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Roman Lebedev 2634bd5995 [clang-tidy] Avoid C arrays check 
Summary:
[[ https://bugs.llvm.org/show_bug.cgi?id=39224 | PR39224 ]]
As discussed, we can't always do the transform automatically due to that array-to-pointer decay of C array.
In order to detect whether we can do said transform, we'd need to be able to see all usages of said array,
which is, i would say, rather impossible if e.g. it is in the header.
Thus right now no fixit exists.

Exceptions: `extern "C"` code.

References:
* [[ https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es27-use-stdarray-or-stack_array-for-arrays-on-the-stack | CPPCG ES.27: Use std::array or stack_array for arrays on the stack ]]
* [[ https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#slcon1-prefer-using-stl-array-or-vector-instead-of-a-c-array | CPPCG SL.con.1: Prefer using STL array or vector instead of a C array ]]
* HICPP `4.1.1 Ensure that a function argument does not undergo an array-to-pointer conversion`
* MISRA `5-2-12 An identifier with array type passed as a function argument shall not decay to a pointer`

Reviewers: aaron.ballman, JonasToth, alexfh, hokein, xazax.hun

Reviewed By: JonasToth

Subscribers: Eugene.Zelenko, mgorny, rnkovacs, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D53771

llvm-svn: 346835
 		2018-11-14 09:01:08 +00:00
clang [HIP] Fix device only compilation 2018-11-14 04:47:31 +00:00
clang-tools-extra [clang-tidy] Avoid C arrays check 2018-11-14 09:01:08 +00:00
compiler-rt [CMake] Passthrough CFLAGS when checking the compiler-rt path 2018-11-14 00:09:26 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc r600: Add datalayout to image builtin implementation 2018-11-10 21:43:40 +00:00
libcxx [libcxx] [test] Strip trailing whitespace. NFC. 2018-11-14 03:06:06 +00:00
libcxxabi [CMake] Passthrough CFLAGS when checking the compiler-rt path 2018-11-14 00:09:26 +00:00
libunwind [CMake] Passthrough CFLAGS when checking the compiler-rt path 2018-11-14 00:09:26 +00:00
lld [PDB] Simplify symbol handling code, NFC 2018-11-13 23:44:39 +00:00
lldb Fix a bug in the parsing of the LC_BUILD_VERSION Mach-O load command. 2018-11-13 23:14:37 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [X86] Add -x86-experimental-vector-widening command lines to pmulh.ll 2018-11-14 07:51:26 +00:00
openmp [OPENMP]Make lambda mapping follow reqs for PTR_AND_OBJ mapping. 2018-11-08 15:47:30 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [CMake] Fix generation of exported targets in build directory 2018-11-06 15:18:17 +00:00
README.md Update the project name in README.md 2018-10-19 00:03:01 +00:00

README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.