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* Add ranges * Initial Hugo setup * Work in progress * Added selection for local or remote site * Updated to 'light' theme * Changed to using Hextra Hugo theme * Changed to using Hextra Hugo theme * Changed to Hextra Hugo theme * Change to Hextra Hugo theme * Updated Hugo setup. * Updated Hugo setup. # Conflicts: # docs/releases/_index.md * Work in progress * Added new fonts Added new documentation * Latest documentation updates * Latest documentation updates # Conflicts: # docs/containers/array.md # docs/containers/array_view.md # docs/containers/array_wrapper.md # docs/containers/bip_buffer_spsc_atomic.md # docs/containers/bitset.md # docs/containers/indirect_vector.md # docs/containers/vector.md # docs/getting-started/compilers.md * Added bloom_filter markdown doc * Added more documentation Updated CSS for light and dark modes * Fixed some menus Added mode documentation files * Updated CSS rules Added badges to home page Added uniqur_ptr + pool tutorial * Fixed formatting on the home page markdown Modified light amd dark code formatting * Updated unique_ptr-with-pool * Added container and shared message tutorials * Updates to documentation * Added const_multimap * Updated source-formatting.md * Added initial raw text files form Web site editor * Innore coverage build directory * Exported raw text documentation files from the web site editor * Hugo updates * Added Hugo intalation and markdown descriptions * More addition to the documentation * Added closure.md and updates to delegate.md * Added format.md * Added documentation for etl::delegate_observable, etl::function, Base64 codec * Added io_port documentation * Added basic_format_spec * Added documentation for string_stream and string utilities. * Added more documentation Updated the documentation CSS * Added documentation for clocks, day, duration * Added more documentation for chrono classes Updated callouts * More chrono documentation * Completed chrono documentation * Maths functions documentation * Completed maths documentation * Completed maths documentation * Completed maths documentation * Completed maths documentation * Added multiple documentation files * Added iterator.md * Added debug_count.md and versions.md * Added debug_count.md and versions.md * Added more documentation * More documentation * Added some design pattern documentation Modified some of the layout files Modified the About documentation * Converted more documentation pages Modified the site CSS * Added more documentation Moced some documentation files to new directories * Added more documentation Tweaks to CSS * Added callback_timer_deferred_locked documentation * Added callback_timer_locked documentation * More documentation updates * More documentation updates * More documentation updates * New documentation files. Harmonised file name format * New documentation files. * Multiple document updates * Multiple document updates * Final conversion of web pages * Updates before PR * Updates before PR * Updates before PR # Conflicts: # docs/blog/_index.md * Final pre PR updates * Updates to message framework documentation * Renamed directory * Fix spelling * Added author and date to blog files Moved documentation files merged from development * Fixed 'Description' typo * Fix typos # Conflicts: # docs/IO/io_port.md # docs/containers/sets/const-multiset.md # docs/containers/sets/const-set.md # docs/maths/correlation.md # docs/maths/gamma.md * Renamed two files to lower case * Minor renaming * Added author and date * Updated callout on bresenham_line.md Added support for showing the ETL version on the documentation first page, by copying the version.txt file as a hugo asset. Updated the Python 'update_release.py' to copy 'version.txt' * Replace space in filename with hyphen. Added more information to hugo-commands.md * Replace space in filename with hyphen. Added more information to hugo-commands.md # Conflicts: # docs/getting-started/view-the-docs-locally/hugo-commands.md * Added a link to pseudo_moving_average.md * Updated title pages for groups * Fixed missing 404 for non-existent pages * Fixed coordinate variable names in the 'Calculating the intersection' example --------- Co-authored-by: Roland Reichwein <Roland.Reichwein@bmw.de> Co-authored-by: John Wellbelove <john.wellbelove@etlcpp.com> Co-authored-by: John Wellbelove <john.wellbelove@etlcpp.co.uk>
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| result |
{{< callout type="info">}}
Header: result.h
From: 20.17.0
Similar to: std::expected
{{< /callout >}}
{{< callout type="warning">}}
This class is deprecated.
Use etl::expected as a replacement.
{{< /callout >}}
A generic result type for returning either a result or an error. Deprecated. Use etl::expected
result
template <typename TValue, typename TError>
class result
template <typename TError>
class result<void, TError>
Description
Specialisation for void result.
result() = delete;
Description
Cannot be default constructed.
result(const result& other)
Description
Copy constructor.
result(result&& other)
Description
Move constructor.
result(const TValue& value)
Description
Construct from a value.
Not valid for void specialisation.
result(TValue&& value)
Description
Move construct from a value.
Not valid for void specialisation.
result(const TError& err)
Description
Construct from error.
result(TError&& err)
Description
Move construct from error.
result& operator =(const result& other)
Description
Copy assign.
result& operator =(result&& other)
Description
Move assign.
result& operator =(const TValue& value)
Description
Copy assign from value.
Not valid for void specialisation.
result& operator =(TValue&& value)
Description
Move assign from value.
Not valid for void specialisation.
result& operator =(const TError& err)
Description
Copy assign from error.
result& operator =(TError&& err)
Description
Move assign from error.
bool is_value() const
Description
true if result contains a value.
bool is_error() const
Description
true if result contains an error.
const TValue& value() const
Description
Returns a const reference to the value.
Undefined if the result does not contain an value.
Not valid for void specialisation.
TValue&& value()
Description
Returns an rvalue reference to the value.
Undefined if the result does not contain an value.
Not valid for void specialisation.
const TError& error() const
Description
Returns a const reference to the error.
Undefined if the result does not contain an error.
TError&& error()
Description
Returns an rvalue reference to the error.
Undefined if the result does not contain an error.