3 Commits

Author	SHA1	Message	Date
Po-yao Chang	08fe7df600	[libc++][format] Don't treat a closing '}' as part of format-spec (#81305) ... This allows: ``` std::println("{}>42", std:🧵:id{}); std::println("{}>42", std::span<int>{}); std::println("{}>42", std::pair{42, "Hello"sv}); std::println("{:}>42", std:🧵:id{}); std::println("{:}>42", std::span<int>{}); std::println("{:}>42", std::pair{42, "Hello"sv}); ``` to compile and run.	2024-02-16 02:41:07 +08:00
Mark de Wever	402eb2ef09	[libc++][format] Improves diagnostics. ... Improves both the compile-time and run-time errors. At compile-time it does a bit more work to get more specific errors. This could be done at run-time too, but that has a performance penalty. Since it's expected most use-cases use format* instead of vformat* the compile-time errors are more common. For example when using std::format_to("{:-c}", 42); Before compile output would contain std::__throw_format_error("The format-spec should consume the input or end with a '}'"); Now it contains std::__throw_format_error("The format specifier does not allow the sign option"); Given a better indication the sign option is not allowed. Note the output is still not user-friendly; C++ doesn't have good facilities to generate nice messages from the library. In general all messages have been reviewed and improved, using a more consistent style and using less terms used in the standard. For example format-spec -> format specifier arg-id -> argument index Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D152624	2023-07-18 21:11:12 +02:00
Mark de Wever	88622aabf1	[libc++][format] Implements formatter thread::id. ... Since stacktrace header is WIP and it's not sure that will be done before LLVM17 update the documentation. When the header is implemented implementing the formatter is trivial, so that can be done quickly afterwards. Implements parts of: - P2693R1 Formatting thread::id and stacktrace Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D144331	2023-04-08 16:39:34 +02:00