# bson_subtype_t

## Binary Field Subtype

## Synopsis

    #include <bson.h>

    typedef enum
    {
       BSON_SUBTYPE_BINARY            = 0x00,
       BSON_SUBTYPE_FUNCTION          = 0x01,
       BSON_SUBTYPE_BINARY_DEPRECATED = 0x02,
       BSON_SUBTYPE_UUID_DEPRECATED   = 0x03,
       BSON_SUBTYPE_UUID              = 0x04,
       BSON_SUBTYPE_MD5               = 0x05,
       BSON_SUBTYPE_USER              = 0x80,
    } bson_subtype_t;

## Description

This enumeration contains the various subtypes that may be used in a binary field. See http://bsonspec.org for more information.

## Example

###

    bson_t doc = BSON_INITIALIZER;

    BSON_APPEND_BINARY (&doc, "binary", BSON_SUBTYPE_BINARY, data, data_len);