1BSON_COPY_TO_EXCLUDING_NOINIT(3)    libbson   BSON_COPY_TO_EXCLUDING_NOINIT(3)
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NAME

6       bson_copy_to_excluding_noinit - bson_copy_to_excluding_noinit()
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SYNOPSIS

9          void
10          bson_copy_to_excluding_noinit (const bson_t *src,
11                                         bson_t *dst,
12                                         const char *first_exclude,
13                                         ...) BSON_GNUC_NULL_TERMINATED;
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PARAMETERS

16       • src: A bson_t.
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18       • dst: A bson_t.
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20       • first_exclude: The first field name to exclude.
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DESCRIPTION

23       The bson_copy_to_excluding_noinit() function shall copy all fields from
24       src to dst except those specified by the variadic, NULL terminated list
25       of   keys   starting   from  first_exclude.   Works  the  same  way  as
26       bson_copy_to_excluding, except does not call bson_init  on  dst.   This
27       function should be preferred in new code over bson_copy_to_excluding.
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29       WARNING:
30          This is generally not needed except in very special situations.
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EXAMPLE

33          #include <bson/bson.h>
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35          int main ()
36          {
37             bson_t bson;
38             bson_t bson2;
39             char *str;
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41             bson_init (&bson);
42             bson_append_int32 (&bson, "a", 1, 1);
43             bson_append_int32 (&bson, "b", 1, 2);
44             bson_append_int32 (&bson, "c", 1, 2);
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46             bson_init (&bson2);
47             bson_copy_to_excluding_noinit (&bson, &bson2, "b", NULL);
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49             str = bson_as_json (&bson2, NULL);
50             /* Prints
51              * { "a" : 1, "c" : 2 }
52              */
53             printf ("%s\n", str);
54             bson_free (str);
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56             bson_destroy (&bson);
57             bson_destroy (&bson2);
58          }
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AUTHOR

61       MongoDB, Inc
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64       2017-present, MongoDB, Inc
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691.20.0                           Nov 18, 2021 BSON_COPY_TO_EXCLUDING_NOINIT(3)
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