#CLION CLANG CODE#

So std::less was specified to be a specialization where all its members are templates - so they use whatever types they are called with, rather than baking in the KeyType - hence transparent. ItвЂ™s that KeyType thatвЂ™s causing our issue. The associative containers take a template argument for a comparator, which defaults to std::less. So C++14 introduced transparent comparators. That all seems a shame, given that weвЂ™re only using the string to compare against each element - and comparisons already work across these string types. If that is an issue for you itвЂ™s hard to spot that just by looking at it. ItвЂ™s a const-ref to a string, but it will still have to create a temporary string and copy the characters in. We are passing a string literal, but find takes its argument by the key type of the container - in this case std::string. And when you run that, it will work as you might expect and produce the results you intended. So letвЂ™s take a look at something less obvious. And note the link to a more in-depth rule description.Д«ut the benefits of using const, here, are well known, and itвЂ™s often easy to spot them by eye. clang-tidy has the readability-non-const-parameter check, which has the same goal, but, at time of writing, only works for pointers to numeric types - so for:Д¬lang-tidy is silent, but SonarLint reports:

Some of what SonarLint calls Rules are expanded forms of Inspections already found in CLion in a more limited form (often coming from clang-tidy).ДЄ great example of this is S995, which detects if parameters, taken by pointer or reference, could be made const. Rules that build on Checks and InspectionsД¬Lion has a great set of what it calls Inspections already built in - many of which it integrates directly from clang-tidy Checks.

Through that lens, we want to show how you can leverage them to elevate your CLionвЂ™s inbuilt static analysis capabilities. In this post, we want to demonstrate the powerful capabilities of the C++ analyzer with SonarLint (a free, in-IDE static analysis plugin) and highlight some unique and interesting rules that you might find useful.

#CLION CLANG CODE#

Since then, the team has continued to bring even greater value to the C and C++ users, continuing our mission to empower the community to deliver code that meets the highest quality and security standards. Earlier this year we launched the support for C and C++ in SonarLint for CLion to address quality and security issues for your C/C++ projects.

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