aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.3.1/gcc/ada/s-widlli.adb
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.3.1/gcc/ada/s-widlli.adb')
-rw-r--r--gcc-4.3.1/gcc/ada/s-widlli.adb75
1 files changed, 75 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/s-widlli.adb b/gcc-4.3.1/gcc/ada/s-widlli.adb
new file mode 100644
index 000000000..3251f2d51
--- /dev/null
+++ b/gcc-4.3.1/gcc/ada/s-widlli.adb
@@ -0,0 +1,75 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M . W I D _ L L I --
+-- --
+-- 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.Wid_LLI is
+
+ -----------------------------
+ -- Width_Long_Long_Integer --
+ -----------------------------
+
+ function Width_Long_Long_Integer
+ (Lo, Hi : Long_Long_Integer)
+ return Natural
+ is
+ W : Natural;
+ T : Long_Long_Integer;
+
+ begin
+ if Lo > Hi then
+ return 0;
+
+ else
+ -- Minimum value is 2, one for sign, one for digit
+
+ W := 2;
+
+ -- Get max of absolute values, but avoid bomb if we have the maximum
+ -- negative number (note that First + 1 has same digits as First)
+
+ T := Long_Long_Integer'Max (
+ abs (Long_Long_Integer'Max (Lo, Long_Long_Integer'First + 1)),
+ abs (Long_Long_Integer'Max (Hi, Long_Long_Integer'First + 1)));
+
+ -- Increase value if more digits required
+
+ while T >= 10 loop
+ T := T / 10;
+ W := W + 1;
+ end loop;
+
+ return W;
+ end if;
+
+ end Width_Long_Long_Integer;
+
+end System.Wid_LLI;