File: opt81.adb

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (20 lines) | stat: -rw-r--r-- 539 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
-- { dg-do compile }
-- { dg-options "-O -gnatws" }

with Unchecked_Conversion;

package body Opt81 is

  procedure Copy (From, To : Rec) is
    Len : constant Natural := From.A.all'Length;
    subtype Fixed_String is String (1 .. Len);
    type Fixed_String_Access is access Fixed_String;
    function To_Fixed is new
      Unchecked_Conversion (Source => String_Access,
                            Target => Fixed_String_Access);
    S : Fixed_String_Access := To_Fixed (To.A);
  begin
    S (1 .. Len) := From.A.all;
  end;

end Opt81;