[Perl/perl5] 27618a: S_postincdec_common - check for GET magic before t...

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 27618acc0865f4cb19e7f85ef4d1e8bca6e63755
      https://github.com/Perl/perl5/commit/27618acc0865f4cb19e7f85ef4d1e8bca6e63755
  Author: Richard Leach <[email protected]>
  Date:   2026-08-18 (Tue, 18 Aug 2026)

  Changed paths:
    M pp.c

  Log Message:
  -----------
  S_postincdec_common - check for GET magic before testing SvROK(sv)


  Commit: 1cda553c086d7a295eda91e69579126a8287f25c
      https://github.com/Perl/perl5/commit/1cda553c086d7a295eda91e69579126a8287f25c
  Author: Richard Leach <[email protected]>
  Date:   2026-08-18 (Tue, 18 Aug 2026)

  Changed paths:
    M lib/integer.t
    M opcode.h
    M pp.c
    M pp_hot.c
    M pp_proto.h
    M regen/opcode.pl
    M t/op/inc.t
    M t/op/int.t

  Log Message:
  -----------
  use integer: Add missing postinc/preinc/postdec/predec OPs

This commit addresses a long standing ticket (RT #6021 / GH #3564).

When the `use integer` pragma is in effect, pre/post increment/decrement
operations will now follow the same sort of logic as the other integer
operators, and not convert IVs to NVs or UVs when `IV_MAX`/`IV_MIN`
thresholds are passed.

An example (64 bit, IV size 8) adapted from that ticket:
```
use integer;
my $foo = 0xffffffffffffffff;
print "$foo\n";

$foo -= 1;
print "$foo\n";

$foo = 0xffffffffffffffff;

$foo--;
print "$foo\n";
```

The subtraction and decrement operators used to produce different results:
```
18446744073709551615
-2
18446744073709551614
```

Now they produce identical results:
```
18446744073709551615
-2
-2
```


  Commit: b1da2b65ff54ec2845281379eda52a2a6d5fa247
      https://github.com/Perl/perl5/commit/b1da2b65ff54ec2845281379eda52a2a6d5fa247
  Author: Richard Leach <[email protected]>
  Date:   2026-08-18 (Tue, 18 Aug 2026)

  Changed paths:
    M t/op/inc.t

  Log Message:
  -----------
  t/op/inc.t - add tests for 0+ overload


  Commit: 2923ffa76331e9f6c2297c6563f7646e8b3acb52
      https://github.com/Perl/perl5/commit/2923ffa76331e9f6c2297c6563f7646e8b3acb52
  Author: Richard Leach <[email protected]>
  Date:   2026-08-18 (Tue, 18 Aug 2026)

  Changed paths:
    M sv.c
    M t/lib/overload_fallback.t
    M t/op/inc.t

  Log Message:
  -----------
  inc/dec operators handle 0+ overloading correctly


Compare: https://github.com/Perl/perl5/compare/e25d382dc080...2923ffa76331

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