For questions about clang-tidy as a static analyzer and code modernization tool. For more generic questions such as compiler diagnostic messages use the clang tag.
Questions tagged [clang-tidy]
404 questions
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Also get inherited fields of CXXRecordDecl
Is it possible to get all fields that are defined explicitly and implicitly (inherited from parent classes) apart from iterating over a CXXRecordDecl's bases recursively and evaluating along the way, using C++'s inheritance and access rules, whether…
llambdaa
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1
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1 answer
clang-tidy: Assigned value is garbage or undefined when accessing raw memory of an array or struct
When running clang-tidy I get an warning when accessing an address of an array:
src/main.cpp:10:9: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]
sum += *(addr++);
^
The code is stripped down…
Charly
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1
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1 answer
How to exclude single checks from clang-tidy file?
Let's talk about this simple example:
#include
int main(int argc, char *argv[])
{
std::cout << "started " << argv[0] << " with " << argc << " params." << std::endl;
return 0;
}
We have a minimal .clang-tidy file which looks like…
Charly
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1
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1 answer
Clang-Tidy : readability-function-cognitive-complexity.DescribeBasicIncrements value has no effect
While running clang-tidy on an example code provided at https://clang.llvm.org/extra/clang-tidy/checks/readability/function-cognitive-complexity.html (function3 in the examples).
with the below command
clang-tidy.exe Example.cpp -config="{Checks:…
talekeDskobeDa
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0 answers
Clang Tidy Integration with msbuild command line
I have worked on previous projects using CMake and clang tidy and was able to generate the compilation database. However, I am working on project using C++ builder and would like to run clang tidy on the codebase. There doesn't seem to be much…
user2020
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0 answers
I want to show a clang-tidy parsing report in SonarQube, but there is no output after loading
I want to show a clang-tidy parsing report in SonarQube (Community Edition) using the "C ++ (Community)" plugin. But there is no output after loading. From sonarcub I need to display clang-tidy reports and no analysis is needed.
file…
sly_fox_alex
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1
vote
1 answer
Why is clang-tidy scanning other header files?
I'm running clang-tidy on a header file header.h. However as some of the warning outputs, it's outputting system headers:
.../include/c++/8/bits/std_abs.h:46:8: error: expected identifier or '(' [clang-diagnostic-error]
extern…
helloworld95
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1
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1 answer
clang-tidy readability-identifier-naming IgnoredRegexp
I want to exclude certain regex patterns from linting for readability-identifier-naming.
Part of .clang-tidy I'm using:
Checks: 'readability-*'
CheckOptions:
- key: readability-identifier-naming.TypeAliasCase
value: …
PHD
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1
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1 answer
Clang tidy doesn't work for StaticConstantCase
I'm trying to use clang-tidy (10.0.0) to check the formatting on my file:
#include "blabla.h"
static const int status = 1000;
static const int STATUS_REPLY_TIMEOUT_MS = 100;
namespace foo {
The .clang-tidy file I'm using is:
Checks:…
Frank
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1
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0 answers
Clang: How can I tell whether size of constant size array declaration is a macro expansion
I'm working on a clang-tidy checker to spot some problematic idioms in a large codebase. I need to look at constant-size arrays declared in structs, and determine whether the size was given as an integer literal, or if the size results from a macro…
tauchris
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0 answers
Writing a Clang-Tidy check, how do I find if a pointer is initialized before it is called?
I am trying to port some static checks from an old in-house C++ static checker to clang-tidy.
Since I am really new to this tool, I am having a really hard time doing it and I am starting to think that it's not the proper tool to do what I want.
So…
FLP
- 11
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1
vote
1 answer
Matching variadic template arguments using an AST Matcher
I have the following sample code.
template
T add(T first, Args... rest) {
return first + add(rest...);
}
int add(int a, int b) {
return a + b;
}
When I run it through clang-check -ast-dump, I get the following…
oranji
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0 answers
Why don't I get a warning when passing a negative integer to a function that accepts unsigned int?
If I write this function:
void f(unsigned int i) { .. }
and then call it like this:
int main() { f(-1); }
it is allowed by the standard, but it is most probably a risky bug that can cause, for example, a very long runtime (if f tries to loop from…
Erel Segal-Halevi
- 33,955
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1
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1 answer
How to turn off checks on a per-file or per-function basis?
I am wondering what the best approach is to turn off some clang-tidy checks for either a given file or for a given function. For example, I want to turn on multi-thread warnings for the whole project, but I have a simple tool that uses the library…
jens
- 168
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1
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0 answers
Why are xutility, xstddef, … analyzed by clang-tidy although they're not used in the build?
I'm linting a project with clang-tidy and I'm getting errors from files which are not included in the project. These files are for example:
C:\Program Files (x86)\Microsoft Visual…
marcel
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