Formatting for exceptions exists (e.g. via #3062 or #3076).
This is not documented (missing in the list at
|
<a id="std-api"></a> |
|
## Standard Library Types Formatting |
|
|
|
`fmt/std.h` provides formatters for: |
|
|
|
- [`std::atomic`](https://en.cppreference.com/w/cpp/atomic/atomic) |
|
- [`std::atomic_flag`](https://en.cppreference.com/w/cpp/atomic/atomic_flag) |
|
- [`std::bitset`](https://en.cppreference.com/w/cpp/utility/bitset) |
|
- [`std::error_code`](https://en.cppreference.com/w/cpp/error/error_code) |
|
- [`std::filesystem::path`](https://en.cppreference.com/w/cpp/filesystem/path) |
|
- [`std::monostate`](https://en.cppreference.com/w/cpp/utility/variant/monostate) |
|
- [`std::optional`](https://en.cppreference.com/w/cpp/utility/optional) |
|
- [`std::source_location`](https://en.cppreference.com/w/cpp/utility/source_location) |
|
- [`std::thread::id`](https://en.cppreference.com/w/cpp/thread/thread/id) |
|
- [`std::variant`](https://en.cppreference.com/w/cpp/utility/variant/variant) |
).
Additionally, there seem to be different ways to format exceptions (without any specified and with {:t}), as can be seen from the tests:
|
try { |
|
using namespace my_ns1::my_ns2; |
|
throw my_exception("My Exception"); |
|
} catch (const std::exception& ex) { |
|
EXPECT_EQ("my_ns1::my_ns2::my_exception: My Exception", |
|
fmt::format("{:t}", ex)); |
|
EXPECT_EQ("My Exception", fmt::format("{:}", ex)); |
|
} |
This is undocumented in https://github.com/fmtlib/fmt/blob/cc2ba8f9ede4e5ae3262f43f3e4d07a22a9acdfc/doc/syntax.md. The only reference in the docs to t is A horizontal-tab character. for chrono
