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* Add key_compare member to ordered_map * Replace == with key_compare in ordered_map * Expose the actual comparison function used by object_t nlohmann::ordered_map uses a different comparison function than the one provided via template parameter. * Introduce a type trait to detect if object_t has a key_compare member. * Rename object_comparator_t to default_object_comparator_t. * Add object_comparator_t to be conditionally defined as object_t::key_compare, if available, or default_object_comparator_t otherwise. * Update the documentation accordingly. Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com> * Add type traits to check if a type is usable as object key Add type trait to check: * if a type is a specialization of a template. * if a type is a json_pointer. * if a type is a basic_json::{const_,}iterator. * if two types are comparable using a given comparison functor. * if a type is comparable to basic_json::object_t::key_type. * if a type has a member type is_transparent. * if a type is usable as object key. * if a type has an erase() function accepting a given KeyType. Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com> * Rework basic_json element access to accept more key types Rework basic_json element access member functions and operators to accept any type that meets the requirements defined by type trait detail::is_usable_as_key_type. Member functions and operators: * at() * operator[] * value() * erase() * find() * count() * contains() Update documentation to reflect these changes. Add unit tests to excercise the new functions using std::string_view. Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com> Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com> |
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README.md |
Documentation
Generate documentation
Note on documentation: The source files contain links to the online documentation at https://json.nlohmann.me. This URL contains the most recent documentation and should also be applicable to previous versions; documentation for deprecated functions is not removed, but marked deprecated.
If you want to see the documentation for a specific tag or commit hash, you can generate it as follows (here for tag
v3.10.2
):
git clone https://github.com/nlohmann/json.git
cd json
git checkout v3.10.2
make install_venv serve -C doc/mkdocs
Open URL http://127.0.0.1:8000/ in your browser. Replace from any URL from the source code https://json.nlohmann.me
with http://127.0.0.1:8000
to see the documentation for your tag or commit hash.