Closed Bug 595756 Opened 14 years ago Closed 14 years ago

Fix build warning - 'argument' : conversion from 'PRUint16' to 'PRUint8', possible loss of data

Categories

(Core :: SVG, defect)

x86
Windows 2000
defect
Not set
minor

Tracking

()

RESOLVED FIXED
mozilla2.0b7
Tracking Status
blocking2.0 --- -

People

(Reporter: sgautherie, Assigned: sgautherie)

References

Details

Attachments

(1 file)

(I hadn't tried to build locally for a long time...) After applying bug 595708 comment 3 workaround, I get { .../DOMSVGLength.cpp(58) : error C2248: 'mozilla::DOMSVGLengthList::mItems' : cannot access private member declared in class 'mozilla::DOMSVGLengthList' ...\DOMSVGLengthList.h(150) : see declaration of 'mozilla::DOMSVGLengthList::mItems' ...\DOMSVGLengthList.h(70) : see declaration of 'mozilla::DOMSVGLengthList' .../DOMSVGLength.cpp(276) : warning C4244: 'argument' : conversion from 'PRUint16' to 'PRUint8', possible loss of data } http://mxr.mozilla.org/mozilla-central/source/content/svg/content/src/DOMSVGLength.cpp 56 // We may not belong to a list, so we must null check tmp->mList. 57 if (tmp->mList) { 58 tmp->mList->mItems[tmp->mListIndex] = nsnull;
status2.0: --- → ?
Iiuc, it looks like VC++ 2005 has difficulty w.r.t. { class DOMSVGLengthList : public nsIDOMSVGLengthList { friend class DOMSVGLength; }
Keywords: helpwanted
This is like 285 mUnit = PRUint8(aUnit); I have no idea whether the API is right, but at least this patch is consistent with current code.
Attachment #477529 - Flags: review?(longsonr)
Attachment #477529 - Flags: review?(longsonr) → review+
Comment on attachment 477529 [details] [diff] [review] (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 26] "approval2.0=?": Trivial compile warning fix, zero risk.
Attachment #477529 - Flags: approval2.0?
Assignee: nobody → sgautherie.bz
Attachment #477529 - Attachment description: (Av1) Add an unrelated PRUint8() cast → (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 4]
Attachment #477529 - Flags: approval2.0?
Assignee: sgautherie.bz → nobody
Looks like this never got approval, which current tree rules say it's supposed to have before landing. (having said that, it's trivial & probably merits approval, & you might be able to get retroactive approval by pinging a release driver)
(In reply to comment #5) > Looks like this never got approval, which current tree rules say it's supposed > to have before landing. Not my fault: the tree was green-'OPEN' when I checked in, (just as it is "still" green-'APPROVAL REQUIRED' instead of usual yellow). Moreover, as you can see, I didn't (have to) use 'a=*'. > (having said that, it's trivial & probably merits approval, & you might be able > to get retroactive approval by pinging a release driver) Feel free to just set the flag(s) again: I have tried to ping for approval both on bugzilla and on irc before, without success...
I backed out all the changesets in your push because they weren't approved.
(In reply to comment #5) > Looks like this never got approval, which current tree rules say it's supposed > to have before landing. Oh! I just checked https://wiki.mozilla.org/Tree_Rules#mozilla-central_-_Trunk_.28Firefox_4.0.2C_Gecko_2.0_work.29 which indeed reads "When the tree is marked OPEN, you are free to land approved patches after checking with the current sheriff." Yet, this is quite unexpected/confusing: 'OPEN' (on the waterfall) usually means "no restriction"; "approval needed" usually means there is a checking hook and the waterfall reads 'APPROVAL REQUIRED' :-/
Comment on attachment 477529 [details] [diff] [review] (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 26] (In reply to comment #7) > I backed out all the changesets in your push because they weren't approved. See discussion in previous comments :-<
Attachment #477529 - Flags: approval2.0?
(In reply to comment #8) > Yet, this is quite unexpected/confusing: > 'OPEN' (on the waterfall) usually means "no restriction"; > "approval needed" usually means there is a checking hook and the waterfall > reads 'APPROVAL REQUIRED' :-/ (Yup -- it was a mistake that the waterfall said "open", and it's now been updated)
"blocking2.0=?": Can't build on tier-1 platform.
blocking2.0: --- → ?
I use VC 2005 Express and everything builds fine for me. The patch is just a cosmetic change and should not affect whether things compile or not.
(In reply to comment #12) > I use VC 2005 Express and everything builds fine for me. Ah. Could it be related to PSDK v2003R2 then? > The patch is just a > cosmetic change and should not affect whether things compile or not. It doesn't and is labelled "unrelated".
I have Microsoft Platform SDK for Windows Server 2003 R2 installed.
(In reply to comment #12) > I use VC 2005 Express Ah, do you have SP1? (I don't.) NB: I'm now wondering whether non-SP1 may be starting to have difficulties with our more recent code. I'll try to upgrade... (In reply to comment #14) > I have Microsoft Platform SDK for Windows Server 2003 R2 installed. Are you building with it only? (as I do on my Win2K)
Depends on: 595708
Microsoft Visual Studio 2005 Version 8.0.50727.867 (vsvista.050727-8600) Microsoft .NET Framework Version 2.0.50727 SP2 Installed Edition: VC Express Microsoft Visual C++ 2005 76542-000-0000011-00125 Microsoft Visual C++ 2005
Depends on: 605569
(In reply to comment #16) > Microsoft Visual Studio 2005 > Version 8.0.50727.867 (vsvista.050727-8600) I'm not familiar with this: would it be the one included in Vista SDK? I was referring to standalone Express, which 'cl' outputs: *noSP: Version 14.00.50727.42 *SP1 : Version 14.00.50727.762 Yours (....867) seems newer!?
Mine is 14.00.50727.762
Assignee: nobody → sgautherie.bz
Comment on attachment 477529 [details] [diff] [review] (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 26] This bug blocks final. This does not need explicit approval.
Attachment #477529 - Flags: approval2.0?
Comment on attachment 477529 [details] [diff] [review] (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 26] (In reply to comment #7) > I backed out all the changesets in your push http://hg.mozilla.org/mozilla-central/rev/57b6fe67200c
Attachment #477529 - Attachment description: (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 4] → (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 21]
(In reply to comment #22) > Backed out -- not a b7/a2 blocker. Damn! How can that be when default branch is 2.0b8pre?
(In reply to comment #24) > http://groups.google.mn/group/mozilla.dev.planning/browse_thread/thread/3538e7b1f4fea779# "we decided to ship Firefox 4 Beta 7 from mozilla-central instead of the relbranch that we created on October 6th": talk about confusion :-|
Keywords: checkin-needed
Whiteboard: [c-n: after 2.0b7 freeze]
Attachment #477529 - Attachment description: (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 21] → (Av1) Add an unrelated PRUint8() cast [Checked in: Comment 26]
Keywords: checkin-needed
Whiteboard: [c-n: after 2.0b7 freeze]
Assignee: sgautherie.bz → nobody
Depends on: 610936
(In reply to comment #15) > NB: I'm now wondering whether non-SP1 may be starting to have difficulties with > our more recent code. I'll try to upgrade... That was it: I filed bug 610936.
This has a patch so I'll just mark it fixed rather than invalid as we're not going to take any other patch that hacks up perfectly good code.
Status: NEW → RESOLVED
Closed: 14 years ago
Resolution: --- → FIXED
Summary: "DOMSVGLength.cpp(58) : error C2248: 'mozilla::DOMSVGLengthList::mItems' : cannot access private member declared in class 'mozilla::DOMSVGLengthList'" → Fix build warning - 'argument' : conversion from 'PRUint16' to 'PRUint8', possible loss of data
Severity: blocker → trivial
Keywords: helpwanted
No longer depends on: 605569
Assignee: nobody → sgautherie.bz
Severity: trivial → minor
status2.0: ? → ---
No longer depends on: 595708
Flags: in-testsuite-
Target Milestone: --- → mozilla2.0b7
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