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Re: IDL -> Fortran: Summary [message #4909]

Fri, 25 August 1995 00:00

thompson
Messages: 584
Registered: August 1991

Senior Member

dlmatt@uss-enterprise.bu.edu (Dr. David L. Matthews) writes:

> ... In
> general the data structures are different in IDL and Fortran -- one is
> row-major and the other column-major, just to start.

I keep seeing this pop up, but it is not true--not on any version of FORTRAN
that I've ever encountered. In both IDL and FORTRAN, the first dimension of an
array is the most quickly changing index. It is, however, true that both IDL
and FORTRAN differ from the way C handles arrays: in C it is the last dimension
of the array which changes most rapidly.

William Thompson

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