Official docs:
Adds pointer qualifications to auto-typed variables that are deduced to
pointers. This makes it obvious if a auto typed variable is a pointer.
This check will transform auto to auto * when the type is deduced to be
a pointer.
Official docs:
Replaces assert() with static_assert() if the condition is evaluable
at compile time. The condition of static_assert() is evaluated at
compile time which is safer and more efficient.
Official docs:
Finds assert() with side effect. The condition of assert() is
evaluated only in debug builds so a condition with side effect can
cause different behavior in debug / release builds.
Official docs:
This check replaces the uses of the deprecated class std::auto_ptr by
std::unique_ptr (introduced in C++11). The transfer of ownership, done
by the copy-constructor and the assignment operator, is changed to
match std::unique_ptr usage by using explicit calls to std::move().
Official docs:
The check diagnoses any static_assert declaration with an empty string
literal and provides a fix-it to replace the declaration with a
single-argument static_assert declaration.
Official docs:
Correct indentation helps to understand code. Mismatch of the
syntactical structure and the indentation of the code may hide serious
problems.
Instead of disabling all checks + specifying which are enabled
(whitelist), enable all checks + specify which checks are disabled
(blacklist). The same set of checks executes as before.
Motivation:
a) Given the goal to (generally) enable as many checks as possible, a
blacklist produces a smaller and easier to maintain .clang-tidy file.
b) Many new checks introduced with LLVM 12/13/14 were forgotten to turn
on. A blacklist makes sure that future compiler upgrades enable new
checks by default.
Omitted new checks which produce too many matches or which are
controversial (e.g. readability-identifier-length).
New checks:
- misc-misleading-bidirectional + misc-misleading-identifier
Detects potential attack as described in the Trojan Source attack
- modernize-macro-to-enum
Replaces groups of adjacent macros with an unscoped anonymous enum
- modernize-shrink-to-fit
Replace copy and swap tricks on shrinkable containers with the
shrink_to_fit() method call
- modernize-use-transparent-functors
Prefer transparent functors to non-transparent ones
- modernize-use-uncaught-exceptions
This check will warn on calls to std::uncaught_exception and replace
them with calls to std::uncaught_exceptions (uncaught_exception was
deprecated with C++17)
- performance-no-int-to-ptr
Diagnoses every integer to pointer cast
- readability-duplicate-include
Looks for duplicate includes and removes them
- readability-redundant-preprocessor
Finds potentially redundant preprocessor directives
- bugprone-lambda-function-name
Checks for attempts to get the name of a function from within a lambda
expression
- bugprone-redundant-branch-condition
Finds condition variables in nested if statements that were also
checked in the outer if statement and were not changed
- bugprone-shared-ptr-array-mismatch
Finds initializations of C++ shared pointers to non-array type that
are initialized with an array
- bugprone-stringview-nullptr
Checks for various ways that the const CharT* constructor of
std::basic_string_view can be passed a null argument and replaces them
with the default constructor in most cases
- bugprone-suspicious-memory-comparison
Finds potentially incorrect calls to memcmp() based on properties of
the arguments
- not having everyone append new checks at the end means fewer merge
conflicts
- also removed check "misc-unconventional-assign-operator" which was
duplicated
