Function AddDoubleToValue

pg_documentdb_core/src/io/pgbson_utils.c:870–895

* Adds a double to the current value. * */

 *
 */
static void
AddDoubleToValue(bson_value_t *current, double value)
{
	/* If existing value is decimal128, then needs to convert the value to decimal128 */
	if (current->value_type == BSON_TYPE_DECIMAL128)
	{
		bson_value_t valueBson;
		valueBson.value.v_double = value;
		valueBson.value_type = BSON_TYPE_DOUBLE;

		/* Transform value into decimal128 format */
		valueBson.value.v_decimal128 = GetBsonValueAsDecimal128Quantized(&valueBson);
		valueBson.value_type = BSON_TYPE_DECIMAL128;

		AddDecimal128Numbers(current, &valueBson, current);
	}
	else
	{
		/* We match protocol behavior, which doesn't coerce to decimal128
		 * in case of overflow and just returns infinity which is the same
		 * behavior in C in case of double overflow. */
		double currentValue = BsonValueAsDouble(current);
		current->value_type = BSON_TYPE_DOUBLE;
		current->value.v_double = currentValue + value;
	}
}


/**