llvm-project/clang
Bruno Cardoso Lopes edf3d81cbf [Sema] Add sizeof diagnostics for bzero
For memset (and others) we can get diagnostics like:

  struct stat { int x; };
  void foo(struct stat *stamps) {
    bzero(stamps, sizeof(stamps));
    memset(stamps, 0, sizeof(stamps));
  }

  t.c:7:28: warning: 'memset' call operates on objects of type 'struct stat' while the size is based on a different type 'struct stat *' [-Wsizeof-pointer-memaccess]
    memset(stamps, 0, sizeof(stamps));
           ~~~~~~            ^~~~~~
  t.c:7:28: note: did you mean to dereference the argument to 'sizeof' (and multiply it by the number of elements)?
    memset(stamps, 0, sizeof(stamps));
                             ^~~~~~

This patch implements the same class of warnings for bzero.

Differential Revision: https://reviews.llvm.org/D22525

rdar://problem/18963514

llvm-svn: 277787
2016-08-04 23:55:22 +00:00
..
INPUTS
bindings Enable support for __float128 in Clang and enable it on pertinent platforms 2016-05-09 08:52:33 +00:00
cmake Add CLANG_BUILD_TOOLS as a clang counterpart for LLVM_BUILD_TOOLS 2016-07-10 01:44:00 +00:00
docs Make isExternC work on VarDecls too. 2016-08-04 10:02:03 +00:00
examples Revert r276973 "Adjust Registry interface to not require plugins to export a registry" 2016-07-28 17:17:22 +00:00
include [ADT] Migrate DepthFirstIterator to use NodeRef 2016-08-04 23:03:44 +00:00
lib [Sema] Add sizeof diagnostics for bzero 2016-08-04 23:55:22 +00:00
runtime [CMake] Adding USES_TERMINAL to a few additional custom targets 2016-06-28 20:30:52 +00:00
test [Sema] Add sizeof diagnostics for bzero 2016-08-04 23:55:22 +00:00
tools [analyzer] Fix execution permissions for the scan-build-py scripts. 2016-08-01 10:55:59 +00:00
unittests Make isExternC work on VarDecls too. 2016-08-04 10:02:03 +00:00
utils Revert "[Order Files] Remove dtrace predicate" 2016-08-02 18:23:56 +00:00
www [analyzer] Update the web manual for checker developers. 2016-07-28 20:13:14 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.clang-format
.clang-tidy Try to use readability-identifier-naming check on Clang. 2016-04-13 08:59:49 +00:00
.gitignore Add the clang debug info test directory to .gitignore as it's managed separately. 2016-01-29 01:35:55 +00:00
CMakeLists.txt Support setting default value for -rtlib at build time 2016-07-27 08:15:54 +00:00
CODE_OWNERS.TXT Added Anastasia Stulova as a code owner for OpenCL 2016-02-03 18:51:19 +00:00
INSTALL.txt
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:44 +00:00
ModuleInfo.txt
NOTES.txt
README.txt

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:              http://clang.llvm.org/
Building and using Clang:          http://clang.llvm.org/get_started.html
Clang Static Analyzer:             http://clang-analyzer.llvm.org/
Information on the LLVM project:   http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/