bson_append_undefined()¶
Synopsis¶
#define BSON_APPEND_UNDEFINED(b, key) \
bson_append_undefined (b, key, (int) strlen (key))
bool
bson_append_undefined (bson_t *bson, const char *key, int key_length);
Parameters¶
bson
: A bson_t.key
: An ASCII C string containing the name of the field.key_length
: The length ofkey
in bytes, or -1 to determine the length withstrlen()
.
Description¶
The bson_append_undefined() function shall append a new element to bson
of type BSON_TYPE_UNDEFINED. Undefined is common in Javascript. However, this element type is deprecated and should not be used in new code.
Returns¶
Returns true
if the operation was applied successfully. The function will fail if appending the value grows bson
larger than INT32_MAX.