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All rights reserved. File Converters. Select XSLT file to apply the transformation. Full version Have complicated XML files? If you have an XSLT file, you can add to to the app for the right transformation. Application Development. IT Management. Project Management. Resources Blog Articles. Menu Help Create Join Login. Home Browse Development Data Formats json-cpp. Get project updates , sponsored content from our select partners, and more.
Full Name. Phone Number. Job Title. Company Size Company Size: 1 - 25 26 - 99 - - 1, - 4, 5, - 9, 10, - 19, 20, or More. Get notifications on updates for this project. In fact, it satisfies the ReversibleContainer requirement. Note that in case of multimaps only one key is used in the JSON object and the value depends on the internal order of the STL container. Instead of using JSON Pointer see above to specify values to be manipulated, it describes the changes using a syntax that closely mimics the document being modified.
You can find more details about this recommendation here. Note that char types are not automatically converted to JSON strings, but to integer numbers. A conversion to a string must be specified explicitly:.
Usually, you would do something along those lines:. That's all! There are two macros to make your life easier as long as you 1 want to use a JSON object as serialization and 2 want to use the member variable names as object keys in that object:. This requires a bit more advanced technique. But first, let's see how this conversion mechanism works:. This serializer works fine when you have control over the type's namespace.
Hijacking the boost namespace is pretty bad, and it's illegal to add something other than template specializations to std There is a way, if your type is MoveConstructible.
You might want to take a look at unit-udt. Be very careful when reimplementing your serializer, you can stack overflow if you don't pay attention:. By default, enum values are serialized to JSON as integers. In some cases this could result in undesired behavior. If an enum is modified or re-ordered after data has been serialized to JSON, the later de-serialized JSON data may be undefined or a different enum value than was originally intended.
It is possible to more precisely specify how a given enum is mapped to and from JSON as shown below:. Just as in Arbitrary Type Conversions above,. Though JSON is a ubiquitous data format, it is not a very compact format suitable for data exchange, for instance over a network. Currently, the following compilers are known to work:. GCC 4. Don't use multiline raw strings directly in macros with this compiler. To fix this, add the following to your Application.
Note this is not an issue with the code, but rather with the compiler itself. On Android, see above to build with a newer environment. For MinGW, please refer to this site and this discussion for information on how to fix this bug.
Unsupported versions of GCC and Clang are rejected by error directives. Note that you can expect no support in this case. You need to add. Since CMake v3. It contains all the dataset used for the benchmarks. You might want to depend on a smaller repository. To allow your project to support either an externally supplied or an embedded JSON library, you can use a pattern akin to the following:. If you want the bleeding edge rather than the latest release, use brew install nlohmann-json --HEAD.
See nlohmann-json for more information. If you are using the Meson Build System , add this source tree as a meson subproject. You may also use the include. Please see the meson project for any issues regarding the packaging. The provided meson. In Meson, it is preferred to use the dependency object with a subproject fallback, rather than using the subproject directly. Please file issues here if you experience problems with the packages. If you are using Spack to manage your dependencies, you can use the nlohmann-json package.
Please see the spack project for any issues regarding the packaging. Please see the hunter project for any issues regarding the packaging. If you are using Buckaroo , you can install this library's module with buckaroo add github. Please file issues here. There is a demo repo here. If you are using vcpkg on your project for external dependencies, then you can install the nlohmann-json package with vcpkg install nlohmann-json and follow the then displayed descriptions.
Please see the vcpkg project for any issues regarding the packaging. If you are using NuGet , you can use the package nlohmann. Please check this extensive description on how to use the package.
Please files issues here. If you are using MacPorts , execute sudo port install nlohmann-json to install the nlohmann-json package. In your project's manifest file, just add depends: nlohmann-json probably with some version constraints. If you are not familiar with using dependencies in build2 , please read this introduction. Note you can change the branch ":develop" to an existing tag or another branch.
If you are using CPM.
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