Release 0.143.1

Bug fix:

• v0.143.1 fixs a bug in the jsonpath filter < comparison operator that was introduced in v0.143.0

Enhancements:

• j.as<int>(), j.as<uint64_t>() etc. supported for binary, octal and hex string values,
  in addition to decimal string values.

• Includes json_type_traits specialization for integer keyed maps, with conversion
  to/from string keys in a basic_json.

• The json_type_traits specializations for type T generated by the convenience macros now include a specialization of
  is_json_type_traits_declared<T> with member constant value equal true.

• New basic_json member function json_type type()

• New basic_json member function get_value_or that gets a value as type T if available,
  or a default value if not:

  template <class T,class U>
  T get_value_or(const string_view_type& name, U&& default_value) const;

get_value_or is the preferred alternative to

template<class T>
T get_with_default(const string_view_type& name, const T& default_value) const

Note that get_value_or requires that the first template parameter T be specified explicitly (unlike get_with_default)

Changes:

• The basic_json get_with_default(name) function, which returned a const reference
  to the value if available and to a json null constant if not,
  has been deprecated and renamed to at_or_null(name). Rationale: get_with_default(name)
  is more like at(name) (both return a const reference) than
  get_with_default(name,default_value) (which returns a value.)

• The tag type bstr_arg_t has been renamed to byte_string_arg_t, and the constant
  bstr_arg to byte_string_arg.

• The cbor_content_handler public member functions typed_array() and private virtual functions
  do_typed_array() have been moved to basic_json_content_handler. The do_typed_array()
  private virtual functions have been given default implementations. cbor_content_handler
  has been deprecated.

• Replaced Martin Moene's span-lite with simpler implementation until std::span is available
  (primarily for typed array interface.)

Release 0.142.0

Defect fixes:

• Fixed csv documentation showing the wrong header file includes
• Fixed jsonpath issue json_query() is reordering arrays
• Fixed jsonpath issue with recursive descent reported in
  Alignment on JSONPath implementations across languages

Release 0.141.0

Name change:

• The names JSONCONS_ALL_PROPERTY_TRAITS_DECL, JSONCONS_N_PROPERTY_TRAITS_DECL,
  JSONCONS_TPL_ALL_PROPERTY_TRAITS_DECL and JSONCONS_N_PROPERTY_TRAITS_DECL
  have been deprecated and renamed to JSONCONS_ALL_GETTER_SETTER_TRAITS_DECL,
  JSONCONS_N_GETTER_SETTER_TRAITS_DECL,JSONCONS_TPL_ALL_GETTER_SETTER_TRAITS_DECL
  and JSONCONS_TPL_N_GETTER_SETTER_TRAITS_DECL. Rationale: naming consistency.

Enhancements:

• New tag types json_object_arg_t, json_array_arg_t and bstr_arg_t
  have been introduced that make it simpler to construct basic_json values
  of objects, arrays and byte strings.

Release 0.140.0

Changes to the json_type_traits convenience macros:

• In Issue 190, Twan Springeling
  raised an issue with the macro JSONCONS_GETTER_CTOR_TRAITS_DECL, that it did not come
  with "strict" and "non-strict" versions. In this release we introduce new macros, where
  _N_ is mnemonic for the number of mandatory properties provided (possibly zero), and ALL is
  mnemonic for all properties are mandatory:

JSONCONS_N_GETTER_CTOR_TRAITS_DECL(class_name,num_mandatory_params,
                                   getter_name0,
                                   getter_name1,...) // (11)

JSONCONS_ALL_GETTER_CTOR_TRAITS_DECL(class_name,
                                     getter_name0,getter_name1,...) // (12)

JSONCONS_TPL_N_GETTER_CTOR_TRAITS_DECL(num_template_params,
                                       class_name,num_mandatory_params,
                                       getter_name0,getter_name1,...) // (13)

JSONCONS_TPL_ALL_GETTER_CTOR_TRAITS_DECL(num_template_params,
                                         class_name,
                                         getter_name0,getter_name1,...) // (14)

JSONCONS_N_GETTER_CTOR_NAMED_TRAITS_DECL(class_name,num_mandatory_params,
                                         (getter_name0,"name0"),
                                         (getter_name1,"name1")...) // (15)

JSONCONS_ALL_GETTER_CTOR_NAMED_TRAITS_DECL(class_name,
                                          (getter_name0,"name0"),
                                          (getter_name1,"name1")...) // (16)

JSONCONS_TPL_N_GETTER_CTOR_NAMED_TRAITS_DECL(num_template_params,
                                             class_name,num_mandatory_params,
                                             (getter_name0,"name0"),
                                             (getter_name1,"name1")...) // (17)

JSONCONS_TPL_ALL_GETTER_CTOR_NAMED_TRAITS_DECL(num_template_params,
                                               class_name,
                                               (getter_name0,"name0"),
                                               (getter_name1,"name1")...) // (18)

• When the traits generated by e.g. JSONCONS_N_GETTER_CTOR_TRAITS_DECL need to pass an argument to a
  constructor that is not present in the JSON, they pass a default constructed parameter value.
  The legacy macros e.g. JSONCONS_GETTER_CTOR_TRAITS_DECL remain, and have the same meaning as before, but are deprecated.

• With the introduction of the JSONCONS_POLYMORPHIC_TRAITS_DECL macro,
  and the support for polymorhic types, there comes a problem with the "non-strict" macros
  JSONCONS_MEMBER_TRAITS_DECL, JSONCONS_PROPERTY_TRAITS_DECL, JSONCONS_SETTER_GETTER_TRAITS_DECL, etc.,
  when a class has non-mandatory properties. Type selection is based on the presence of properties,
  but the json_type_traits generated by the non-strict macros don't know which properties are mandatory
  and which non-mandatory, hence type selection becomes impossible when members are absent in
  the JSON. For this reason, twelve new _N_ macros have been introduced to allow you to specify which properties
  are mandatory (_N_ is mnemonic for number of mandatory properties):

JSONCONS_N_MEMBER_TRAITS_DECL(class_name,num_mandatory_params,
                              member_name0,member_name1,...)

JSONCONS_TPL_N_MEMBER_TRAITS_DECL(num_template_params,
                                  class_name,num_mandatory_params,
                                  member_name0,member_name1,...)

JSONCONS_N_MEMBER_NAMED_TRAITS_DECL(class_name,num_mandatory_params,
                                    (member_name0,"name0"),
                                    (member_name1,"name1")...)

JSONCONS_TPL_N_MEMBER_NAMED_TRAITS_DECL(num_template_params,
                                        class_name,num_mandatory_params,
                                        (member_name0,"name0"),
                                        (member_name1,"name1")...)

JSONCONS_N_GETTER_CTOR_TRAITS_DECL(class_name,num_mandatory_params,
                                   getter_name0,
                                   getter_name1,...)

JSONCONS_TPL_N_GETTER_CTOR_TRAITS_DECL(num_template_params,
                                       class_name,num_mandatory_params,
                                       getter_name0,getter_name1,...)

JSONCONS_N_GETTER_CTOR_NAMED_TRAITS_DECL(class_name,num_mandatory_params,
                                         (getter_name0,"name0"),
                                         (getter_name1,"name1")...)

JSONCONS_TPL_N_GETTER_CTOR_NAMED_TRAITS_DECL(num_template_params,
                                             class_name,num_mandatory_params,
                                             (getter_name0,"name0"),
                                             (getter_name1,"name1")...)

JSONCONS_N_PROPERTY_TRAITS_DECL(class_name,get_prefix,set_prefix,num_mandatory_params,
                                property_name0,property_name1,...)

JSONCONS_TPL_N_PROPERTY_TRAITS_DECL(num_template_params,
                                    class_name,get_prefix,set_prefix,num_mandatory_params,
                                    property_name0,property_name1,...)

JSONCONS_N_GETTER_SETTER_NAMED_TRAITS_DECL(class_name,num_mandatory_params,
                                          (getter_name0,setter_name0,"name0"),
                                          (getter_name1,setter_name1,"name1")...)

JSONCONS_TPL_N_GETTER_SETTER_NAMED_TRAITS_DECL(num_template_params,
                                               class_name,num_mandatory_params,
                                               (getter_name0,setter_name0,"name0"),
                                               (getter_name1,setter_name1,"name1")...)

• The legacy non-strict macros remain, and have the same meaning as before, but are deprecated.

• For consistency with the new naming, and to allow the legacy JSONCONS_GETTER_CTOR_TRAITS_DECL to
  keep the same meaning for backwards compatibility, the _STRICT_ names are deprecated
  and renamed substituting _ALL_ for STRICT.

See json_type_traits
for complete documentation of the convenience macros.

Release 0.139.0

Enhancements:

• New convenience macro for generating json_type_traits from getter and setter functions
  that will serialize to the stringified property names,

JSONCONS_PROPERTY_TRAITS_DECL(class_name,get_prefix,set_prefix,
                              property_name0,property_name1,...) 

JSONCONS_STRICT_PROPERTY_TRAITS_DECL(class_name,get_prefix,set_prefix,
                                     property_name0,property_name1,...) 

JSONCONS_TPL_PROPERTY_TRAITS_DECL(num_template_params,
                                  class_name,get_prefix,set_prefix,
                                  property_name0,property_name1,...)   

JSONCONS_TPL_STRICT_PROPERTY_TRAITS_DECL(num_template_params,
                                         class_name,get_prefix,set_prefix,
                                         property_name0,property_name1,...) 

Release 0.138.0

Defect fix:

• Fixes issue in csv_parser parsing a CSV file with mapping_kind::m_columns,
  when parsing a quoted string containing a numeric value, processing it as a
  number rather than as a string.

Changes:

• It is no longer neccessay to place a semicolon after JSONCONS_TYPE_TRAITS_FRIEND

Enhancements:

• New convenience macro to master for generating json_type_traits for polymorphic types,
  based on the presence of properties,

JSONCONS_POLYMORPHIC_TRAITS_DECL(base_class_name,derived_class_name0,derived_class_name1,...) 

• The convenience macros JSONCONS_MEMBER_TRAITS_DECL, JSONCONS_STRICT_MEMBER_TRAITS_DECL,
  JSONCONS_TPL_MEMBER_TRAITS_DECL, JSONCONS_TPL_STRICT_MEMBER_TRAITS_DECL,
  JSONCONS_MEMBER_TRAITS_NAMED_DECL, JSONCONS_STRICT_MEMBER_TRAITS_NAMED_DECL,
  JSONCONS_TPL_MEMBER_TRAITS_NAMED_DECL, and JSONCONS_TPL_STRICT_MEMBER_TRAITS_NAMED_DECL
  now allow you to have const or static const data members that are serialized.

• basic_csv_encoder now supports json values that map to multi-valued fields and
  json objects where each member is a name-array pair.

• basic_csv_parser and basic_csv_encoder now support nan, infinity,
  and minus infinity substitution

Deprecated basic_csv_options functions removed:

• basic_csv_options& column_names(const std::vector<string_type>&)
• basic_csv_options& column_defaults(const std::vector<string_type>& value)
• column_types(const std::vector<string_type>& value)
  (Instead, use the versions that take comma-delimited strings)

Release 0.137.0

Defect fixes:

• Fixes GCC 9.2 warning: ‘class jsoncons::json_exception’
  has virtual functions and accessible non-virtual destructor,
  contributed by KonstantinPlotnikov.

Enhancements:

• Includes Martin Moene's span-lite to support a C++20-like span in the jsoncons namespace.

• Includes enhancements to the CBOR encode and decode classes and functions to support the
  CBOR extension Tags for Typed Arrays.
  The implementation uses the span class.

Changes:

• The json_options parameter to precision() has been changed from int to int8_t

• The json_options parameter to indent_size() has been changed from size_t to uint8_t

• The csv_options parameter to precision() has been changed from int to int8_t

• The CSV extension enum name quote_style_type has been deprecated and renamed to quote_style_kind.

• The CSV extension enum name mapping_type has been deprecated and renamed to mapping_kind.

• The do_ virtual functions in basic_json_content_handler have been augmented with a std::error_code
  output parameter, e.g.

  virtual bool do_begin_object(semantic_tag tag, const ser_context& context, std::error_code& ec) = 0;

Release 0.136.1

v0.136.1

Bug fixes:

• This version fixes a defect in the erase functions for
  the order preserving basic_json specializations, in
  particular, for ojson (issue 188.)

Release 0.136.0

For consistency with other names, the names of the convenience macros below
for classes with templates and JSON with given names have been deprecated.

JSONCONS_MEMBER_TRAITS_NAMED_DECL
JSONCONS_STRICT_MEMBER_TRAITS_NAMED_DECL
JSONCONS_TEMPLATE_MEMBER_TRAITS_DECL
JSONCONS_STRICT_TEMPLATE_MEMBER_TRAITS_DECL
JSONCONS_TEMPLATE_MEMBER_TRAITS_NAMED_DECL
JSONCONS_STRICT_TEMPLATE_MEMBER_TRAITS_NAMED_DECL
JSONCONS_ENUM_TRAITS_NAMED_DECL
JSONCONS_GETTER_CTOR_TRAITS_NAMED_DECL
JSONCONS_TEMPLATE_GETTER_CTOR_TRAITS_DECL
JSONCONS_TEMPLATE_GETTER_CTOR_TRAITS_NAMED_DECL
JSONCONS_GETTER_SETTER_TRAITS_NAMED_DECL
JSONCONS_STRICT_GETTER_SETTER_TRAITS_NAMED_DECL
JSONCONS_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL
JSONCONS_STRICT_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL

They have been renamed to

JSONCONS_MEMBER_NAMED_TRAITS_DECL
JSONCONS_STRICT_MEMBER_NAMED_TRAITS_DECL
JSONCONS_TPL_MEMBER_TRAITS_DECL
JSONCONS_STRICT_TPL_MEMBER_TRAITS_DECL
JSONCONS_TPL_MEMBER_NAMED_TRAITS_DECL
JSONCONS_STRICT_TPL_MEMBER_NAMED_TRAITS_DECL
JSONCONS_ENUM_NAMED_TRAITS_DECL
JSONCONS_GETTER_CTOR_NAMED_TRAITS_DECL
JSONCONS_TPL_GETTER_CTOR_TRAITS_DECL
JSONCONS_TPL_GETTER_CTOR_NAMED_TRAITS_DECL
JSONCONS_GETTER_SETTER_NAMED_TRAITS_DECL
JSONCONS_STRICT_GETTER_SETTER_NAMED_TRAITS_DECL
JSONCONS_TPL_GETTER_SETTER_NAMED_TRAITS_DECL
JSONCONS_STRICT_TPL_GETTER_SETTER_NAMED_TRAITS_DECL

See json_type_traits

Release 0.135.0

New macros that generate the code to specialize json_type_traits from the getter and setter functions
and serialize to given names:

• JSONCONS_GETTER_SETTER_TRAITS_NAMED_DECL(class_name,(getter_name0,setter_name0,"name0"),(getter_name1,setter_name1,"name1")...)

• JSONCONS_STRICT_GETTER_SETTER_TRAITS_NAMED_DECL(class_name,(getter_name0,setter_name0,"name0"),(getter_name1,setter_name1,"name1")...)

• JSONCONS_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL(num_template_params,class_name,(getter_name0,setter_name0,"name0"),(getter_name1,setter_name1,"name1")...)

• JSONCONS_STRICT_TEMPLATE_GETTER_SETTER_TRAITS_NAMED_DECL(num_template_params,class_name,(getter_name0,setter_name0,"name0"),(getter_name1,setter_name1,"name1")...)

Support for disabling exceptions

• Support compilation with exceptions disabled