gcc/ada/g-comver.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                G N A T . C O M P I L E R _ V E R S I O N                 --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                     Copyright (C) 2002-2005, AdaCore                     --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This package provides a routine for obtaining the version number of the
  35 --  GNAT compiler used to compile the program. It relies on the generated
  36 --  constant in the binder generated package that records this information.
  37
  38 --  Note: to use this package you must first instantiate it, for example:
  39
  40 --    package CVer is new GNAT.Compiler_Version;
  41
  42 --  and then you use the function in the instantiated package (Cver.Version).
  43 --  The reason that this unit is generic is that otherwise the direct attempt
  44 --  to import the necessary variable from the binder file causes trouble when
  45 --  building a shared library, since the symbol is not available.
  46
  47 --  Note: this unit is only useable if the main program is written in Ada.
  48 --  It cannot be used if the main program is written in foreign language.
  49
  50 generic
  51 package GNAT.Compiler_Version is
  52    pragma Pure;
  53
  54    function Version return String;
  55    --  This function returns the version in the form "v.vvx (yyyyddmm)".
  56    --  Here v.vv is the main version number (e.g. 3.16), x is the version
  57    --  designator (e.g. a1 in 3.16a1), and yyyyddmm is the date in ISO form.
  58    --  An example of the returned value would be "3.16w (20021029)". The
  59    --  version is actually that of the binder used to bind the program,
  60    --  which will be the same as the compiler version if a consistent
  61    --  set of tools is used to build the program.
  62
  63 end GNAT.Compiler_Version;