In this library the following types implement containers used to represent JSON data in memory:
Table 1.1. Container Types
A sequence container of JSON values supporting dynamic size and fast,
random access. The interface and performance characteristics are
An associative container of key-value pairs with unique keys, where the key is a string and the mapped type is a JSON value. Search, insertion, and removal have average contant-time complexity. In addition, elements are stored contiguously in memory allowing cache-friendly iteration.
A contiguous range of characters. The library assumes that the contents of the string holds only valid UTF-8.
A special variant which can hold one of any of the six standard JSON data types.
These containers are explored in-depth in the sections that follow.
Sample code and identifiers used throughout are written as if the following declarations are in effect:
#include <boost/json.hpp> using namespace boost::json;