Major New Features¶

...

Improvements to clang-query¶

The improvements are...

Improvements to clang-rename¶

The improvements are...

Improvements to clang-tidy¶

• New module fuchsia for Fuchsia style checks.

• New module objc for Objective-C style checks.

• New android-cloexec-accept check

  Detects usage of accept().

• New android-cloexec-accept4 check

  Checks if the required file flag SOCK_CLOEXEC is present in the argument of accept4().

• New android-cloexec-dup check

  Detects usage of dup().

• New android-cloexec-epoll-create check

  Detects usage of epoll_create().

• New android-cloexec-epoll-create1 check

  Checks if the required file flag EPOLL_CLOEXEC is present in the argument of epoll_create1().

• New android-cloexec-inotify-init check

  Detects usage of inotify_init().

• New android-cloexec-inotify-init1 check

  Checks if the required file flag IN_CLOEXEC is present in the argument of inotify_init1().

• New android-cloexec-memfd_create check

  Checks if the required file flag MFD_CLOEXEC is present in the argument of memfd_create().

• New bugprone-copy-constructor-init check

  Finds copy constructors which don’t call the copy constructor of the base class.

• New bugprone-integer-division check

  Finds cases where integer division in a floating point context is likely to cause unintended loss of precision.

• New bugprone-misplaced-operator-in-strlen-in-alloc check

  Finds cases where 1 is added to the string in the argument to strlen(), strnlen(), strnlen_s(), wcslen(), wcsnlen(), and wcsnlen_s() instead of the result and the value is used as an argument to a memory allocation function (malloc(), calloc(), realloc(), alloca()) or the new[] operator in C++.

• New cppcoreguidelines-owning-memory check

  This check implements the type-based semantic of gsl::owner<T*>, but without flow analysis.

• New fuchsia-default-arguments check

  Warns if a function or method is declared or called with default arguments.

• New fuchsia-overloaded-operator check

  Warns if an operator is overloaded, except for the assignment (copy and move) operators.

• New fuchsia-virtual-inheritance check

  Warns if classes are defined with virtual inheritance.

• New google-objc-avoid-throwing-exception check

  Finds uses of throwing exceptions usages in Objective-C files.

• New google-objc-global-variable-declaration check

  Finds global variable declarations in Objective-C files that do not follow the pattern of variable names in Google’s Objective-C Style Guide.

• New hicpp-exception-baseclass check

  Ensures that all exception will be instances of std::exception and classes that are derived from it.

• New hicpp-signed-bitwise check

  Finds uses of bitwise operations on signed integer types, which may lead to undefined or implementation defined behaviour.

• New objc-avoid-nserror-init check

  Finds improper initialization of NSError objects.

• New objc-avoid-spinlock check

  Finds usages of OSSpinlock, which is deprecated due to potential livelock problems.

• New objc-forbidden-subclassing check

  Finds Objective-C classes which are subclasses of classes which are not designed to be subclassed.

• New objc-property-declaration check

  Finds property declarations in Objective-C files that do not follow the pattern of property names in Apple’s programming guide.

• New readability-static-accessed-through-instance check

  Finds member expressions that access static members through instances and replaces them with uses of the appropriate qualified-id.

• The ‘misc-argument-comment’ check was renamed to bugprone-argument-comment

• The ‘misc-assert-side-effect’ check was renamed to bugprone-assert-side-effect

• The ‘misc-bool-pointer-implicit-conversion’ check was renamed to bugprone-bool-pointer-implicit-conversion

• The ‘misc-dangling-handle’ check was renamed to bugprone-dangling-handle

• The ‘misc-fold-init-type’ check was renamed to bugprone-fold-init-type

• The ‘misc-forward-declaration-namespace’ check was renamed to bugprone-forward-declaration-namespace

• The ‘misc-inaccurate-erase’ check was renamed to bugprone-inaccurate-erase

• The ‘misc-inefficient-algorithm’ check was renamed to performance-inefficient-algorithm

• The ‘misc-move-const-arg’ check was renamed to performance-move-const-arg

• The ‘misc-move-constructor-init’ check was renamed to performance-move-constructor-init

• The ‘misc-move-forwarding-reference’ check was renamed to bugprone-move-forwarding-reference

• The ‘misc-multiple-statement-macro’ check was renamed to bugprone-multiple-statement-macro

• The ‘misc-noexcept-move-constructor’ check was renamed to performance-noexcept-move-constructor

• The ‘misc-string-constructor’ check was renamed to bugprone-string-constructor

• The ‘misc-use-after-move’ check was renamed to bugprone-use-after-move

• The ‘performance-implicit-cast-in-loop’ check was renamed to performance-implicit-conversion-in-loop

• The ‘readability-implicit-bool-cast’ check was renamed to readability-implicit-bool-conversion

  The check’s options were renamed as follows:

  • AllowConditionalIntegerCasts -> AllowIntegerConditions,
  • AllowConditionalPointerCasts -> AllowPointerConditions.

• Added modernize-use-emplace.IgnoreImplicitConstructors option.

• Added aliases for the High Integrity C++ Coding Standard to already implemented checks in other modules.

  • hicpp-deprecated-headers
  • hicpp-move-const-arg
  • hicpp-no-array-decay
  • hicpp-no-malloc
  • hicpp-static-assert
  • hicpp-use-auto
  • hicpp-use-emplace
  • hicpp-use-noexcept
  • hicpp-use-nullptr
  • hicpp-vararg

• Added the ability to suppress specific checks (or all checks) in a NOLINT or NOLINTNEXTLINE comment.

• Added new functionality to misc-redundant-expression check

  Finds redundant binary operator expressions where the operators are overloaded, and ones that contain the same macros twice. Also checks for assignment expressions that do not change the value of the assigned variable, and expressions that always evaluate to the same value because of possible operator confusion.

Improvements to include-fixer¶

The improvements are...

Improvements to modularize¶

The improvements are...