c56a9ba447
2010-10-22 Thomas Quinot <quinot@adacore.com> * exp_ch5.adb, sem_ch5.adb, sinfo.ads, snames.ads-tmpl, par-ch5.adb: Minor reformatting. 2010-10-22 Geert Bosch <bosch@adacore.com> * stand.ads: Fix typo in comment. 2010-10-22 Ed Schonberg <schonberg@adacore.com> * sem_ch6.adb: Enable in-out parameter for functions. 2010-10-22 Ed Schonberg <schonberg@adacore.com> * sem_ch4.adb (Analyze_Quantified_Expression): Handle properly loop iterators that are transformed into container iterators after analysis. * exp_ch4.adb (Expand_N_Quantified_Expression): Handle properly both iterator forms before rewriting as a loop. 2010-10-22 Brett Porter <porter@adacore.com> * a-locale.adb, a-locale.ads, locales.c: New files. * Makefile.rtl: Add a-locale * gcc-interface/Makefile.in: Add locales.c From-SVN: r165812
464 lines
18 KiB
Ada
464 lines
18 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S T A N D --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2010, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package contains the declarations of entities in package Standard,
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-- These values are initialized either by calling CStand.Create_Standard,
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-- or by calling Stand.Tree_Read.
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with Types; use Types;
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package Stand is
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type Standard_Entity_Type is (
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-- This enumeration type contains an entry for each name in Standard
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-- Package names
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S_Standard,
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S_ASCII,
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-- Types and subtypes defined in package Standard (in the order in which
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-- they appear in the RM, so that the declarations are in the right
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-- order for the purposes of ASIS traversals
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S_Boolean,
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S_Short_Short_Integer,
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S_Short_Integer,
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S_Integer,
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S_Long_Integer,
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S_Long_Long_Integer,
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S_Natural,
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S_Positive,
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S_Short_Float,
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S_Float,
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S_Long_Float,
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S_Long_Long_Float,
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S_Character,
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S_Wide_Character,
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S_Wide_Wide_Character,
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S_String,
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S_Wide_String,
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S_Wide_Wide_String,
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S_Duration,
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-- Enumeration literals for type Boolean
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S_False,
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S_True,
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-- Exceptions declared in package Standard
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S_Constraint_Error,
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S_Numeric_Error,
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S_Program_Error,
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S_Storage_Error,
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S_Tasking_Error,
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-- Binary Operators declared in package Standard
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S_Op_Add,
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S_Op_And,
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S_Op_Concat,
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S_Op_Concatw,
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S_Op_Concatww,
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S_Op_Divide,
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S_Op_Eq,
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S_Op_Expon,
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S_Op_Ge,
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S_Op_Gt,
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S_Op_Le,
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S_Op_Lt,
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S_Op_Mod,
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S_Op_Multiply,
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S_Op_Ne,
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S_Op_Or,
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S_Op_Rem,
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S_Op_Subtract,
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S_Op_Xor,
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-- Unary operators declared in package Standard
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S_Op_Abs,
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S_Op_Minus,
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S_Op_Not,
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S_Op_Plus,
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-- Constants defined in package ASCII (with value in hex).
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-- First the thirty-two C0 control characters)
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S_NUL, -- 16#00#
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S_SOH, -- 16#01#
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S_STX, -- 16#02#
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S_ETX, -- 16#03#
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S_EOT, -- 16#04#
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S_ENQ, -- 16#05#
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S_ACK, -- 16#06#
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S_BEL, -- 16#07#
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S_BS, -- 16#08#
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S_HT, -- 16#09#
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S_LF, -- 16#0A#
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S_VT, -- 16#0B#
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S_FF, -- 16#0C#
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S_CR, -- 16#0D#
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S_SO, -- 16#0E#
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S_SI, -- 16#0F#
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S_DLE, -- 16#10#
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S_DC1, -- 16#11#
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S_DC2, -- 16#12#
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S_DC3, -- 16#13#
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S_DC4, -- 16#14#
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S_NAK, -- 16#15#
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S_SYN, -- 16#16#
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S_ETB, -- 16#17#
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S_CAN, -- 16#18#
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S_EM, -- 16#19#
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S_SUB, -- 16#1A#
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S_ESC, -- 16#1B#
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S_FS, -- 16#1C#
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S_GS, -- 16#1D#
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S_RS, -- 16#1E#
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S_US, -- 16#1F#
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-- Here are the ones for Colonel Whitaker's O26 keypunch!
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S_Exclam, -- 16#21#
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S_Quotation, -- 16#22#
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S_Sharp, -- 16#23#
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S_Dollar, -- 16#24#
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S_Percent, -- 16#25#
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S_Ampersand, -- 16#26#
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S_Colon, -- 16#3A#
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S_Semicolon, -- 16#3B#
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S_Query, -- 16#3F#
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S_At_Sign, -- 16#40#
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S_L_Bracket, -- 16#5B#
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S_Back_Slash, -- 16#5C#
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S_R_Bracket, -- 16#5D#
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S_Circumflex, -- 16#5E#
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S_Underline, -- 16#5F#
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S_Grave, -- 16#60#
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S_LC_A, -- 16#61#
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S_LC_B, -- 16#62#
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S_LC_C, -- 16#63#
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S_LC_D, -- 16#64#
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S_LC_E, -- 16#65#
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S_LC_F, -- 16#66#
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S_LC_G, -- 16#67#
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S_LC_H, -- 16#68#
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S_LC_I, -- 16#69#
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S_LC_J, -- 16#6A#
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S_LC_K, -- 16#6B#
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S_LC_L, -- 16#6C#
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S_LC_M, -- 16#6D#
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S_LC_N, -- 16#6E#
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S_LC_O, -- 16#6F#
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S_LC_P, -- 16#70#
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S_LC_Q, -- 16#71#
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S_LC_R, -- 16#72#
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S_LC_S, -- 16#73#
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S_LC_T, -- 16#74#
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S_LC_U, -- 16#75#
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S_LC_V, -- 16#76#
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S_LC_W, -- 16#77#
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S_LC_X, -- 16#78#
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S_LC_Y, -- 16#79#
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S_LC_Z, -- 16#7A#
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S_L_BRACE, -- 16#7B#
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S_BAR, -- 16#7C#
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S_R_BRACE, -- 16#7D#
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S_TILDE, -- 16#7E#
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-- And one more control character, all on its own
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S_DEL); -- 16#7F#
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subtype S_Types is
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Standard_Entity_Type range S_Boolean .. S_Duration;
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subtype S_Exceptions is
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Standard_Entity_Type range S_Constraint_Error .. S_Tasking_Error;
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subtype S_ASCII_Names is
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Standard_Entity_Type range S_NUL .. S_DEL;
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subtype S_Binary_Ops is
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Standard_Entity_Type range S_Op_Add .. S_Op_Xor;
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subtype S_Unary_Ops is
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Standard_Entity_Type range S_Op_Abs .. S_Op_Plus;
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type Standard_Entity_Array_Type is array (Standard_Entity_Type) of Node_Id;
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Standard_Entity : Standard_Entity_Array_Type;
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-- This array contains pointers to the Defining Identifier nodes
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-- for each of the entities defined in Standard_Entities_Type. It
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-- is initialized by the Create_Standard procedure.
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Standard_Package_Node : Node_Id;
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-- Points to the N_Package_Declaration node for standard. Also
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-- initialized by the Create_Standard procedure.
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-- The following Entities are the pointers to the Defining Identifier
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-- nodes for some visible entities defined in Standard_Entities_Type.
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SE : Standard_Entity_Array_Type renames Standard_Entity;
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Standard_Standard : Entity_Id renames SE (S_Standard);
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Standard_ASCII : Entity_Id renames SE (S_ASCII);
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Standard_Character : Entity_Id renames SE (S_Character);
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Standard_Wide_Character : Entity_Id renames SE (S_Wide_Character);
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Standard_Wide_Wide_Character : Entity_Id renames SE (S_Wide_Wide_Character);
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Standard_String : Entity_Id renames SE (S_String);
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Standard_Wide_String : Entity_Id renames SE (S_Wide_String);
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Standard_Wide_Wide_String : Entity_Id renames SE (S_Wide_Wide_String);
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Standard_Boolean : Entity_Id renames SE (S_Boolean);
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Standard_False : Entity_Id renames SE (S_False);
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Standard_True : Entity_Id renames SE (S_True);
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Standard_Duration : Entity_Id renames SE (S_Duration);
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Standard_Natural : Entity_Id renames SE (S_Natural);
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Standard_Positive : Entity_Id renames SE (S_Positive);
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Standard_Constraint_Error : Entity_Id renames SE (S_Constraint_Error);
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Standard_Numeric_Error : Entity_Id renames SE (S_Numeric_Error);
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Standard_Program_Error : Entity_Id renames SE (S_Program_Error);
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Standard_Storage_Error : Entity_Id renames SE (S_Storage_Error);
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Standard_Tasking_Error : Entity_Id renames SE (S_Tasking_Error);
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Standard_Short_Float : Entity_Id renames SE (S_Short_Float);
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Standard_Float : Entity_Id renames SE (S_Float);
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Standard_Long_Float : Entity_Id renames SE (S_Long_Float);
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Standard_Long_Long_Float : Entity_Id renames SE (S_Long_Long_Float);
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Standard_Short_Short_Integer : Entity_Id renames SE (S_Short_Short_Integer);
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Standard_Short_Integer : Entity_Id renames SE (S_Short_Integer);
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Standard_Integer : Entity_Id renames SE (S_Integer);
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Standard_Long_Integer : Entity_Id renames SE (S_Long_Integer);
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Standard_Long_Long_Integer : Entity_Id renames SE (S_Long_Long_Integer);
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Standard_Op_Add : Entity_Id renames SE (S_Op_Add);
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Standard_Op_And : Entity_Id renames SE (S_Op_And);
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Standard_Op_Concat : Entity_Id renames SE (S_Op_Concat);
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Standard_Op_Concatw : Entity_Id renames SE (S_Op_Concatw);
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Standard_Op_Concatww : Entity_Id renames SE (S_Op_Concatww);
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Standard_Op_Divide : Entity_Id renames SE (S_Op_Divide);
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Standard_Op_Eq : Entity_Id renames SE (S_Op_Eq);
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Standard_Op_Expon : Entity_Id renames SE (S_Op_Expon);
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Standard_Op_Ge : Entity_Id renames SE (S_Op_Ge);
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Standard_Op_Gt : Entity_Id renames SE (S_Op_Gt);
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Standard_Op_Le : Entity_Id renames SE (S_Op_Le);
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Standard_Op_Lt : Entity_Id renames SE (S_Op_Lt);
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Standard_Op_Mod : Entity_Id renames SE (S_Op_Mod);
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Standard_Op_Multiply : Entity_Id renames SE (S_Op_Multiply);
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Standard_Op_Ne : Entity_Id renames SE (S_Op_Ne);
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Standard_Op_Or : Entity_Id renames SE (S_Op_Or);
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Standard_Op_Rem : Entity_Id renames SE (S_Op_Rem);
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Standard_Op_Subtract : Entity_Id renames SE (S_Op_Subtract);
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Standard_Op_Xor : Entity_Id renames SE (S_Op_Xor);
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Standard_Op_Abs : Entity_Id renames SE (S_Op_Abs);
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Standard_Op_Minus : Entity_Id renames SE (S_Op_Minus);
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Standard_Op_Not : Entity_Id renames SE (S_Op_Not);
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Standard_Op_Plus : Entity_Id renames SE (S_Op_Plus);
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Last_Standard_Node_Id : Node_Id;
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-- Highest Node_Id value used by Standard
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Last_Standard_List_Id : List_Id;
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-- Highest List_Id value used by Standard (including those used by
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-- normal list headers, element list headers, and list elements)
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Boolean_Literals : array (Boolean) of Entity_Id;
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-- Entities for the two boolean literals, used by the expander
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-------------------------------------
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-- Semantic Phase Special Entities --
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-------------------------------------
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-- The semantic phase needs a number of entities for internal processing
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-- that are logically at the level of Standard, and hence defined in this
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-- package. However, they are never visible to a program, and are not
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-- chained on to the Decls list of Standard. The names of all these
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-- types are relevant only in certain debugging and error message
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-- situations. They have names that are suitable for use in such
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-- error messages (see body for actual names used).
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Standard_Void_Type : Entity_Id;
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-- This is a type used to represent the return type of procedures
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Standard_Exception_Type : Entity_Id;
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-- This is a type used to represent the Etype of exceptions
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Standard_A_String : Entity_Id;
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-- An access to String type used for building elements of tables
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-- carrying the enumeration literal names.
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Standard_A_Char : Entity_Id;
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-- Access to character, used as a component of the exception type to
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-- denote a thin pointer component.
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Standard_Debug_Renaming_Type : Entity_Id;
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-- A zero-size subtype of Integer, used as the type of variables used
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-- to provide the debugger with name encodings for renaming declarations.
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-- The entities labeled Any_xxx are used in situations where the full
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-- characteristics of an entity are not yet known, e.g. Any_Character
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-- is used to label a character literal before resolution is complete.
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-- These entities are also used to construct appropriate references in
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-- error messages ("expecting an integer type").
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Any_Id : Entity_Id;
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-- Used to represent some unknown identifier. Used to label undefined
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-- identifier references to prevent cascaded errors.
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Any_Type : Entity_Id;
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-- Used to represent some unknown type. Plays an important role in
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-- avoiding cascaded errors, since any node that remains labeled with
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-- this type corresponds to an already issued error message. Any_Type
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-- is propagated to avoid cascaded errors from a single type error.
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Any_Access : Entity_Id;
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-- Used to resolve the overloaded literal NULL
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Any_Array : Entity_Id;
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-- Used to represent some unknown array type
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Any_Boolean : Entity_Id;
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-- The context type of conditions in IF and WHILE statements
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Any_Character : Entity_Id;
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-- Any_Character is used to label character literals, which in general
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-- will not have an explicit declaration (this is true of the predefined
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-- character types).
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Any_Composite : Entity_Id;
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-- The type Any_Composite is used for aggregates before type resolution.
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-- It is compatible with any array or non-limited record type.
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Any_Discrete : Entity_Id;
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-- Used to represent some unknown discrete type
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Any_Fixed : Entity_Id;
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-- Used to represent some unknown fixed-point type
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Any_Integer : Entity_Id;
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-- Used to represent some unknown integer type
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Any_Modular : Entity_Id;
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-- Used to represent the result type of a boolean operation on an
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-- integer literal. The result is not Universal_Integer, because it is
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-- only legal in a modular context.
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Any_Numeric : Entity_Id;
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-- Used to represent some unknown numeric type
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Any_Real : Entity_Id;
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-- Used to represent some unknown real type
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Any_Scalar : Entity_Id;
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-- Used to represent some unknown scalar type
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Any_String : Entity_Id;
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-- The type Any_String is used for string literals before type
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-- resolution. It corresponds to array (Positive range <>) of character
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-- where the component type is compatible with any character type,
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-- not just Standard_Character.
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Universal_Integer : Entity_Id;
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-- Entity for universal integer type. The bounds of this type correspond
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-- to the largest supported integer type (i.e. Long_Long_Integer). It is
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-- the type used for runtime calculations in type universal integer.
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Universal_Real : Entity_Id;
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-- Entity for universal real type. The bounds of this type correspond to
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-- to the largest supported real type (i.e. Long_Long_Float). It is the
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-- type used for runtime calculations in type universal real. Note that
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-- this type is always IEEE format, even if Long_Long_Float is Vax_Float
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-- (and in that case the bounds don't correspond exactly).
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Universal_Fixed : Entity_Id;
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-- Entity for universal fixed type. This is a type with arbitrary
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-- precision that can only appear in a context with a specific type.
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-- Universal_Fixed labels the result of multiplication or division of
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-- two fixed point numbers, and has no specified bounds (since, unlike
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-- universal integer and universal real, it is never used for runtime
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-- calculations).
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Standard_Integer_8 : Entity_Id;
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Standard_Integer_16 : Entity_Id;
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Standard_Integer_32 : Entity_Id;
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Standard_Integer_64 : Entity_Id;
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-- These are signed integer types with the indicated sizes, They are
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-- used for the underlying implementation types for fixed-point and
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-- enumeration types.
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Standard_Unsigned : Entity_Id;
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-- An unsigned type of the same size as Standard_Integer
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Abort_Signal : Entity_Id;
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-- Entity for abort signal exception
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Standard_Op_Rotate_Left : Entity_Id;
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Standard_Op_Rotate_Right : Entity_Id;
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Standard_Op_Shift_Left : Entity_Id;
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Standard_Op_Shift_Right : Entity_Id;
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Standard_Op_Shift_Right_Arithmetic : Entity_Id;
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-- These entities are used for shift operators generated by the expander
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-----------------
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-- Subprograms --
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-----------------
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procedure Tree_Read;
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-- Initializes entity values in this package from the current tree
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-- file using Osint.Tree_Read. Note that Tree_Read includes all the
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-- initialization that is carried out by Create_Standard.
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procedure Tree_Write;
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-- Writes out the entity values in this package to the current
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-- tree file using Osint.Tree_Write.
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end Stand;
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