Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/g-comver.adb @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 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 -- B o d y -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 2002-2010, 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 3, 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. -- | |
| 17 -- -- | |
| 18 -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 -- -- | |
| 22 -- You should have received a copy of the GNU General Public License and -- | |
| 23 -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 -- <http://www.gnu.org/licenses/>. -- | |
| 26 -- -- | |
| 27 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 28 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 29 -- -- | |
| 30 ------------------------------------------------------------------------------ | |
| 31 | |
| 32 -- This package provides a routine for obtaining the version number of the | |
| 33 -- GNAT compiler used to compile the program. It relies on the generated | |
| 34 -- constant in the binder generated package that records this information. | |
| 35 | |
| 36 package body GNAT.Compiler_Version is | |
| 37 | |
| 38 Ver_Len_Max : constant := 256; | |
| 39 -- This is logically a reference to Gnatvsn.Ver_Len_Max but we cannot | |
| 40 -- import this directly since run-time units cannot WITH compiler units. | |
| 41 | |
| 42 Ver_Prefix : constant String := "GNAT Version: "; | |
| 43 -- This is logically a reference to Gnatvsn.Ver_Prefix but we cannot | |
| 44 -- import this directly since run-time units cannot WITH compiler units. | |
| 45 | |
| 46 GNAT_Version : constant String (1 .. Ver_Len_Max + Ver_Prefix'Length); | |
| 47 pragma Import (C, GNAT_Version, "__gnat_version"); | |
| 48 | |
| 49 ------------- | |
| 50 -- Version -- | |
| 51 ------------- | |
| 52 | |
| 53 function Version return String is | |
| 54 begin | |
| 55 -- Search for terminating right paren or NUL ending the string | |
| 56 | |
| 57 for J in Ver_Prefix'Length + 1 .. GNAT_Version'Last loop | |
| 58 if GNAT_Version (J) = ')' then | |
| 59 return GNAT_Version (Ver_Prefix'Length + 1 .. J); | |
| 60 end if; | |
| 61 | |
| 62 if GNAT_Version (J) = Character'Val (0) then | |
| 63 return GNAT_Version (Ver_Prefix'Length + 1 .. J - 1); | |
| 64 end if; | |
| 65 end loop; | |
| 66 | |
| 67 -- This should not happen (no right paren or NUL found) | |
| 68 | |
| 69 return GNAT_Version; | |
| 70 end Version; | |
| 71 | |
| 72 end GNAT.Compiler_Version; |