Branch: refs/heads/blead
Home: https://github.com/Perl/perl5
Commit: 7c85ab5c9947e71b5b26c273b662e83394157e43
https://github.com/Perl/perl5/commit/7c85ab5c9947e71b5b26c273b662e83394157e43
Author: TAKAI Kousuke <[email protected]>
Date: 2024-06-12 (Wed, 12 Jun 2024)
Changed paths:
M sv.c
M t/op/numconvert.t
Log Message:
-----------
sv.c: Make sv_2nv_flags() not to convert stringified IV_MIN to NV
For !NV_PRESERVES_UV case (e.g. IV and NV are both 64-bit, as in
typical x86_64 build), sv_2nv_flags() used to cache only NV for
stringified IV_MIN ("-9223372036854775808" in such case).
This leads such string to be treated as (possibly unintentionally
rounded) NV in subsequent references:
$ perl -wle 'my $x = my $y = "-9223372036854775808";
my $z = $x + 1.23; print $x + 0; print $y + 0'
-9.22337203685478e+18
-9223372036854775808
$
This change avoid this by not treating IV_MIN specially,
with new macros added in b9b8c7d2e8567b5c6652a643b4a44af22e06f2bc.
t/op/numconvert.t: Added tests for this.
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