[zbj]

double  iClose(    string           symbol,          // symbol    int              timeframe,       // timeframe    int              shift            // shift    ); Returned value Close price value for the bar of specified symbol with timeframe and shift. If local history is empty (not loaded), function returns 0. To check errors, one has to call the GetLastError() function.

 return 0 , 0  is int or double ?

[Irwan Adnan]

is that really matter? BTW 0 is not a price.