etl/docs/strings/_index.md
John Wellbelove 4a88884b39
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---------

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>
2026-06-06 13:12:44 +01:00

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Markdown

---
title: "Strings"
weight: 100
---
## String
The library defines a set of string templates that have been specially tailored for embedded systems.
They have a maximum capacity fixed at compile time and make no calls to `malloc`/`free` or `new`/`delete`0.
They are completely deterministic.
The ETL provides `etl::string`, `etl::wstring`, `etl::u16string` and `etl::u32string`.
## String View
The ETL defines string view classes that provide a lost cost view into a string.
The ETL provides `etl::string_view`, `etl::wstring_view`, `etl::u16string_view` and `etl::u32string_view`.
## To String
The ETL defines a utility to create strings according to a format.
The ETL provides `etl::to_string`, `etl::to_wstring`, `etl::to_u16string` and `etl::to_u32string`.
## To Arithmetic
The ETL defines a utility to convert strings to values.
## String Stream
The ETL defines string stream classes that stream values into a string.
The ETL provides `etl::string_stream`, `etl::wstring_stream`, `etl::u16string_stream`, and `etl::u32string_stream`.
## String Utilities
The ETL provides a set of string to examine and manipulate strings.
## Format Specification
A class is defined to format the output of `etl::to_string`, `etl::to_wstring`, `etl::to_u16string`, and `etl::to_u32string`.
## Format
A C++20 style `etl::format`.
## Print
A C++23 style `etl::print`