Summary:
The documentation assumed expertise with FileCheck; many clang-tidy check
authors may not have significant exposure to FileCheck, and so it's worth
spending a few more words here to spell things out.
Reviewers: alexfh
Subscribers: cfe-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D28189
llvm-svn: 290838
This check detects and fixes redundant null checks before deletes.
Patch by: Gergely Angeli!
Differential Revision: https://reviews.llvm.org/D21298
llvm-svn: 290784
I have a created a new check for clang tidy: misc-string-compare. This will check for incorrect usage of std::string::compare when used to check equality or inequality of string instead of the string equality or inequality operators.
Example:
```
std::string str1, str2;
if (str1.compare(str2)) {
}
```
Reviewers: hokein, aaron.ballman, alexfh, malcolm.parsons
Subscribers: xazax.hun, Eugene.Zelenko, cfe-commits, malcolm.parsons, Prazek, mgorny, JDevlieghere
Differential Revision: https://reviews.llvm.org/D27210
llvm-svn: 290747
The checker detects various cases when an enum is probably misused
(as a bitmask).
Patch by: Peter Szecsi!
Differential Revision: https://reviews.llvm.org/D22507
llvm-svn: 290600
Summary:
An addition to the move-constructor-init check was duplicating the
modernize-pass-by-value check.
Remove the additional check and UseCERTSemantics option.
Run the move-constructor-init test with both checks enabled.
Fix modernize-pass-by-value false-positive when initializing a base
class.
Add option to modernize-pass-by-value to only warn about parameters
that are already values.
Reviewers: alexfh, flx, aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D26453
llvm-svn: 290051
Summary:
Use auto when declaring variables that are initialized by calling a templated
function that returns its explicit first argument.
Fixes PR26763.
Reviewers: aaron.ballman, alexfh, staronj, Prazek
Subscribers: Eugene.Zelenko, JDevlieghere, cfe-commits
Differential Revision: https://reviews.llvm.org/D27166
llvm-svn: 289797
Summary:
This checks for calls to double-precision math.h with single-precision
arguments. For example, it suggests replacing ::sin(0.f) with
::sinf(0.f).
Subscribers: mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D27284
llvm-svn: 289627
Summary:
This checker flags the use of C-style memory management functionality and notes about modern alternatives.
In an earlier revision it tried to autofix some kind of patterns, but that was a bad idea. Since memory management can be so widespread in a program, manual updating is most likely necessary.
Maybe for special cases, there could be later additions to this basic checker.
This is the first checker I wrote and I never did something with clang (only compiling programs). So whenever I missed conventions or did plain retarded stuff, feel free to point it out! I am willing to fix them and write a better checker.
I hope the patch does work, I never did this either. On a testapply in my repository it did, but I am pretty unconfident in my patching skills :)
Reviewers: aaron.ballman, hokein, alexfh, malcolm.parsons
Subscribers: cfe-commits, JDevlieghere, nemanjai, Eugene.Zelenko, Prazek, mgorny, modocache
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D26167
Patch by Jonas Toth!
llvm-svn: 289546
Summary: I came across an outstanding FIXME to make the format style customizable. Inspired by the include fixer, I added an new option `-style` to configure the fallback style in case no clang-format configuration file is found. The default remains "llvm".
Reviewers: Prazek, aaron.ballman, hokein, alexfh
Subscribers: cfe-commits, malcolm.parsons
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D27142
llvm-svn: 288258
Summary:
std::string::data() and std::string::c_str() are equivalent.
Enhance the readability-redundant-string-cstr check to also handle
calls to data().
Reviewers: etienneb, alexfh, aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D26279
llvm-svn: 285901
Summary:
As a unique_ptr or shared_ptr that has been moved from is guaranteed to be null,
we only warn if the pointer is dereferenced.
Reviewers: hokein, alexfh, aaron.ballman
Subscribers: Prazek, cfe-commits
Differential Revision: https://reviews.llvm.org/D26041
llvm-svn: 285842
Finds redundant variable and function declarations.
extern int X;
extern int X; // <- redundant
Differential Revision: https://reviews.llvm.org/D24656
llvm-svn: 285689
Summary:
Aaron modified cert-err58-cpp to include all exceptions thrown before main()
Update the check to match.
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D25925
llvm-svn: 285653
Summary:
Extend modernize-use-auto to cases when a variable is assigned with a cast.
e.g.
Type *Ptr1 = dynamic_cast<Type*>(Ptr2);
http://llvm.org/PR25499
Reviewers: angelgarcia, aaron.ballman, klimek, Prazek, alexfh
Subscribers: Prazek, Eugene.Zelenko, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D25316
llvm-svn: 285579
Summary: The check emits a warning if a member-initializer calls the member's default constructor with no arguments.
Reviewers: sbenza, alexfh, aaron.ballman
Subscribers: modocache, mgorny, Eugene.Zelenko, etienneb, Prazek, hokein, cfe-commits, beanz
Differential Revision: https://reviews.llvm.org/D24339
llvm-svn: 284742
Summary: This adds cert-err09-cpp alias for completeness, similar to cert-err61-cpp.
Reviewers: alexfh, hokein
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D25770
llvm-svn: 284596
Summary:
The check warns if an object is used after it has been moved, without an
intervening reinitialization.
See user-facing documentation for details.
Reviewers: sbenza, Prazek, alexfh
Subscribers: beanz, mgorny, shadeware, omtcyfz, Eugene.Zelenko, Prazek, fowles, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D23353
llvm-svn: 281453
This patch extends readability-container-size-empty check allowing it to produce
warnings not only for STL containers, but also for containers, which provide two
functions matching following signatures:
* `size_type size() const;`
* `bool empty() const;`
Where `size_type` can be any kind of integer type.
This functionality was proposed in https://llvm.org/bugs/show_bug.cgi?id=26823
by Eugene Zelenko.
Approval: alexfh
Reviewers: alexfh, aaron.ballman, Eugene.Zelenko
Subscribers: etienneb, Prazek, hokein, xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D24349
llvm-svn: 281307
Summary:
The check emits a warning if std::move() is applied to a forwarding reference, i.e. an rvalue reference of a function template argument type.
If a developer is unaware of the special rules for template argument deduction on forwarding references, it will seem reasonable to apply std::move() to the forwarding reference, in the same way that this would be done for a "normal" rvalue reference.
This has a consequence that is usually unwanted and possibly surprising: If the function that takes the forwarding reference as its parameter is called with an lvalue, that lvalue will be moved from (and hence placed into an indeterminate state) even though no std::move() was applied to the lvalue at the callsite.
As a fix, the check will suggest replacing the std::move() with a std::forward().
This patch requires D23004 to be submitted before it.
Reviewers: sbenza, aaron.ballman
Subscribers: klimek, etienneb, alexfh, aaron.ballman, Prazek, Eugene.Zelenko, mgehre, cfe-commits
Projects: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D22220
llvm-svn: 280077
Changed the extension check to include the option of ",h,hh,hpp,hxx" instead of just returning whether the file ended with ".h".
Differential revision: https://reviews.llvm.org/D20512
llvm-svn: 279803
James Dennett