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Phillip Helbig wrote: > > I think there is another issue involved here. Most folks don't know > what precision they actually need. They try out something and it works. > The problem is, what one gets is the smallest data type which complies > with the constraints. Perhaps this is, say, 64 bits on one machine. > Obviously, this might not work if a 32-bit type is available. So much > for portability. In this example, REAL MIGHT suffer from the same > problem (though note that the default size of REAL is not necessarily > the same as "the number of bits the machine is"---it is on Cray, it > isn't on VMS); my point is that KIND doesn't solve all portability > problems. Certainly, and it does nothing for you when calling libraries, e.g. for BLAS it's DGEMM I generally want on my workstation here, but for the Cray it's SGEMM. Hopefully once CoCo comes along this problem will disapear, Ian %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%