Provided by: libmongoc-doc_1.9.2+dfsg-1build1_all 

NAME
mongoc_collection_ensure_index - mongoc_collection_ensure_index()
SYNOPSIS
bool
mongoc_collection_ensure_index (mongoc_collection_t *collection,
const bson_t *keys,
const mongoc_index_opt_t *opt,
bson_error_t *error)
BSON_GNUC_DEPRECATED;
DEPRECATED
This function is deprecated and should not be used in new code. See create-indexes.
PARAMETERS
• collection: A mongoc_collection_t.
• keys: A bson_t.
• opt: A mongoc_index_opt_t.
• error: An optional location for a bson_error_t or NULL.
ERRORS
Errors are propagated via the error parameter.
AUTHOR
MongoDB, Inc
COPYRIGHT
2018, MongoDB, Inc
1.9.3-dev Feb 05, 2018 MONGOC_COLLECTION_ENSURE_INDEX(3)