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-valrea.ads | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 gcc/ada/s-valrea.ads (limited to 'gcc/ada/s-valrea.ads') diff --git a/gcc/ada/s-valrea.ads b/gcc/ada/s-valrea.ads new file mode 100644 index 000000000..637e70ae2 --- /dev/null +++ b/gcc/ada/s-valrea.ads @@ -0,0 +1,70 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . V A L _ R E A L -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +package System.Val_Real is + pragma Pure; + + function Scan_Real + (Str : String; + Ptr : not null access Integer; + Max : Integer) return Long_Long_Float; + -- 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 is found after scanning past any initial spaces, then + -- Ptr.all is updated past the last character of the real (but trailing + -- spaces are not scanned out). + -- + -- If no valid real is found, then Ptr.all points either to an initial + -- non-blank character, or to Max + 1 if the field is all spaces and the + -- exception Constraint_Error is raised. + -- + -- If a syntactically valid real 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 real literal, + -- 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_Real (Str : String) return Long_Long_Float; + -- Used in computing X'Value (Str) where X is a floating-point type or an + -- ordinary fixed-point type. Str is the string argument of the attribute. + -- Constraint_Error is raised if the string is malformed, or if the value + -- out of range of Long_Long_Float. + +end System.Val_Real; -- cgit v1.2.3