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| author | Matthias Gehre <M.Gehre@gmx.de> | 2015-11-08 21:10:39 +0000 |
|---|---|---|
| committer | Matthias Gehre <M.Gehre@gmx.de> | 2015-11-08 21:10:39 +0000 |
| commit | eeb71758cc32933863a8f165c1a63c517fd9283a (patch) | |
| tree | 470284cd44e5ecce4db918dd097e91ccb265cc19 /clang-tools-extra/docs | |
| parent | f85ad0411f1dcec5a1da1958c2663a50e8c2748b (diff) | |
| download | bcm5719-llvm-eeb71758cc32933863a8f165c1a63c517fd9283a.tar.gz bcm5719-llvm-eeb71758cc32933863a8f165c1a63c517fd9283a.zip | |
[clang-tidy] add new check cppcoreguidelines-pro-type-cstyle-cast
Summary:
This check flags all use of c-style casts that perform a static_cast
downcast, const_cast, or reinterpret_cast.
Use of these casts can violate type safety and cause the program to
access a
variable that is actually of type X to be accessed as if it were of an
unrelated type Z. Note that a C-style (T)expression cast means to
perform
the first of the following that is possible: a const_cast, a
static_cast, a
static_cast followed by a const_cast, a reinterpret_cast, or a
reinterpret_cast followed by a const_cast. This rule bans (T)expression
only when used to perform an unsafe cast.
This rule is part of the "Type safety" profile of the C++ Core
Guidelines, see
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-type4-dont-use-c-style-texpression-casts-that-would-perform-a-static_cast-downcast-const_cast-or-reinterpret_cast.
Reviewers: alexfh, sbenza, bkramer, aaron.ballman
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D14096
llvm-svn: 252425
Diffstat (limited to 'clang-tools-extra/docs')
| -rw-r--r-- | clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-pro-type-cstyle-cast.rst | 15 | ||||
| -rw-r--r-- | clang-tools-extra/docs/clang-tidy/checks/list.rst | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-pro-type-cstyle-cast.rst b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-pro-type-cstyle-cast.rst new file mode 100644 index 00000000000..900c1a1b404 --- /dev/null +++ b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-pro-type-cstyle-cast.rst @@ -0,0 +1,15 @@ +cppcoreguidelines-pro-type-cstyle-cast +====================================== + +This check flags all use of C-style casts that perform a static_cast downcast, const_cast, or reinterpret_cast. + +Use of these casts can violate type safety and cause the program to access a +variable that is actually of type X to be accessed as if it were of an +unrelated type Z. Note that a C-style (T)expression cast means to perform +the first of the following that is possible: a const_cast, a static_cast, a +static_cast followed by a const_cast, a reinterpret_cast, or a +reinterpret_cast followed by a const_cast. This rule bans (T)expression +only when used to perform an unsafe cast. + +This rule is part of the "Type safety" profile of the C++ Core Guidelines, see +https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-type4-dont-use-c-style-texpression-casts-that-would-perform-a-static_cast-downcast-const_cast-or-reinterpret_cast. diff --git a/clang-tools-extra/docs/clang-tidy/checks/list.rst b/clang-tools-extra/docs/clang-tidy/checks/list.rst index 3551abced3e..b492b927c31 100644 --- a/clang-tools-extra/docs/clang-tidy/checks/list.rst +++ b/clang-tools-extra/docs/clang-tidy/checks/list.rst @@ -7,6 +7,7 @@ List of clang-tidy Checks cppcoreguidelines-pro-bounds-array-to-pointer-decay cppcoreguidelines-pro-bounds-pointer-arithmetic cppcoreguidelines-pro-type-const-cast + cppcoreguidelines-pro-type-cstyle-cast cppcoreguidelines-pro-type-reinterpret-cast cppcoreguidelines-pro-type-static-cast-downcast cppcoreguidelines-pro-type-union-access |
