From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/s-valdec.ads | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 gcc/ada/s-valdec.ads (limited to 'gcc/ada/s-valdec.ads') diff --git a/gcc/ada/s-valdec.ads b/gcc/ada/s-valdec.ads new file mode 100644 index 000000000..cb7a73110 --- /dev/null +++ b/gcc/ada/s-valdec.ads @@ -0,0 +1,79 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . V A L _ D E C -- +-- -- +-- S p e c -- +-- -- +-- 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 -- +-- . -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains routines for scanning decimal values where the size +-- of the type is no greater than Standard.Integer'Size, for use in Text_IO. +-- Decimal_IO, and the Value attribute for such decimal types. + +package System.Val_Dec is + pragma Pure; + + function Scan_Decimal + (Str : String; + Ptr : not null access Integer; + Max : Integer; + Scale : Integer) return Integer; + -- This function scans the string starting at Str (Ptr.all) for a valid + -- real literal according to the syntax described in (RM 3.5(43)). The + -- substring scanned extends no further than Str (Max). There are three + -- cases for the return: + -- + -- If a valid real literal is found after scanning past any initial spaces, + -- then Ptr.all is updated past the last character of the literal (but + -- trailing spaces are not scanned out). The value returned is the value + -- Integer'Integer_Value (decimal-literal-value), using the given Scale + -- to determine this value. + -- + -- If no valid real literal is found, then Ptr.all points either to an + -- initial non-digit character, or to Max + 1 if the field is all spaces + -- and the exception Constraint_Error is raised. + -- + -- If a syntactically valid integer is scanned, but the value is out of + -- range, or, in the based case, the base value is out of range or there + -- is an out of range digit, then Ptr.all points past the integer, and + -- Constraint_Error is raised. + -- + -- Note: these rules correspond to the requirements for leaving the + -- pointer positioned in Text_Io.Get + -- + -- Note: if Str is null, i.e. if Max is less than Ptr, then this is a + -- special case of an all-blank string, and Ptr is unchanged, and hence + -- is greater than Max as required in this case. + + function Value_Decimal (Str : String; Scale : Integer) return Integer; + -- Used in computing X'Value (Str) where X is a decimal types whose size + -- does not exceed Standard.Integer'Size. Str is the string argument of + -- the attribute. Constraint_Error is raised if the string is malformed + -- or if the value is out of range, otherwise the value returned is the + -- value Integer'Integer_Value (decimal-literal-value), using the given + -- Scale to determine this value. + +end System.Val_Dec; -- cgit v1.2.3