GSLL's underlying system for generalized array, the "Grid Structured Data" (gsd) has been reorganized. There are some user-visible changes: 1. It is simpler to exchange arrays between foreign libraries, and lisp code. For example, a foreign array may be created in Lisp, passed to GSLL, then passed to another foreign library, then processed once again in Lisp. 2. Grid operations include common array operations for mathematical use, such as row, column, diagonal, transpose, slice and others; these are built on the more general map-grid which in turn is built on map-n-grids, so that more complicated array operations can be defined generically. 3. The function #'grid:copy will copy an array, possibly with a change of grid type ('array to 'foreign-array or vice versa), or other property. 4. Grids types possible at present are CL arrays and foreign arrays. 5. On SBCL, ECL, CCL, Allegro, and Lispworks, foreign-arrays are optionally built using static-vectors (http://gitorious.org/iolib/static-vectors). For foreign arrays made in Lisp (not by foreign libraries), the function cl-array is the same array in Lisp. Note that it is not a copy; the contents of memory are the same. 6. Changes 1. The grid and foreign-array systems both use the grid package; the c-array package doesn't exist any more. 2. All the array-related definitions of GSLL are now in the system foreign-array, including the individual classes such as grid:vector-double-float. To access elements, use grid:gref (gsl:maref has been removed). 3. Internally, foreign-array objects have a slot foreign-metadata. Each application is free to add properties to this list; GSLL adds 'gsll:mpointer and 'gsll:block-data.

You should do a fresh pull of both GSLL and GSD.

Liam