1BSON_APPEND_UNDEFINED(3) libbson BSON_APPEND_UNDEFINED(3)
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6 bson_append_undefined - bson_append_undefined()
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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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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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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
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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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34 MongoDB, Inc
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37 2017-present, MongoDB, Inc
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421.16.2 Feb 25, 2020 BSON_APPEND_UNDEFINED(3)