fortran, allow size of parameter array to be inferred?

allow size of parameter array to be inferred?

Author	Message
beliav.. #1 / 2	allow size of parameter array to be inferred? I wish fortran allowed the compiler to infer the size of a parameter array from the right-hand-side of the assignment, so that (for example) integer, parameter :: ivec(:) = (/1,4,9/) would be equivalent to integer, parameter :: ivec(3) = (/1,4,9/) This would be similar to the currently allowed usage character (len=*), parameter :: word = "dog" although I understand the difference -- word is a scalar. Has the Fortran standards committee considered this idea?
Mon, 07 Jul 2008 05:09:23 GMT

Dick Hendrickso #2 / 2	allow size of parameter array to be inferred? Quote: > I wish Fortran allowed the compiler to infer the size of a parameter > array from the right-hand-side of the assignment, so that (for example) > integer, parameter :: ivec(:) = (/1,4,9/) > would be equivalent to > integer, parameter :: ivec(3) = (/1,4,9/) > This would be similar to the currently allowed usage > character (len=), parameter :: word = "dog" > although I understand the difference -- word is a scalar. Has the > Fortran standards committee considered this idea? Yes, it's on the list of things to go into F2008. In fact, it has passed on from specs to actual edits to the standard. BUT, nothing is final until it's final. This is a pretty small thing, but there's always a chance that things will come or go ar get changed before the final version. The paper that describes it is 05-194r1 if you want to see it. (Actually, that's also the number even if you don't want to see it. ;) ) The form is a little different from your example. It allows any number of dimensions, and the upper bound for each must be an asterisk. So you'd do integer, parameter :: ivec() = (/1,4,9/) or perhaps integer, parameter :: ivec(-137:*) = (/1,4,9/) Dick Hendrickson
Mon, 07 Jul 2008 05:36:18 GMT

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