Bulletin number:  60
Products affected: D700E
Description: Usage error
Component: compiler
Date: Fri May 18 11:18:15 BST 1990
-----

The following

PROC test([]CHAN OF ANY c)
  INT x:
  SEQ
    c[0] ? x
    c[1] ! x
:

causes the compiler to give a "usage error" message because channel c
is already used for input.  If the header is changed to

PROC test([2]CHAN OF ANY c)

the compiler can cope because it knows how big an array to deal with.