File: opt47.adb

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (31 lines) | stat: -rw-r--r-- 932 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
-- { dg-do run { target i?86-*-* x86_64-*-* alpha*-*-* ia64-*-* } }
-- { dg-options "-O2" }

with Ada.Characters.Handling;   use Ada.Characters.Handling;
with Interfaces;                use Interfaces;
with Ada.Unchecked_Conversion;

procedure Opt47 is

   subtype String4 is String (1 .. 4);
   function To_String4 is new Ada.Unchecked_Conversion (Unsigned_32, String4);
   type Arr is array (Integer range <>) of Unsigned_32;
   Leaf : Arr (1 .. 4) := (1349478766, 1948272498, 1702436946, 1702061409);
   Value : Unsigned_32;
   Result : String (1 .. 32);
   Last : Integer := 0;

begin
   for I in 1 .. 4 loop
      Value := Leaf (I);
      for J in reverse String4'Range loop
         if Is_Graphic (To_String4 (Value)(J)) then
            Last := Last + 1;
            Result (Last) := To_String4 (Value)(J);
         end if;
      end loop;
   end loop;
   if Result (1) /= 'P' then
      raise Program_Error;
   end if;
end;