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Diffstat (limited to 'gcc-4.4.0/gcc/ada/g-comver.adb')
| -rw-r--r-- | gcc-4.4.0/gcc/ada/g-comver.adb | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gcc-4.4.0/gcc/ada/g-comver.adb b/gcc-4.4.0/gcc/ada/g-comver.adb new file mode 100644 index 000000000..2d7b909a8 --- /dev/null +++ b/gcc-4.4.0/gcc/ada/g-comver.adb @@ -0,0 +1,72 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T . C O M P I L E R _ V E R S I O N -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2002-2005,2008 AdaCore -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package provides a routine for obtaining the version number of the +-- GNAT compiler used to compile the program. It relies on the generated +-- constant in the binder generated package that records this information. + +package body GNAT.Compiler_Version is + + Ver_Len_Max : constant := 64; + -- This is logically a reference to Gnatvsn.Ver_Len_Max but we cannot + -- import this directly since run-time units cannot WITH compiler units. + + Ver_Prefix : constant String := "GNAT Version: "; + -- Prefix generated by binder + + GNAT_Version : constant String (1 .. Ver_Len_Max + Ver_Prefix'Length); + pragma Import (C, GNAT_Version, "__gnat_version"); + + ------------- + -- Version -- + ------------- + + function Version return String is + begin + -- Search for terminating right paren or NUL ending the string + + for J in Ver_Prefix'Length + 1 .. GNAT_Version'Last loop + if GNAT_Version (J) = ')' then + return GNAT_Version (Ver_Prefix'Length + 1 .. J); + end if; + if GNAT_Version (J) = Character'Val (0) then + return GNAT_Version (Ver_Prefix'Length + 1 .. J - 1); + end if; + end loop; + + -- This should not happen (no right paren or NUL found) + + return GNAT_Version; + end Version; + +end GNAT.Compiler_Version; |