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Diffstat (limited to 'gcc/ada/i-fortra.adb')
| -rw-r--r-- | gcc/ada/i-fortra.adb | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/gcc/ada/i-fortra.adb b/gcc/ada/i-fortra.adb new file mode 100644 index 000000000..532089d71 --- /dev/null +++ b/gcc/ada/i-fortra.adb @@ -0,0 +1,142 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- I N T E R F A C E S . F O R T R A N -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2009, 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 3, 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. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package body Interfaces.Fortran is + + ------------ + -- To_Ada -- + ------------ + + -- Single character case + + function To_Ada (Item : Character_Set) return Character is + begin + return Character (Item); + end To_Ada; + + -- String case (function returning converted result) + + function To_Ada (Item : Fortran_Character) return String is + T : String (1 .. Item'Length); + + begin + for J in T'Range loop + T (J) := Character (Item (J - 1 + Item'First)); + end loop; + + return T; + end To_Ada; + + -- String case (procedure copying converted string to given buffer) + + procedure To_Ada + (Item : Fortran_Character; + Target : out String; + Last : out Natural) + is + begin + if Item'Length = 0 then + Last := 0; + return; + + elsif Target'Length = 0 then + raise Constraint_Error; + + else + Last := Target'First - 1; + + for J in Item'Range loop + Last := Last + 1; + + if Last > Target'Last then + raise Constraint_Error; + else + Target (Last) := Character (Item (J)); + end if; + end loop; + end if; + end To_Ada; + + ---------------- + -- To_Fortran -- + ---------------- + + -- Character case + + function To_Fortran (Item : Character) return Character_Set is + begin + return Character_Set (Item); + end To_Fortran; + + -- String case (function returning converted result) + + function To_Fortran (Item : String) return Fortran_Character is + T : Fortran_Character (1 .. Item'Length); + + begin + for J in T'Range loop + T (J) := Character_Set (Item (J - 1 + Item'First)); + end loop; + + return T; + end To_Fortran; + + -- String case (procedure copying converted string to given buffer) + + procedure To_Fortran + (Item : String; + Target : out Fortran_Character; + Last : out Natural) + is + begin + if Item'Length = 0 then + Last := 0; + return; + + elsif Target'Length = 0 then + raise Constraint_Error; + + else + Last := Target'First - 1; + + for J in Item'Range loop + Last := Last + 1; + + if Last > Target'Last then + raise Constraint_Error; + else + Target (Last) := Character_Set (Item (J)); + end if; + end loop; + end if; + end To_Fortran; + +end Interfaces.Fortran; |