3. Strings¶ String manipulation, formatting, encoding, and temporary string utilities. 3.1. String manipulation library 3.2. Boost package for string manipulation library 3.3. Soft-failing string-to-numeric conversions returning Result<T; ConversionError> 3.4. Temporary string utilities 3.5. UTF-8 utilities 3.6. Base64 encoding and decoding 3.7. Long string embedding macro