aaron.ballman added inline comments.
================
Comment at: clang-tidy/bugprone/BugproneTidyModule.cpp:84
+ CheckFactories.registerCheck<IoFunctionsMisusedCheck>(
+ "bugprone-io-functions-misused");
CheckFactories.registerCheck<LambdaFunctionNameCheck>(
----------------
This name reads a bit awkwardly because usually "misused" would come before "io
functions". However, given that we've already said it's prone to bugs, I think
"misuse" is somewhat implied. Perhaps `bugprone-io-functions` or
`bugprone-misused-io-functions'?
However, I think this is actually checking an existing CERT rule and perhaps
should be added to the CERT module as `cert-fio34-c` and perhaps that's the
only module it should live in?
================
Comment at: clang-tidy/bugprone/IoFunctionsMisusedCheck.cpp:25-31
+ has(callExpr(callee(
+ functionDecl(hasAnyName("::getwchar", "::getwc", "::fgetwc"))
+ .bind("FuncDecl")))),
+ has(callExpr(callee(
+ functionDecl(hasAnyName("::std::getwchar", "::std::getwc",
+ "::std::fgetwc"))
+ .bind("FuncDecl")))),
----------------
You can combine these `hasAnyName()` calls into one given that they are
otherwise identical matchers.
================
Comment at: clang-tidy/bugprone/IoFunctionsMisusedCheck.cpp:26
+ has(callExpr(callee(
+ functionDecl(hasAnyName("::getwchar", "::getwc", "::fgetwc"))
+ .bind("FuncDecl")))),
----------------
Why only the wide char versions and not the narrow char versions as well? For
instance, those are problematic on systems where `sizeof(int) == sizeof(char)`.
See
https://wiki.sei.cmu.edu/confluence/display/c/FIO34-C.+Distinguish+between+characters+read+from+a+file+and+EOF+or+WEOF
for more details.
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D42682
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