mirror of
https://github.com/ETLCPP/etl.git
synced 2026-06-15 16:36:03 +08:00
4a88884b39
* 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>
3.3 KiB
3.3 KiB
| title |
|---|
| to_string |
{{< callout type="info">}}
Header: to_string.h
{{< /callout >}}
Functions that will render a text representation of bools, integrals, floating point, strings, string views and pointers.
Uses etl::basic_format_spec to define the required formatting.
It will convert to any of the ETL string types.
Default format specification
Where StringType is etl::istring, etl::iwstring, etl::iu8string, etl::iu16string or etl::iu32string.
template <typename T>
const StringType& to_string(const T value,
StringType& str,
const bool append = false)
template <typename T> // Where T is an integral
const StringType& to_string(const T value,
uint32_t denominator_exponent,
StringType& str,
const bool append = false)
value The value to convert to a string.
str The string in with to place the rendered text.
append If true then appends the text to the current string's content. Default false.
From: 20.17.0
Supplied format specification
Where StringType is etl::istring, etl::iwstring, etl::iu8string, etl::iu16string or etl::iu32string.
Where FormatType is etl::format_spec, etl::wformat_spec, etl::u8format_spec, etl::u16format_spec or etl::u32format_spec
template <typename T>
const StringType& to_string(const T value,
StringType& str,
const FormatType& format,
const bool append = false)
template <typename T>
const StringType& to_string(const T value,
uint32_t denominator_exponent,
StringType& str,
const FormatType& format,
const bool append = false)
value The value to convert to a string.
denominator_exponent The exponent of the value that is used to divide the value.
str The string in with to place the rendered text.
format The format specification.
append If true then appends the text to the current string's content. Default false.
From: 20.17.0
Examples
Format as a hex character, minimum fill width of 8, fill with zeros
etl::format_spec format;
// Format as a hex character, minimum fill width of 8, fill with zeros.
format.hex().width(8).fill('0');
etl::string<8> text;
// 'text' is set to "00123456"
etl::to_string(1193046, text, format);
---
Format minimum fill width of 8, fill with space and three decimal digits
etl::format_spec format;
// Format minimum fill width of 8, fill with space and three decimal digits.
format.width(8).fill(' ').precision(3);
etl::string<8> text;
// 'text' is set to " 3.142"
etl::to_string(3.1415, text, format);
---
Format a floating point number
etl::string<19> text = "The result is ";
etl::to_string(3.1415, text, etl::format_spec().precision(3), true);
// 'text' is set to "The result is 3.142"
---
Format an integral number and divide by 10000
etl::string<19> text = "The result is ";
etl::to_string(31415, 4U, text, etl::format_spec().precision(3), true);
// 'text' is set to "The result is 3.142"