forked from OSchip/llvm-project
4a00774e59
Summary: C++1z 6.4.1/p2: If the if statement is of the form if constexpr, the value of the condition shall be a contextually converted constant expression of type bool [...] C++1z 5.20/p4: [...] A contextually converted constant expression of type bool is an expression, contextually converted to bool (Clause4), where the converted expression is a constant expression and the conversion sequence contains only the conversions above. [...] Contextually converting result of an expression `e` to a Boolean value requires `bool t(e)` to be well-formed. An explicit conversion function is only considered as a user-defined conversion for direct-initialization, which is essentially what //contextually converted to bool// requires. Also, fixes PR28470. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D24158 llvm-svn: 280838 |
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| lib | ||
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| tools | ||
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| www | ||
| .arcconfig | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
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| 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/