SYNOPSIS

          void
          bson_copy_to_excluding_noinit (const bson_t *src,
                                         bson_t *dst,
                                         const char *first_exclude,
                                         ...);

PARAMETERS

       • src: A bson_t <>.

       • dst: A bson_t <>.

       • first_exclude: The first field name to exclude.

DESCRIPTION

       The  bson_copy_to_excluding_noinit()  <>  function  shall  copy  all  fields from src to dst except those
       specified by the variadic, NULL terminated list of keys starting from first_exclude.

       Does not call bson_init() <> on dst.

       Warning:
          This is generally not needed except in very special situations.

EXAMPLE

          #include <bson/bson.h>

          int main ()
          {
             bson_t bson;
             bson_t bson2;
             char *str;

             bson_init (&bson);
             bson_append_int32 (&bson, "a", 1, 1);
             bson_append_int32 (&bson, "b", 1, 2);
             bson_append_int32 (&bson, "c", 1, 2);

             bson_init (&bson2);
             bson_copy_to_excluding_noinit (&bson, &bson2, "b", NULL);

             str = bson_as_relaxed_extended_json (&bson2, NULL);
             /* Prints
              * { "a" : 1, "c" : 2 }
              */
             printf ("%s\n", str);
             bson_free (str);

             bson_destroy (&bson);
             bson_destroy (&bson2);
          }

Author

       MongoDB, Inc

Copyright

       2009-present, MongoDB, Inc.

2.2.1                                             Dec 11, 2025                  BSON_COPY_TO_EXCLUDING_NOINIT(3)