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From: | Lars Kindermann |
Subject: | [Octave-bug-tracker] [bug #53027] Strange behavior of globals with load |
Date: | Wed, 31 Jan 2018 03:19:03 -0500 (EST) |
User-agent: | Mozilla/5.0 (Windows NT 10.0; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0 |
URL: <http://savannah.gnu.org/bugs/?53027> Summary: Strange behavior of globals with load Project: GNU Octave Submitted by: larskindermann Submitted on: Wed 31 Jan 2018 08:19:02 AM UTC Category: Interpreter 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: load() of a global inside a function leads to several strange effects: - The value outside the function does not change - It cannot be cleared anymore Test code (bugGlobal.m): global X function saveX global X disp "inside saveX" X=1 save -binary fileX X endfunction function loadX global X disp "inside loadX:" X=2 load fileX disp "inside loadX after load:" X endfunction disp "starting:" X=0 saveX disp "after saveX:" X loadX disp "after loadX:" X load fileX disp "after load:" X clear all disp "after clear:" X This is the correct output of version 4.0 starting: X = 0 inside saveX X = 1 after saveX: X = 1 inside loadX: X = 2 inside loadX after load: X = 1 after loadX: X = 1 after load: X = 1 after clear: error: 'X' undefined near line 32 column 2 error: called from bugGlobal at line 32 column 2 This is the strange output of current dev starting: X = 0 inside saveX X = 1 after saveX: X = 1 inside loadX: X = 2 inside loadX after load: X = 1 after loadX: X = 2 after load: X = 1 after clear: X = 1 This is the even stranger output of a second execution of the code starting: X = 0 inside saveX X = 1 after saveX: X = 0 inside loadX: X = 2 inside loadX after load: X = 1 after loadX: X = 0 after load: X = 1 after clear: X = 1 _______________________________________________________ File Attachments: ------------------------------------------------------- Date: Wed 31 Jan 2018 08:19:02 AM UTC Name: bugGlobal.m Size: 349B By: larskindermann <http://savannah.gnu.org/bugs/download.php?file_id=43137> _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?53027> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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