The main differences between ALGOL 68 and 68S, as summarised from Appendix 4 of the Informal Introduction, include: • No
union • No
flex, but
strings are handled specially • No arrays inside structures (but references to arrays were allowed) and a similar restriction on arrays of arrays (multidimensional arrays are nonetheless permitted) • Limits on use of
long and
short to aid implementing on small computers • No
heap • No
parallel processing • Limits on the order of declaration and other small syntactic differences to allow one-pass compiling • No
formats ==References==