NLOHMANN_JSON_NAMESPACE_BEGIN, NLOHMANN_JSON_NAMESPACE_END

#define NLOHMANN_JSON_NAMESPACE_BEGIN  // (1)
#define NLOHMANN_JSON_NAMESPACE_END    // (2)

These macros can be used to open and close the nlohmann namespace. They include an inline namespace used to differentiate symbols when linking multiple versions (including different ABI-affecting macros) of this library.

1. Opens the namespace.

   namespace nlohmann
   {
   inline namespace json_v3_11_0
   {
   

2. Closes the namespace.

   }  // namespace nlohmann
   }  // json_v3_11_0
   

Default definition

The default definitions open and close the nlohmann as well as an inline namespace.

When these macros are not defined, the library will define them to their default definitions.

See also

• NLOHMANN_JSON_NAMESPACE

Version history

• Added in version 3.11.0.