Provided by: libbson-doc_2.2.1-1_all 

SYNOPSIS
double
bson_iter_as_double (const bson_iter_t *iter);
PARAMETERS
• iter: A bson_iter_t <>.
DESCRIPTION
Fetches the current field as if it were a double.
bson_iter_as_double() will cast the following types to double
• BSON_TYPE_BOOL
• BSON_TYPE_DOUBLE
• BSON_TYPE_INT32
• BSON_TYPE_INT64
Any other value will return 0.
RETURNS
The value type casted to double.
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025 BSON_ITER_AS_DOUBLE(3)