clang-tools
10.0.0git
|
Finds signed char
-> integer conversions which might indicate a programming error.
More...
#include <SignedCharMisuseCheck.h>
Public Member Functions | |
SignedCharMisuseCheck (StringRef Name, ClangTidyContext *Context) | |
void | storeOptions (ClangTidyOptions::OptionMap &Opts) override |
Should store all options supported by this check with their current values or default values for options that haven't been overridden. More... | |
void | registerMatchers (ast_matchers::MatchFinder *Finder) override |
Override this to register AST matchers with Finder . More... | |
void | check (const ast_matchers::MatchFinder::MatchResult &Result) override |
ClangTidyChecks that register ASTMatchers should do the actual work in here. More... | |
![]() | |
ClangTidyCheck (StringRef CheckName, ClangTidyContext *Context) | |
Initializes the check with CheckName and Context . More... | |
virtual void | registerPPCallbacks (const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP) |
Override this to register PPCallbacks in the preprocessor. More... | |
DiagnosticBuilder | diag (SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning) |
Add a diagnostic with the check's name. More... | |
Additional Inherited Members | |
![]() | |
StringRef | getCurrentMainFile () const |
Returns the main file name of the current translation unit. More... | |
const LangOptions & | getLangOpts () const |
Returns the language options from the context. More... | |
![]() | |
OptionsView | Options |
Finds signed char
-> integer conversions which might indicate a programming error.
The basic problem with the signed char
, that it might store the non-ASCII characters as negative values. The human programmer probably expects that after an integer conversion the converted value matches with the character code (a value from [0..255]), however, the actual value is in [-128..127] interval. This also applies to the plain char
type on those implementations which represent char
similar to signed char
.
For the user-facing documentation see: http://clang.llvm.org/extra/clang-tidy/checks/bugprone-signed-char-misuse.html
Definition at line 28 of file SignedCharMisuseCheck.h.
clang::tidy::bugprone::SignedCharMisuseCheck::SignedCharMisuseCheck | ( | StringRef | Name, |
ClangTidyContext * | Context | ||
) |
Definition at line 27 of file SignedCharMisuseCheck.cpp.
|
overridevirtual |
ClangTidyChecks
that register ASTMatchers should do the actual work in here.
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 79 of file SignedCharMisuseCheck.cpp.
|
overridevirtual |
Override this to register AST matchers with Finder
.
This should be used by clang-tidy checks that analyze code properties that dependent on AST knowledge.
You can register as many matchers as necessary with Finder
. Usually, "this" will be used as callback, but you can also specify other callback classes. Thereby, different matchers can trigger different callbacks.
If you need to merge information between the different matchers, you can store these as members of the derived class. However, note that all matches occur in the order of the AST traversal.
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 36 of file SignedCharMisuseCheck.cpp.
|
overridevirtual |
Should store all options supported by this check with their current values or default values for options that haven't been overridden.
The check should use Options.store()
to store each option it supports whether it has the default value or it has been overridden.
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 32 of file SignedCharMisuseCheck.cpp.