Format specifiers for built-in and string types.

A type-erased reference to an std::locale to avoid a heavy <locale> include.

Windows error */

@brief exception indicating access out of the defined range @sa https://json.nlohmann.me/api/basic_json/out_of_range/

A non-owning nullable reference to a socket. The reference is invalidated on socket close or destruction.

Async msg to move to/from the queue Movable only. should never be copied

@brief general exception of the @ref basic_json class @sa https://json.nlohmann.me/api/basic_json/exception/

! Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at beginning of input. Does not support changing the underlying std::streambuf

An argument visitor that returns true iff arg is a zero integer.

@brief an iterator for primitive JSON types This class models an iterator for primitive JSON types (boolean, number, string). It's only purpose is to

Checks if an argument is a valid printf width specifier and sets left alignment if it is negative.

A converter from UTF-8 to UTF-16.