Provided by: libbson-doc_1.26.0-1.1ubuntu2_all 

SYNOPSIS
#define BSON_APPEND_DOCUMENT_BEGIN(b, key, child) \
bson_append_document_begin (b, key, (int) strlen (key), child)
bool
bson_append_document_begin (bson_t *bson,
const char *key,
int key_length,
bson_t *child);
PARAMETERS
• bson: A bson_t.
• key: An ASCII C string containing the name of the field.
• key_length: The length of key in bytes, or -1 to determine the length with strlen().
• child: An uninitialized bson_t to be initialized as the sub-document.
DESCRIPTION
The bson_append_document_begin() function shall begin appending a sub-document to bson. Use child to add
fields to the sub-document. When completed, call bson_append_document_end() to complete the element.
child MUST be an uninitialized bson_t to avoid leaking memory.
RETURNS
Returns true if the operation was applied successfully. The function will fail if bson must grow larger
than INT32_MAX.
AUTHOR
MongoDB, Inc
COPYRIGHT
2017-present, MongoDB, Inc
1.26.0 Mar 31, 2024 BSON_APPEND_DOCUMENT_BEGIN(3)