Using INTEGER(8) in an INTEGER(4) interface

Hi,

I have a question regarding the use of integers of different kind. I am using a library (Intel MKL) which requires INTEGER(4). However, calling this library with variables of kind INTEGER(8) produces identical results. 

I have also tested this myself by calling my own method taking an INTEGER(4) with an INTEGER(8).

However, the other way around does not work: calling a method taking an INTEGER(8) with an INTEGER(4).

Is this behavior guaranteed with Intel Fortran?

Jens