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Diffstat (limited to 'src/lib/gnat/s-imenne.ads')
| -rw-r--r-- | src/lib/gnat/s-imenne.ads | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/lib/gnat/s-imenne.ads b/src/lib/gnat/s-imenne.ads new file mode 100644 index 0000000000..3726720cd1 --- /dev/null +++ b/src/lib/gnat/s-imenne.ads @@ -0,0 +1,85 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . I M G _ E N U M _ N E W -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2000-2013, 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. -- +-- -- +------------------------------------------------------------------------------ + +-- Enumeration_Type'Image for all enumeration types except those in package +-- Standard (where we have no opportunity to build image tables), and in +-- package System (where it is too early to start building image tables). +-- Special routines exist for the enumeration types in these packages. + +-- This is the new version of the package, for use by compilers built after +-- Nov 21st, 2007, which provides procedures that avoid using the secondary +-- stack. The original package System.Img_Enum is maintained in the sources +-- for bootstrapping with older versions of the compiler which expect to find +-- functions in this package. + +pragma Compiler_Unit_Warning; + +package System.Img_Enum_New is + pragma Pure; + + procedure Image_Enumeration_8 + (Pos : Natural; + S : in out String; + P : out Natural; + Names : String; + Indexes : System.Address); + -- Used to compute Enum'Image (Str) where Enum is some enumeration type + -- other than those defined in package Standard. Names is a string with + -- a lower bound of 1 containing the characters of all the enumeration + -- literals concatenated together in sequence. Indexes is the address of + -- an array of type array (0 .. N) of Natural_8, where N is the number of + -- enumeration literals in the type. The Indexes values are the starting + -- subscript of each enumeration literal, indexed by Pos values, with an + -- extra entry at the end containing Names'Length + 1. The reason that + -- Indexes is passed by address is that the actual type is created on the + -- fly by the expander. The desired 'Image value is stored in S (1 .. P) + -- and P is set on return. The caller guarantees that S is long enough to + -- hold the result and that the lower bound is 1. + + procedure Image_Enumeration_16 + (Pos : Natural; + S : in out String; + P : out Natural; + Names : String; + Indexes : System.Address); + -- Identical to Set_Image_Enumeration_8 except that it handles types using + -- array (0 .. Num) of Natural_16 for the Indexes table. + + procedure Image_Enumeration_32 + (Pos : Natural; + S : in out String; + P : out Natural; + Names : String; + Indexes : System.Address); + -- Identical to Set_Image_Enumeration_8 except that it handles types using + -- array (0 .. Num) of Natural_32 for the Indexes table. + +end System.Img_Enum_New; |