Craig Tierney wrote: <snippage /> Let me rephrase: Integers are 32 bits in FORTRAN on my system, which is using gfortran 4.2.3 as compiler, targeting the i386 architecture. IIRC, the CDC 6600 (and compatibles) had a 48 bit integer format as default. So, yes it does vary. I guess I was rolling the dice a little. -- Geoffrey D. Jacobs