GNAT 3.07 public release

[dewar@merv.cs.nyu.edu (Robert Dewar)]

The following GNAT 3.07 releases are now available on cs.nyu.edu, and
will shortly be propagated to the various mirror sites:

  Alpha Digital Unix
  HP HP-UX
  Linux
  SGI IRIX
  Sparc Solaris
  Sparc SunOS

Additional ports will be made available as they are completed. The
following is an excerpt from the features file describing the latest
features in GNAT version 3.07:

Latest features in GNAT version 3.07
====================================

   GNAT now checks for the case of a body file present when the spec does
   not require a body. GNAT always diagnosed the error when the body was
   compiled, but if only the spec was compiled, the suspicious body was
   ignored. The presence of a body file when no body is allowed is now
   considered an error in Ada 95 mode, and a warning in Ada 83 mode.

   Packed arrays with bounds depending on a discriminant now work correctly

   The DEC pragmas have been implemented. Those of interest to GNAT ports
   in general are as follows (see below for full documentation)
       Common_Object
       Component_Alignment
       Export_Function
       Export_Object
       Export_Procedure
       Export_Valued_Procedure
       Import_Function
       Import_Object
       Import_Procedure
       Import_Valued_Procedure
       Suppress_All

   The DEC attributes have been implemented. Those of interest to GNAT ports
   in general are as follows (see below for full documentation)
       Bit
       Machine_Size
       Null_Parameter
       Type_Class

   Attribute Mechanism_Code allows determination of the parameter passing
   mechanism chosen by GNAT, as possibly controlled by the Import, Export
   and C_Pass_By_Copy pragmas.

   Pragma Extend_System allows transparent extension of package System to
   accomodate definitions from other implementations of Ada.

   Machine code insertions have been completely implemented. A new section
   in gnatinfo.txt describes the use. Both code statements as such, and
   also intrinsic calls are available. The latter allow interspersing
   machine instructions in Ada code. Inlining of machine code procedures
   is fully supported.

   The pragma C_Pass_By_Copy is implemented in a manner that is completely
   compatible with the Intermetrics implementation of this pragma.

   The default mechanism for passing records to foreign convention subprograms
   is now by-reference. This can be modified by either use of one of the
   DEC extended Import/Export pragmas, or by use of the C_Pass_By_Copy pragma.

   Further extended support for representation clauses, including more cases
   of misaligned fields, and non-standard layouts. Record representation
   clauses no longer require that the position of all fields be specified.

   Pragma Error_Monitoring has been removed. This pragma was not used and had
   a number of conceptual and implementation problems.

These releases also contain the initial draft versions of the two GNAT
manuals, the GNAT users guide and the GNAT reference manual, in various
formats.