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src: fix compiler warnings in node_buffer.cc #38722

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@RaisinTenRaisinTen commented May 18, 2021•
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The variables could be initialized to 0 to avoid the warnings from
-Wmaybe-uninitialized.

Fixes: #38718

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targos commented May 18, 2021

Any idea why the warnings are only emitted on v14.x branches?

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targos commented May 19, 2021

/cc @addaleax ?

@github-actionsgithub-actionsbot added buffer Issues and PRs related to the buffer subsystem. c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. labels May 19, 2021
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@targos no idea; and I think that warnings would be okay to ignore here as well, as they seem like false positives to me.

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@RaisinTenRaisinTen added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label May 19, 2021
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This PR has cleared up most of the compiler warnings I get when building locally with GCC 10 (#38718 (comment)) but one still remains:

../src/node_buffer.cc: In function ‘void node::Buffer::{anonymous}::Fill(const v8::FunctionCallbackInfo<v8::Value>&)’: ../src/node_buffer.cc:646:35: error: ‘start’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 646 | char* ptr = ts_obj_data + start + str_length; | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ cc1plus: all warnings being treated as errors

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src: fix compiler warnings in node_buffer.cc
2ab4e90
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: nodejs#38718
@RaisinTenRaisinTenforce-pushed the src/fix-compiler-warnings-in-node_buffer.cc branch from 15303b2 to 2ab4e90CompareMay 19, 2021 15:24
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RaisinTen commented May 19, 2021

@richardlau Updated the PR to initialize start as well. PTAL.

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nodejs-github-bot commented May 22, 2021•
edited by jasnell
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CI: https://ci.nodejs.org/job/node-test-pull-request/38281/ 💚

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jasnell commented May 24, 2021

Landed in 7766b38

jasnell pushed a commit that referenced this pull request May 24, 2021
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src: fix compiler warnings in node_buffer.cc
7766b38
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: #38718 PR-URL: #38722 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
@jasnelljasnell closed this May 24, 2021
@RaisinTenRaisinTen deleted the src/fix-compiler-warnings-in-node_buffer.cc branch May 24, 2021 14:38
targos pushed a commit that referenced this pull request May 25, 2021
@RaisinTen@targos
src: fix compiler warnings in node_buffer.cc
267ddff
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: #38718 PR-URL: #38722 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
danielleadams pushed a commit that referenced this pull request May 31, 2021
@RaisinTen@danielleadams
src: fix compiler warnings in node_buffer.cc
9ca5c0e
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: #38718 PR-URL: #38722 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
@danielleadamsdanielleadams mentioned this pull request May 31, 2021
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targos pushed a commit that referenced this pull request Jun 5, 2021
@RaisinTen@targos
src: fix compiler warnings in node_buffer.cc
4e99edb
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: #38718 PR-URL: #38722 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
@targostargos mentioned this pull request Jun 6, 2021
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targos pushed a commit that referenced this pull request Jun 11, 2021
@RaisinTen@targos
src: fix compiler warnings in node_buffer.cc
8a60ae2
The variables could be initialized to `0` to avoid the warnings from `-Wmaybe-uninitialized`. Fixes: #38718 PR-URL: #38722 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
@richardlaurichardlau mentioned this pull request Sep 1, 2021
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Compiler warnings make test-linux workflow fail on v14.x

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