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int32 goes crazy on -2147483648 (my int32 $x = -2147483648; say $x * 1.0) #6479

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p6rt opened this issue Aug 30, 2017 · 1 comment
Open

int32 goes crazy on -2147483648 (my int32 $x = -2147483648; say $x * 1.0) #6479

p6rt opened this issue Aug 30, 2017 · 1 comment
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regression Issue did not exist previously severe A problem that is encountered frequently, or a problem that needs attention for other reasons

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p6rt commented Aug 30, 2017

Migrated from rt.perl.org#131994 (status was 'new')

Searchable as RT131994$
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p6rt commented Aug 30, 2017

From @AlexDaniel

This one is really old.

Code​:
my int32 $x = -2147483648;
my Int $z = $x;
say $z;
say $z * 1.0

Result (2014.01 … 2015.07.2)​:
-2147483648
-2147483648

Result (b3b4926cc0, 2015.09 … 2017.08, HEAD(e3af662))​:
-2147483648
-18446744071562067968

All other values don't seem to cause problems. int64 seems to be OK too.

Bisected to rakudo/rakudo@b3b4926

@p6rt p6rt added regression Issue did not exist previously severe A problem that is encountered frequently, or a problem that needs attention for other reasons labels Jan 5, 2020
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