DOKK / manpages / debian 10 / libbson-doc / bson_iter_binary.3.en
BSON_ITER_BINARY(3) Libbson BSON_ITER_BINARY(3)

bson_iter_binary - bson_iter_binary()

#define BSON_ITER_HOLDS_BINARY(iter) \


   (bson_iter_type ((iter)) == BSON_TYPE_BINARY)
void
bson_iter_binary (const bson_iter_t *iter,


                  bson_subtype_t *subtype,


                  uint32_t *binary_len,


                  const uint8_t **binary);


  • iter: A bson_iter_t.
  • subtype: A location for a bson_subtype_t or NULL.
  • binary_len: A location for the length of binary.
  • binary: A location for a pointer to the immutable buffer.

This function shall return the binary data of a BSON_TYPE_BINARY element. It is a programming error to call this function on a field that is not of type BSON_TYPE_BINARY. You can check this with the BSON_ITER_HOLDS_BINARY() macro or bson_iter_type().

The buffer that binary points to is only valid until the iterator's bson_t is modified or freed.

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February 23, 2019 1.14.0