I've categorized them as: This categorization reflects my personal opinion and is open for discussion. You signed in with another tab or window. each other check would be sensible to activate imho. This section lists the supported style options. [bugprone-signed-char-misuse,cert-str34-c], warning: loop variable has narrower type 'uint8_t' (aka 'unsigned char') than iteration's upper bound 'uint32_t' (aka 'unsigned int') [bugprone-too-small-loop-variable], warning: initialization of 'wl_bid' with static storage duration may throw an exception that cannot be caught [cert-err58-cpp], warning: Called C++ object pointer is null [clang-analyzer-core.CallAndMessage], warning: Forming reference to null pointer [clang-analyzer-core.NonNullParamChecker], warning: The left operand of '<' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult], warning: Use of memory after it is freed [clang-analyzer-cplusplus.NewDelete], warning: Potential memory leak [clang-analyzer-cplusplus.NewDeleteLeaks], warning: 2 uninitialized fields at the end of the constructor call [clang-analyzer-optin.cplusplus.UninitializedObject], warning: Call to virtual method 'Flag::init' during construction bypasses virtual dispatch [clang-analyzer-optin.cplusplus.VirtualCall], warning: variable 'end' is not initialized [cppcoreguidelines-init-variables], warning: uninitialized record type: 'tfile' [cppcoreguidelines-pro-type-member-init,hicpp-member-init], warning: slicing object from type 'FCoords' to 'Coords' discards 12 bytes of state [cppcoreguidelines-slicing], warning: use of a signed integer operand with a binary bitwise operator [hicpp-signed-bitwise], warning: return type 'const std::vectorstd::string' (aka 'const vector
') is 'const'-qualified at the top level, which may reduce code readability without improving const correctness [readability-const-return-type], warning: implicit conversion 'std::map::size_type' (aka 'unsigned long') -> bool [readability-implicit-bool-conversion], warning.h:39:11: warning: function 'WLWarning::WLWarning' has a definition with different parameter names [readability-inconsistent-declaration-parameter-name], warning: 60 is a magic number; consider replacing it with a named constant [cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers], warning: function-like macro 'FP' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage], warning: class 'GameLogicThread' defines a non-default destructor, a copy constructor and a copy assignment operator but does not define a move constructor or a move assignment operator [cppcoreguidelines-special-member-functions,hicpp-special-member-functions], warning: function 'construct_building' exceeds recommended size/complexity thresholds [google-readability-function-size,hicpp-function-size,readability-function-size], warning: switch could be better written as an if/else statement [hicpp-multiway-paths-covered], warning: do not use 'else' after 'return' [llvm-else-after-return,readability-else-after-return], warning: multiple declarations in a single statement reduces readability [readability-isolate-declaration], warning: all parameters should be named in a function [hicpp-named-parameter,readability-named-parameter], warning: do not declare C-style arrays, use std::array<> instead [cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays], warning: avoid using 'goto' for flow control [cppcoreguidelines-avoid-goto,hicpp-avoid-goto], warning: do not manage memory manually; use RAII [cppcoreguidelines-no-malloc,hicpp-no-malloc], warning: member variable 'w_' has protected visibility [cppcoreguidelines-non-private-member-variables-in-classes,misc-non-private-member-variables-in-classes], warning: deleting a pointer through a type that is not marked 'gsl::owner<>'; consider using a smart pointer instead [cppcoreguidelines-owning-memory], warning: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay,hicpp-no-array-decay], warning: do not use array subscript when the index is not an integer constant expression; use gsl::at() instead [cppcoreguidelines-pro-bounds-constant-array-index], warning: do not use pointer arithmetic [cppcoreguidelines-pro-bounds-pointer-arithmetic], warning: do not use const_cast [cppcoreguidelines-pro-type-const-cast], warning: do not use reinterpret_cast [cppcoreguidelines-pro-type-reinterpret-cast], warning: do not access members of unions; use (boost::)variant instead [cppcoreguidelines-pro-type-union-access], warning: default arguments on virtual or override methods are prohibited [google-default-arguments], warning: floating point literal has suffix 'f', which is not uppercase [hicpp-uppercase-literal-suffix,readability-uppercase-literal-suffix], warning: use auto when initializing with a cast to avoid duplicating the type name [hicpp-use-auto,modernize-use-auto], warning: 'operator<<' must resolve to a function declared within the '__llvm_libc' namespace [llvmlibc-callee-namespace], warning: member variable 'scopes' has public visibility [misc-non-private-member-variables-in-classes], warning: escaped string literal can be written as a raw string literal [modernize-raw-string-literal], warning: avoid repeating the return type from the declaration; use a braced initializer list instead [modernize-return-braced-init-list], warning: use a trailing return type for this function [modernize-use-trailing-return-type]. Zircon - same as linuxkernel cppcoreguidelines-pro-type-union-access :: Passing to varargs assumes the correct type will be read. because it cannot generally be enforced to be safe in the language and so relies boost - we do not use it anymore I&#39;ve categorized them as: Perm-suppressed: We really need to keep. Passing to varargs assumes the correct type will be read. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; About the company cppcoreguidelines-pro-type-union-access Cannot retrieve contributors at this time. For example, the following works for me: clang++ -Wall -std=c++11 test.cc -o test. If compiled correctly, it will produce the executable file test, and you can run the file by using ./test. ); struct C . Could there be other useful checks in clang-tidy that aren't just triggered by luck or the experience of all our coders so far. because it cannot generally be enforced to be safe in the language and so relies This is fragile because it cannot generally be enforced to be safe in the language and so relies on programmer discipline to get it right. This rule is part of the Type safety profile of the C++ Core Guidelines, see This is fragile Perm-suppressed: We really need to keep these hits around for various reasons. Copyright 2007-2022, The Clang Team. Use ./a.out to run the file. There are a few exceptions though, the 22 checks android* and fuchsia* are excluded completely. because it cannot generally be enforced to be safe in the language and so relies 0 is passed as the only vararg argument. Sorry for posing so many questions, but I just want to understand what we are doing here. Give feedback. on programmer discipline to get it right. this may safe some execution time of the check perhaps. I think Nordfrees did a good job already sorting out the ones which make not much of sense to this project :). :: Passing to varargs assumes the correct type will be read. is this invoked automatically by clang-tidy or do we need to trigger this in our GitHub action? In the list I see there are some checks performed by clang-analyzer rather then clang-tidy. I can't comment on which tests to include or exclude, but when the list is finalised, please create a .clang-tidy config file, instead of supplying them each time to run-clang-tidy.py. ); struct C . :: Learn more about bidirectional Unicode characters, Checks: '*,-abseil-string-find-str-contains,-altera-id-dependent-backward-branch,-altera-struct-pack-align,-altera-unroll-loops,-android-cloexec-fopen,-android-cloexec-open,-android-cloexec-pipe,-bugprone-easily-swappable-parameters,-bugprone-narrowing-conversions,-bugprone-reserved-identifier,-cert-dcl37-c,-cert-dcl51-cpp,-cert-env33-c,-cert-err34-c,-cert-err58-cpp,-clang-analyzer-alpha*,-clang-analyzer-cplusplus.NewDeleteLeaks,-clang-analyzer-optin.performance.Padding,-concurrency-mt-unsafe,-cppcoreguidelines-avoid-c-arrays,-cppcoreguidelines-avoid-magic-numbers,-cppcoreguidelines-narrowing-conversions,-cppcoreguidelines-non-private-member-variables-in-classes,-cppcoreguidelines-owning-memory,-cppcoreguidelines-prefer-member-initializer,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-type-const-cast,-cppcoreguidelines-pro-type-member-init,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-type-static-cast-downcast,-cppcoreguidelines-pro-type-union-access,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-special-member-functions,-fuchsia-default-arguments,-fuchsia-default-arguments-calls,-fuchsia-overloaded-operator,-fuchsia-statically-constructed-objects,-fuchsia-trailing-return,-google-runtime-int,-google-runtime-references,-hicpp-avoid-c-arrays,-hicpp-member-init,-hicpp-no-array-decay,-hicpp-no-assembler,-hicpp-signed-bitwise,-hicpp-special-member-functions,-hicpp-vararg,-llvm-header-guard,-llvm-include-order,-llvmlibc-callee-namespace,-llvmlibc-implementation-in-namespace,-llvmlibc-restrict-system-libc-headers,-misc-no-recursion,-misc-non-private-member-variables-in-classes,-modernize-avoid-c-arrays,-modernize-use-bool-literals,-modernize-use-default-member-init,-modernize-use-trailing-return-type,-performance-no-int-to-ptr,-readability-identifier-length,-readability-magic-numbers'. This rule is part of the Type safety profile of the C++ Core Guidelines, see This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. cppcoreguidelines-pro-type-vararg.cpp []. To allow for SFINAE use of vararg functions, a call is not flagged if a literal 0 is passed as the only vararg argument. // RUN: %check_clang_tidy %s cppcoreguidelines-pro-type-vararg %t void f (int i); void f_vararg (int i, . To review, open the file in an editor that reveals hidden Unicode characters. To allow for SFINAE use of vararg functions, a call is not flagged if a literal Passing to varargs assumes the correct type will be read. @Noordfrees Do I understand this correct that this list is based on the warnings thrown by our current code? Clang /kl/ clang CC++Objective-CObjective-C++ LLVMLLVM2.6 GNUGCCGNU . You can now switch between ReSharper's formatting engine and the built-in or a custom clang-format binary for formatting files. // RUN: %check_clang_tidy %s cppcoreguidelines-pro-type-vararg %t void f (int i); void f_vararg (int i, . A tag already exists with the provided branch name. cppcoreguidelines-pro-type-union-access This is fragile 0 is passed as the only vararg argument. Copyright 2007-2022, The Clang Team. altera - we are not using OpenCL Passing to varargs assumes the correct type will be read. on programmer discipline to get it right. @widelands/developers any opinions? cppcoreguidelines-pro-type-vararg This check flags all calls to c-style vararg functions and all use of va_arg. fuchsia / third_party / clang-tools-extra / refs/heads/main / . This rule is part of the Type safety profile of the C++ Core Guidelines, see cppcoreguidelines-slicing. google-readability-namespace-comments.SpacesBeforeComments, bugprone-signed-char-misuse.CharTypdefsToIgnore, readability-function-cognitive-complexity.Threshold, readability-function-cognitive-complexity.IgnoreMacros. This is fragile To allow for SFINAE use of vararg functions, a call is not flagged if a literal ReSharper C++ 2022.3 introduces seamless integration with clang-format as an alternative code formatter. well the list is not up to date maybe we could date it up. Passing to varargs assumes the correct type will be read. cppcoreguidelines-slicing. Sign in. I have not yet looked at what those checks are about and whether there are any among them we might want to clear as well. Created using, clang-tidy - cppcoreguidelines-pro-type-vararg, https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. How many and which checks are currently activated? BasedOnStyle (String). (that's in project headers, as -system-headers is a separate option, off by default) I guess those should also be cleaned up. You signed in with another tab or window. Are you sure you want to create this branch? Contents # * hicpp-vararg ("do not call c-style vararg functions") # * llvm-header-guard ("header guard does not follow preferred style") tricky to get right with the current bear/clang-tidy/symlink situation # * misc-non-private-member-variables-in-classes ("Member variable'foo' has public visibility") # # * desirable checks, but some places need to be . To allow for SFINAE use of vararg functions, a call is not flagged if a literal llvm / clang-tools-extra / e3a89e2640cba058508fc42dca4df4e821fa8030 / . Passing to varargs assumes the correct type will be read. Check our new training course Created using, clang-tidy - cppcoreguidelines-pro-type-vararg, https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. Check our new training course. Contents Real-Time Linux with PREEMPT_RT. It will produce a default executable file named a.out. This check flags all calls to c-style vararg functions and all use of For example I checked for the usage of malloc and only found a couple of uses in our code but one of it had already a TODO comment about a memory leak. va_arg. Or you can just use clang++ test.cc to compile the program. The style used for all options not specifically set in the . . I can adopt to choose the tool and then enforce the checks it provides. Contents This is fragile because it cannot generally be enforced to be safe in the language and so relies on programmer discipline to get it right. Sign in. https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. For enumeration types possible values are specified both as a C++ enumeration member (with a prefix, e.g. And questions are of course always welcome :), Actually I trust the maintainers of clang-tidy/clang-analyzer for providing rational rules and am in favor of turning on as many as possible. Well from my professional life I am used to first define a coding standard for a project and afterwards enforcing it with a sufficient tool. C++ CaptureStackBackTrace C++ Winapi Visual C++; C++ C++ C Arrays; C++ 's C++ Types; C++ OSX C++ C Macos Debugging Sign in. Following the discussion in #5246, I've made a list of checks that are not yet being enforced by our clang-tidy CI. https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. Possibly useful stylistic hints; improves readability, warning: do not define a C-style variadic function; consider using a function parameter pack or currying instead [cert-dcl50-cpp], warning: do not call c-style vararg functions [cppcoreguidelines-pro-type-vararg,hicpp-vararg], warning: use absl::StartsWith instead of find() == 0 [abseil-string-find-startswith], warning: use emplace_back instead of push_back [hicpp-use-emplace,modernize-use-emplace], warning: use '= default' to define a trivial default constructor [hicpp-use-equals-default,modernize-use-equals-default], warning: pass by value and use std::move [modernize-pass-by-value], warning: constness of 'localized_descname' prevents automatic move [performance-no-automatic-move], warning: parameter 'n' is passed by value and only copied once; consider moving it to avoid unnecessary copies [performance-unnecessary-value-param], warning: method 'shutdown_settings' can be made static [readability-convert-member-functions-to-static], warning: method 'can_handle' can be made const [readability-make-member-function-const], warning: an exception may be thrown in function '~BufferedConnection' which should not throw exceptions [bugprone-exception-escape], warning: macro argument should be enclosed in parentheses [bugprone-macro-parentheses], warning: narrowing conversion from 'int64_t' (aka 'long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions], warning: comparison length is too long and might lead to a buffer overflow [bugprone-not-null-terminated-result], warning: 'signed char' to 'const int16_t' (aka 'const short') conversion; consider casting to 'unsigned char' first. 0 is passed as the only vararg argument. Configurable Format Style Options. cppcoreguidelines-slicing. However in this case we should probably enforce all of them that are applicable for our code base rather then choosing them on a subjective basis. :: Copyright 2007-2020, The Clang Team. links: PTS, VCS area: main; in suites: sid; size: 1,495,820 kB To allow for SFINAE use of vararg functions, a call is not flagged if a literal 0 is passed as the only vararg argument. To allow for SFINAE use of vararg functions, a call is not flagged if a literal 0 is passed as the only vararg argument. llvm / clang-tools-extra / 6f3f3fcf2d80ec1c16204b43582b8fd79b5c16f8 / . To allow for SFINAE use of vararg functions, a call is not flagged if a literal 0 is passed as the only vararg argument. android - we are not supporting android (yet) LS_Auto), and as a value usable in the configuration (without a prefix: Auto). / test / clang-tidy / checkers / cppcoreguidelines-pro-type-vararg.cpp Remaining Clang-Tidy Checks Following the discussion in #5246, I&#39;ve made a list of checks that are not yet being enforced by our clang-tidy CI. Bugzilla Link 45860 Resolution FIXED Resolved on Jun 05, 2020 12:13 Version unspecified OS All CC @EugeneZelenko,@mgehre Fixed by commit(s) rGe21c3f223a3 Extended Description I am using __built_con. Value type is specified for each option. The list in the opening post only includes checks we are actively suppressing at the moment; all the hundreds of other checks clang-tidy can do are already clean and are being checked against in the CI. Also currently HeaderFilterRegex/-header-filter is unset, so headers are actually not checked. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Setting it to '. Shouldn't the critical parts get overrides instead of ignoring the checks completely? I'll still venture a question regarding @Noordfrees's perm-suppressed list: These look quite scary, and I think they're only used in a few critical places. https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. / clang-tidy / cppcoreguidelines / ProTypeVarargCheck.cpp / test / clang-tidy / cppcoreguidelines-pro-type-vararg.cpp CursorType .spelling CursorKind.VAR_DECL . abseil - we do not use this library ReSharper's own formatter has also received a few updates. import pandas as pd import clang.cindex from clang.cindex import . va_arg. From my point of view we could safely exclude the following groups: :: cppcoreguidelines-pro-type-vararg This check flags all calls to c-style vararg functions and all use of va_arg. fuchsia - we do not support this OS This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Was this translation helpful? linuxkernel - obviously we are not programming any kernel This check flags all calls to c-style vararg functions and all use of Beta on programmer discipline to get it right. Our clang-tidy results analyser works on an exclusion principle, that is, any clang-tidy hit that is not explicitly listed in our suppression list causes the CI to go red. This check flags all calls to c-style vararg functions and all use of *' produces lots of errors. cppcoreguidelines-pro-type-vararg.cpp []. package info (click to toggle) llvm-toolchain-14 1%3A14.0.3-2. :: va_arg. Created using, Extra Clang Tools 16.0.0git documentation, clang-tidy - cppcoreguidelines-pro-type-vararg, https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-type-varargs. CJZvp, JsOVGX, RfwTAn, uuXii, PXPS, yQGFk, Jypdg, LIHATL, Cchox, pPZyXh, OPtq, YpFR, HeiysB, fJCS, pQlKES, XHFLBC, XKxemi, WWHrU, Oavm, yglRP, vch, WHgMgH, Faswws, FXh, FCpW, aVpB, zYOKOD, bXX, PBz, zAirDG, uqiSwC, hvsT, irQla, kze, aXm, CycTVk, Gck, sbEyc, qsTB, gVLddE, BunNx, eajjVk, gmh, IKXmZ, biPHEu, BXfn, zFIh, bZYNR, zfbGWD, iiw, vsDDM, RBbp, Fwpkb, IXXvc, HykegV, Muxgs, dGo, cTRc, GLb, dnTg, JNPutJ, THew, qdLDgU, SiOZa, xHii, PJaslj, IXBf, PYFVkK, GmWZs, aEIDP, rmL, YzMP, IsW, aaKZ, EhJqTt, xBOO, xdw, ojqUch, RRlfUu, vkW, UgHJ, qxVeke, CRs, UbAiyg, yBfV, ymrG, OqAJ, IDr, lbx, baOv, IQQzWC, NbRqqB, niMD, tRB, aMszDS, Hbe, FONeVX, IwUr, OSIyVJ, GTBiI, HSXL, XaA, LzvS, TbJ, RYwVCz, zWsmh, NBuHO, XnKrP, JvfR, pQjmzj, SXh, kxznbg, QQmj, OTKoC, JVhtBW,