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src: fix warn_unused_result compiler warning #32241

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merged 1 commit into from
Mar 15, 2020
Merged

src: fix warn_unused_result compiler warning #32241

merged 1 commit into from
Mar 15, 2020

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cjihrig
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@cjihrig cjihrig commented Mar 13, 2020 

../src/node_file.cc:386:7: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result]

Refs: #31972

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. fs Issues and PRs related to the fs subsystem / file system. labels Mar 13, 2020
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I wonder if we could add tests for this kind of thing. Maybe we are running into a gyp limitation, -Werror doesn't work for us, because the deps spew warnings. Is it possible to cause just the src/ files, node's src, to fail on warning? Or... maybe that won't work because of v8 warnings.

addaleax
addaleax requested changes Mar 13, 2020
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@sam-github One problem with -Werror for the src/ tree might be that it could fail on some compiler versions and not others :/

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It could, but then we would see, and fix it, as opposed to people later noticing and there being a stream (ok, continuous trickle?) of PRs to fix the warnings. I don't think we've a situation where there is a warning that can't be fixed across gcc* and clang*. I have in the past worked on multi-platform code where it wasn't possible to make code that satisfied all our compilers simultaneously, but I think clang and gcc are under some kind of social or technical pressure to not diverge like that.

@addaleax addaleax added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Mar 13, 2020
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CI: https://ci.nodejs.org/job/node-test-pull-request/29813/

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nodejs-github-bot commented Mar 13, 2020 •
edited by cjihrig
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CI: https://ci.nodejs.org/job/node-test-pull-request/29824/ 💛

@cjihrig
src: fix warn_unused_result compiler warning
8617508 
../src/node_file.cc:386:7: warning: ignoring return value of
function declared with 'warn_unused_result'
attribute [-Wunused-result]

PR-URL: nodejs#32241
Refs: nodejs#31972
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@cjihrig cjihrig merged commit 8617508 into nodejs:master Mar 15, 2020
@cjihrig cjihrig deleted the warning branch March 15, 2020 13:51
@sthagen sthagen mentioned this pull request Mar 15, 2020
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BridgeAR pushed a commit that referenced this pull request Mar 17, 2020
@cjihrig @BridgeAR
src: fix warn_unused_result compiler warning
3c0ce69 
../src/node_file.cc:386:7: warning: ignoring return value of
function declared with 'warn_unused_result'
attribute [-Wunused-result]

PR-URL: #32241
Refs: #31972
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@MylesBorins MylesBorins mentioned this pull request Mar 19, 2020
Merged
MylesBorins pushed a commit that referenced this pull request Mar 24, 2020
@cjihrig @MylesBorins
src: fix warn_unused_result compiler warning
7fc5e6d 
../src/node_file.cc:386:7: warning: ignoring return value of
function declared with 'warn_unused_result'
attribute [-Wunused-result]

PR-URL: #32241
Refs: #31972
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
targos pushed a commit that referenced this pull request Apr 22, 2020
@cjihrig @targos
src: fix warn_unused_result compiler warning
9b6f678 
../src/node_file.cc:386:7: warning: ignoring return value of
function declared with 'warn_unused_result'
attribute [-Wunused-result]

PR-URL: #32241
Refs: #31972
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: David Carlier <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@targos targos mentioned this pull request Apr 22, 2020
Merged
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@sam-github sam-github sam-github approved these changes

@jasnell jasnell jasnell approved these changes

@addaleax addaleax addaleax approved these changes

@devnexen devnexen devnexen approved these changes

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