1BSON_APPEND_UNDEFINED(3)            libbson           BSON_APPEND_UNDEFINED(3)
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NAME

6       bson_append_undefined - bson_append_undefined()
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SYNOPSIS

9          #define BSON_APPEND_UNDEFINED(b, key) \
10             bson_append_undefined (b, key, (int) strlen (key))
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12          bool
13          bson_append_undefined (bson_t *bson, const char *key, int key_length);
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PARAMETERS

16       • bson: A bson_t.
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18       • key: An ASCII C string containing the name of the field.
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20       • key_length: The length of key in bytes, or -1 to determine the length
21         with strlen().
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DESCRIPTION

24       The bson_append_undefined() function shall append a new element to bson
25       of  type  BSON_TYPE_UNDEFINED.  Undefined is common in Javascript. How‐
26       ever, this element type is deprecated and should not  be  used  in  new
27       code.
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RETURNS

30       Returns  true  if  the operation was applied successfully. The function
31       will fail if appending the value grows bson larger than INT32_MAX.
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AUTHOR

34       MongoDB, Inc
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37       2017-present, MongoDB, Inc
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421.20.0                           Nov 18, 2021         BSON_APPEND_UNDEFINED(3)
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