nlohmann::basic_json - renxiaobo27/json GitHub Wiki

Defined in header json.hpp

template <
    class ObjectType = std::map,
    class ArrayType = std::vector,
    class StringType = std::string,
    class BooleanType = bool,
    class NumberIntegerType = int64_t,
    class NumberFloatType = double,
    class AllocatorType = std::allocator
> class basic_json;

• ObjectType - container type used for JSON objects
• ArrayType - container type used for JSON arrays
• StringType - container type used for JSON strings
• BooleanType - type used for JSON boolean
• NumberIntegerType - type used for JSON numbers (integers)
• NumberFloatType - type used for JSON numbers (floating point)
• AllocatorType - Allocator type used to allocate internal storage

Note the type json is a typedef for the class basic_json with its default types, resulting in the following typedefs:

• (constructor)
  constructs the container
• (destructor)
  destructs the container
• operator=
  assigns values to the container
• get_allocator
  returns the associated allocator

• (implicit value conversion)
• get
  explicit value conversion
• type
• is_null
  whether value is null
• is_boolean
  whether value is boolean
• is_number
  whether value is number
• is_object
  whether value is object
• is_array
  whether value is array
• is_string
  whether value is string

• operator[]
  access specific element
• at
  access specific element with bound checking
• front
  access the first element
• back
  access the last element

• begin, cbegin
  returns an iterator to the beginning
• end, cend
  returns an iterator to the end
• rbegin, crbegin
  returns a reverse iterator to the beginning
• rend, crend
  returns a reverse iterator to the end

• empty
  checks whether the container is empty
• size
  returns the number of elements
• max_size
  returns the maximum possible number of elements

• erase
  erases elements
• clear
  clears the contents
• push_back
• operator+=
• swap

• find
• count

• dump
• parse

• operator==, operator!=, operator<, operator<=, operator>, operator>=
• std::swap
• std::hash

• operator<<, operator>>
• operator"" _json