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llvm-project/clang-tools-extra
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Etienne Bergeron 9cfd8cea6b [clang-tidy] Add more detection rules for redundant c_str calls. 
Summary:
The string class contains methods which support receiving either a string literal or a string object.

For example, calls to append can receive either a char* or a string.
```
  string& append (const string& str);
  string& append (const char* s);
```

Which make these cases equivalent, and the .c_str() useless:
```
  std::string s = "123";
  str.append(s);
  str.append(s.c_str());
```

In these cases, removing .c_str()  doesn't provide any size or speed improvement.
It's only a readability issue.

If the string contains embedded NUL characters,  the string literal and the string
object won't produce the same semantic.

Reviewers: alexfh, sbenza

Subscribers: LegalizeAdulthood, aaron.ballman, chapuni, Eugene.Zelenko, cfe-commits

Differential Revision: http://reviews.llvm.org/D18475

llvm-svn: 266463
 		2016-04-15 18:12:06 +00:00
..
clang-apply-replacements Remove autoconf support 2016-01-26 21:31:36 +00:00
clang-query Fix Clang-tidy modernize-deprecated-headers warnings; other minor fixes. 2016-03-17 17:02:25 +00:00
clang-rename Fix Clang-tidy modernize-deprecated-headers warnings; other minor fixes. 2016-03-17 17:02:25 +00:00
clang-tidy [clang-tidy] Add more detection rules for redundant c_str calls. 2016-04-15 18:12:06 +00:00
docs [Release Notes] mention Clang-tidy misc-multiple-statement-macro check. 2016-04-15 17:32:19 +00:00
modularize Fixed some cases in the modularize assistant mode where header file names didn't translate to valid module names. 2016-03-21 23:05:14 +00:00
pp-trace Fix Clang-tidy modernize-deprecated-headers warnings; other minor fixes. 2016-03-17 17:02:25 +00:00
test [clang-tidy] Add more detection rules for redundant c_str calls. 2016-04-15 18:12:06 +00:00
tool-template Remove autoconf support 2016-01-26 21:31:36 +00:00
unittests Fix Clang-tidy modernize-deprecated-headers warnings; other minor fixes. 2016-03-17 17:02:25 +00:00
.arcconfig Update arc config to new domain. 2014-04-07 10:23:19 +00:00
.gitignore .gitignore: ignore docs/_build 2013-03-03 15:15:12 +00:00
CMakeLists.txt Add clang-tools-extra documentation to the CMake build. 2016-01-27 11:37:08 +00:00
CODE_OWNERS.TXT Updating the code owners list. 2015-09-02 20:00:41 +00:00
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:47 +00:00
README.txt Update references to new lists.llvm.org mailing lists. 2015-08-05 03:56:44 +00:00

README.txt 

//===----------------------------------------------------------------------===//
// Clang Tools repository
//===----------------------------------------------------------------------===//

Welcome to the repository of extra Clang Tools.  This repository holds tools
that are developed as part of the LLVM compiler infrastructure project and the
Clang frontend.  These tools are kept in a separate "extra" repository to
allow lighter weight checkouts of the core Clang codebase.

This repository is only intended to be checked out inside of a full LLVM+Clang
tree, and in the 'tools/extra' subdirectory of the Clang checkout.

All discussion regarding Clang, Clang-based tools, and code in this repository
should be held using the standard Clang mailing lists:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

Code review for this tree should take place on the standard Clang patch and
commit lists:
  http://lists.llvm.org/mailman/listinfo/cfe-commits

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