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From: | Dan Sebald |
Subject: | [Octave-bug-tracker] [bug #54572] int64 does not saturate correctly in negative direction |
Date: | Sun, 26 Aug 2018 02:27:10 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
URL: <http://savannah.gnu.org/bugs/?54572> Summary: int64 does not saturate correctly in negative direction Project: GNU Octave Submitted by: sebald Submitted on: Sun 26 Aug 2018 06:27:09 AM UTC Category: Libraries Severity: 3 - Normal Priority: 5 - Normal Item Group: Incorrect Result Status: None Assigned to: None Originator Name: Originator Email: Open/Closed: Open Discussion Lock: Any Release: dev Operating System: GNU/Linux _______________________________________________________ Details: This seems odd: octave:169> intmin('int64') - 0 ans = -9223372036854775808 octave:170> intmin('int64') - 1 ans = 9223372036854775807 octave:171> intmin('int64') - 2 ans = 9223372036854775807 octave:172> intmin('int64') - 3 ans = 9223372036854775807 However, int32 behaves as expected: octave:177> intmin('int32') - 0 ans = -2147483648 octave:178> intmin('int32') - 1 ans = -2147483648 octave:179> intmin('int32') - 2 ans = -2147483648 octave:180> intmin('int32') - 3 _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?54572> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
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