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I think I can fix everything in the cm3 tree if size is changed to LONGINT.<br>Including Index(), Length(), Seek().<br>It involves *many* uses of VAL and ORD, and indeed, it would help if:<br><br><br>INC(longint, integer) was legal, which seems perfectly ok.<br>longint := integer ditto<br><br><br>Most of the toplevel users will end up throwing in ORD, as they<br>require files to fit in memory/addressspace.<br><br><br>There is still the matter of this will break too much code out there.<br><br><br> - Jay<br><br><hr id="stopSpelling">From: jay.krell@cornell.edu<br>To: m3devel@elegosoft.com<br>Date: Thu, 7 Jan 2010 06:59:31 +0000<br>Subject: [M3devel] what to do about file sizes being 32bits?<br><br>
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File.i3:<br><br><br> Status = RECORD<br> type: Type;<br> modificationTime: Time.T;<br> size: CARDINAL (* oops... *)<br> END;<br><br><br>What to do?<br>[0.. higher than 7FFFFFFF] doesn't "just work".<br> higher than 7FFFFFFFF is not legal on 32bit, unless you put "L" on the end,<br> which presumably has some relationship to turning it into a LONGINT, which<br> causes users to fail to compile<br><br><br>LONGINT doesn't "just work"<br> causes users to fail to compile<br>
<br><br>stale imports -> compiling ProcessPosixCommon.i3<br>stale imports -> compiling ProcessPosixCommon.m3<br>stale imports -> compiling ProcessPosix.m3<br>stale imports -> compiling FileRd.i3<br>missing version stamps -> compiling FileRd.m3<br>"../src/rw/FileRd.m3", line 73: incompatible argument types: MIN<br>"../src/rw/FileRd.m3", line 140: types are not assignable<br>2 errors encountered<br>stale imports -> compiling FileWr.i3<br>missing version stamps -> compiling FileWr.m3<br>"../src/rw/FileWr.m3", line 92: incompatible argument types: MIN<br>"../src/rw/FileWr.m3", line 108: incompatible argument types: MAX<br>2 errors encountered<br>st<br><br><br>Change it to LONGINT, fix all the callers, and hope the damage isn't too great outside the cm3 tree?<br><br><br>Change it to LONGINT only for 32bit platforms, somehow author the cm3 tree to work either way,<br>hope the damage isn't too great outside the cm3 tree?<br><br><br>Change it to LONGREAL so that it works immediately on NT386.<br> Same issues as above, breaks existing users.<br><br><br>Maybe relax the language some, so that e.g.<br>a:INTEGER;<br>b:LONGINT;<br><br>b := a;<br><br>just works, see if it helps make more code compile with the change?<br><br>a := b is problematic of course, but what is wrong with b := a?<br><br> - Jay<br><br> </body>
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