George Gwilt writes: > Turbo cannot set sliced arrays as parameters to S*BASIC procedures or > functions. This is because of the way the array descriptors are defined. However it > is theoretically possible to set a sliced array as parameter to a machine code > extension since Turbo defines an S*BASIC descriptor. Unfortunately I cannot > see at the moment a way of doing this in practice. Also I had thought that > programs could be fairly easily written to avoid slicing.
There are often good reasons for using array slices. Although work-arounds are usually possible, they may require shifting data into other arrays which is both time and space consuming. An array descriptor merely presents a logical view of the data. If Turbo at present just sees that a parameter is an array and ignores any indices, then parsing those indices would have to be implemented - something that could be a major job! If, however, the indices are accessable to Turbo, then its simply a matter of creating a descriptor based on those indices - not much more difficult than creating the descriptor for the whole array? Per _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
