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dtrace: resolve conversion warning (Windows) #10143

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@brodycj brodycj commented Dec 6, 2016

Checklist
  • make -j8 test (UNIX [macOS]; Linux i386 & amd64) and vcbuild test nosign (.\vcbuild.bat nosign then .\vcbuild.bat test nosign nobuild as Administrator on Windows) PASS OK
  • commit message follows commit guidelines
Additional item
Affected core subsystem(s)

dtrace

Description of change

static_cast<int32_t> in SLURP_INT macro - resolve conversion warning on Windows

NOTE: This was originally a part of PR #10139 (build, warning, header, and include fixes).

ADDITIONAL NOTE: This and some warnings related to PR #10139 may indicate potential data loss scenarios. For future examination.

@nodejs-github-bot nodejs-github-bot added the c++ Issues and PRs that require attention from people who are familiar with C++. label Dec 6, 2016
->ToInteger(env->isolate())->Value();
*valp = \
static_cast<int32_t>(obj->Get(OneByteString(env->isolate(), #member)) \
->ToInteger(env->isolate())->Value());
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obj->Get(...)->Int32Value()?

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+5

@brodycj brodycj force-pushed the cb-dtrace-warning-fix branch 2 times, most recently from 75636a5 to 9087785 Compare December 7, 2016 13:41
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brodycj commented Dec 7, 2016

@bnoordhuis I did redo the fix according to your suggestion, thanks for the feedback!

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LGTM but can you spruce up the commit log a little? I.e., more than just "(Windows)"?

CI: https://ci.nodejs.org/job/node-test-pull-request/5291/

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brodycj commented Dec 7, 2016

Yes the log could have been better. I wanted to put the "(Windows)" part on the subject line but then I couldn't fit a nice, complete commit subject into the standard 50 character length.

My idea is to replace "(Windows)" with "(Windows build)". Short, sweet, and to the point. @bnoordhuis please reply if this is still not quite good enough. Otherwise I will do this tomorrow morning.

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Take a look at other commits for inspiration. It should consist of a short status line and a few more lines describing the what and why. I usually include the compiler message verbatim when it's a fix for a compiler warning.

@brodycj brodycj force-pushed the cb-dtrace-warning-fix branch 2 times, most recently from a6de333 to d463558 Compare December 8, 2016 07:47
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brodycj commented Dec 8, 2016

I just amended the commit with the following message:

dtrace: resolve conversion warnings from SLURP_INT

Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data
@brodycj brodycj force-pushed the cb-dtrace-warning-fix branch from d463558 to 5a8126c Compare December 8, 2016 08:14
jasnell pushed a commit that referenced this pull request Dec 27, 2016
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
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jasnell commented Dec 27, 2016

Landed in 099762d

@jasnell jasnell closed this Dec 27, 2016
evanlucas pushed a commit that referenced this pull request Jan 3, 2017
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
evanlucas pushed a commit that referenced this pull request Jan 4, 2017
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Should this be backported?

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ping

@gibfahn gibfahn mentioned this pull request Jun 15, 2017
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gibfahn commented Jun 17, 2017

Should this be backported?

ping @bnoordhuis I guess

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Could be back-ported.

gibfahn pushed a commit that referenced this pull request Jun 20, 2017
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
gibfahn pushed a commit that referenced this pull request Jun 20, 2017
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
MylesBorins pushed a commit that referenced this pull request Jul 11, 2017
Resolve build warnings on Windows with the following pattern:
warning C4244: '=': conversion from 'int64_t' to 'int32_t',
possible loss of data

PR-URL: #10143
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Jul 18, 2017
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6 participants