The following preprocessor macros can be used to perform various checks based on the version of the

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1.30.4                                            Jun 08, 2025                                   BSON_VERSION(3)

       The  following  preprocessor  macros  can  be  used to perform various checks based on the version of the
       library you are compiling against. This may be useful if you only want to enable a feature on  a  certain
       version of the library.

          #define BSON_CHECK_VERSION(major, minor, micro)

          #define BSON_MAJOR_VERSION (1)
          #define BSON_MINOR_VERSION (4)
          #define BSON_MICRO_VERSION (1)
          #define BSON_VERSION_S "1.4.1"

          #define BSON_VERSION_HEX                                  \
             (BSON_MAJOR_VERSION << 24 | BSON_MINOR_VERSION << 16 | \
              BSON_MICRO_VERSION << 8)

       Only compile a block on Libbson 1.1.0 and newer.

          #if BSON_CHECK_VERSION(1, 1, 0)
          static void
          do_something (void)
          {
          }
          #endif