BSON_ITER_INIT_FROM_DATA(3) libbson BSON_ITER_INIT_FROM_DATA(3) SYNOPSIS bool bson_iter_init_from_data (bson_iter_t *iter, const uint8_t *data, size_t length); PARAMETERS * iter: A bson_iter_t. * data: A buffer to initialize with. * length: The length of data in bytes. DESCRIPTION The bson_iter_init_from_data() function shall initialize iter to iterate upon the buffer data, which must contain a BSON document. Upon initializa- tion, iter is placed before the first element. Callers must call bson_iter_next(), bson_iter_find(), or bson_iter_find_case() to advance to an element. RETURNS Returns true if the iter was successfully initialized. EXAMPLE static void print_doc_id (const uint8_t *data, size_t length) { bson_iter_t iter; bson_oid_t oid; char oidstr[25]; if (bson_iter_init_from_data (&iter, data, length) && bson_iter_find (&iter, "_id") && BSON_ITER_HOLDS_OID (&iter)) { bson_iter_oid (&iter, &oid); bson_oid_to_string (&oid, oidstr); printf ("%s\n", oidstr); } else { printf ("Document is missing _id.\n"); } } AUTHOR MongoDB, Inc COPYRIGHT 2009-present, MongoDB, Inc. 1.30.8 Aug 27, 2026 BSON_ITER_INIT_FROM_DATA(3)
SYNOPSIS | PARAMETERS | DESCRIPTION | RETURNS | EXAMPLE | AUTHOR | COPYRIGHT
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