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src: fix use of uninitialized variable #9281

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src: fix use of uninitialized variable #9281

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jasnell
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@jasnell jasnell commented Oct 25, 2016

Checklist
  • make -j8 test (UNIX), or vcbuild test nosign (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)

src

Description of change

Alternative to #9280 ...
The proposed fix in 9280 breaks the calculation algorithm.

Variable was uninitialized in 72547fe Initialize the variable and add a static_check

/cc @bnoordhuis @addaleax

@nodejs-github-bot nodejs-github-bot added the c++ Issues and PRs that require attention from people who are familiar with C++. label Oct 25, 2016
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jasnell commented Oct 25, 2016

CI: https://ci.nodejs.org/job/node-test-pull-request/4675/

@jasnell jasnell mentioned this pull request Oct 25, 2016
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jasnell commented Oct 28, 2016

ping @addaleax @bnoordhuis

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bnoordhuis approved these changes Oct 28, 2016
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LGTM with nit. Does valgrind -q complain without this patch? If no, consider adding a regression test.

src/node_i18n.cc
@@ -521,7 +521,9 @@ static void GetStringWidth(const FunctionCallbackInfo<Value>& args) {
TwoByteValue value(env->isolate(), args[0]);
// reinterpret_cast is required by windows to compile
UChar* str = reinterpret_cast<UChar*>(*value);
UChar32 c;
static_assert(sizeof(*str) == sizeof(**value),
"(sizeof(*str) == sizeof(**value)");
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You have an extraneous paren in the string.

@jasnell
src: fix use of uninitialized variable
e0bad1e 
Variable was uninitialized in 72547fe
Initialize the variable and add a static_check
jasnell added a commit that referenced this pull request Oct 28, 2016
@jasnell
src: fix use of uninitialized variable
2bd850b 
Variable was uninitialized in 72547fe
Initialize the variable and add a static_check

PR-URL: #9281
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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jasnell commented Oct 28, 2016

Landed in 2bd850b

@jasnell jasnell closed this Oct 28, 2016
evanlucas pushed a commit that referenced this pull request Nov 3, 2016
@jasnell @evanlucas
src: fix use of uninitialized variable
5ab172e 
Variable was uninitialized in 72547fe
Initialize the variable and add a static_check

PR-URL: #9281
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
@evanlucas evanlucas mentioned this pull request Nov 3, 2016
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This does not land cleanly in LTS. Added dont-land label. Please feel free to manually backport

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