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Diffstat (limited to 'gcc-4.3.1/gcc/ada/s-valboo.adb')
-rw-r--r-- | gcc-4.3.1/gcc/ada/s-valboo.adb | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/s-valboo.adb b/gcc-4.3.1/gcc/ada/s-valboo.adb new file mode 100644 index 000000000..5d23037e5 --- /dev/null +++ b/gcc-4.3.1/gcc/ada/s-valboo.adb @@ -0,0 +1,61 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . V A L _ B O O L -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005, Free Software Foundation, Inc. -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +with System.Val_Util; use System.Val_Util; + +package body System.Val_Bool is + + ------------------- + -- Value_Boolean -- + ------------------- + + function Value_Boolean (Str : String) return Boolean is + F : Natural; + L : Natural; + S : String (Str'Range) := Str; + + begin + Normalize_String (S, F, L); + + if S (F .. L) = "TRUE" then + return True; + + elsif S (F .. L) = "FALSE" then + return False; + + else + raise Constraint_Error; + end if; + end Value_Boolean; + +end System.Val_Bool; |