diff options
Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-fore.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-fore.adb | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-fore.adb b/gcc-4.2.1/gcc/ada/s-fore.adb new file mode 100644 index 000000000..1e51c78a6 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-fore.adb @@ -0,0 +1,58 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . F O R E -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005 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 2, 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. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package body System.Fore is + + ---------- + -- Fore -- + ---------- + + function Fore (Lo, Hi : Long_Long_Float) return Natural is + T : Long_Long_Float := Long_Long_Float'Max (abs Lo, abs Hi); + R : Natural; + + begin + -- Initial value of 2 allows for sign and mandatory single digit + + R := 2; + + -- Loop to increase Fore as needed to include full range of values + + while T >= 10.0 loop + T := T / 10.0; + R := R + 1; + end loop; + + return R; + end Fore; +end System.Fore; |