[PATCH] Improve API docs for <system_error> header

[Daniel Krügler]

Am Sa., 4. Mai 2019 um 16:37 Uhr schrieb Jonathan Wakely <jwakely@redhat.com>:
>
>         * include/std/system_error (error_category, error_code)
>         (error_condition): Improve docs.
>         * libsupc++/exception: Add missing @addtogroup Doxygen command.
>         * libsupc++/exception_ptr.h (exception_ptr): Link equality operators
>         to class documentation. Suppress documentation for implementation
>         details.
>         * libsupc++/nested_exception.h (throw_with_nested, rethrow_if_nested):
>         Suppress documentation for implementation details.
>
> Committed to trunk.

The new docs for error_category say now:

"An error category defines a context that give meaning to the integer
* stored in an `error_code` or `error_category` object."

The last "or `error_category`" looks misleading to me, did you mean
"or `error_condition`" instead?

- Daniel