I've just published draft #8 of SRFI 231. It was submitted by Bradley J. Lucier, author of the SRFI.

Here are Bradley's comments on the draft:

Many, many changes that I hope are correct and consistent to incorporate the notions of empty and zero-dimensional arrays into this SRFI.

Also, allow multiple array arguments for array-fold[lr]

Here is the commit summary:

• Initial treatment of zero-dimensional and empty intervals.
• More changes to allow empty and zero-dimensional arrays.
• {}*->array and array->{}* for empty and zero-dimensional arrays
• Implement multi-array array-fold{l|r}
• Add minimal array-fold[lr] tests
• Add checklist for zero-dimensional and empty domains.
• More updates for empty and zero-dimensional intervals
• Update treatment of zero-dimensional and empty arrays
• Document array-fold[lr] with multiple arrays.
• Include domain in error message when calling getter or setter of empty array
• Improve documentation for empty and zero-dimensional arrays
• Fix array-tile and array-append
• Note that this SRFI allows empty and zero-dimensional arrays.
• Improve error checking
• Small improvements
• Add examples.
• Delete temporary bookkeeping files
• Publish eighth draft. Change name.

Here's the diff:

https://github.com/scheme-requests-for-implementation/srfi-231/compare/draft-7..draft-8

Regards,


SRFI Editor