File: pointer_conversion.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 (25 lines) | stat: -rw-r--r-- 429 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
 
-- { dg-do run }
-- { dg-options "-O2" }

with Unchecked_Conversion;

procedure pointer_conversion is

   type int1 is new integer;
   type int2 is new integer;
   type a1 is access int1;
   type a2 is access int2;

   function to_a2 is new Unchecked_Conversion (a1, a2);

   v1 : a1 := new int1;
   v2 : a2 := to_a2 (v1);

begin
   v1.all := 1;
   v2.all := 0;

   if v1.all /= 0 then
      raise Program_Error;
   end if;
end;