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1==========2ClangCheck3==========4 5`ClangCheck` is a small wrapper around :doc:`LibTooling` which can be used to6do basic error checking and AST dumping.7 8.. code-block:: console9 10 $ cat <<EOF > snippet.cc11 > void f() {12 > int a = 013 > }14 > EOF15 $ ~/clang/build/bin/clang-check snippet.cc -ast-dump --16 Processing: /Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc.17 /Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:2:12: error: expected ';' at end of18 declaration19 int a = 020 ^21 ;22 (TranslationUnitDecl 0x7ff3a3029ed0 <<invalid sloc>>23 (TypedefDecl 0x7ff3a302a410 <<invalid sloc>> __int128_t '__int128')24 (TypedefDecl 0x7ff3a302a470 <<invalid sloc>> __uint128_t 'unsigned __int128')25 (TypedefDecl 0x7ff3a302a830 <<invalid sloc>> __builtin_va_list '__va_list_tag [1]')26 (FunctionDecl 0x7ff3a302a8d0 </Users/danieljasper/clang/llvm/tools/clang/docs/snippet.cc:1:1, line:3:1> f 'void (void)'27 (CompoundStmt 0x7ff3a302aa10 <line:1:10, line:3:1>28 (DeclStmt 0x7ff3a302a9f8 <line:2:3, line:3:1>29 (VarDecl 0x7ff3a302a980 <line:2:3, col:11> a 'int'30 (IntegerLiteral 0x7ff3a302a9d8 <col:11> 'int' 0))))))31 1 error generated.32 Error while processing snippet.cc.33 34The '--' at the end is important as it prevents :program:`clang-check` from35searching for a compilation database. For more information on how to setup and36use :program:`clang-check` in a project, see :doc:`HowToSetupToolingForLLVM`.37