GALANTHUS / ABI FUNCTION REFERENCE
gln_get_transaction_currency
Declared in <galanthus/c_api/gln_capi.h>.
GLN_API const char* GLN_CALL gln_get_transaction_currency(const gln_transaction_t* in_transaction);
Purpose
Returns the transaction currency code when available.
Return
Returns the currency code associated with the transaction amount. Read it together with gln_get_transaction_amount; currency is exposed through this accessor when materialized separately. Returns NULL when the optional field is not materialized or when the input handle is NULL.
| Type | Nullability | Ownership |
|---|---|---|
const char* | nullable | borrowed |
Parameters
| Name | Direction | Type | Nullability | Ownership |
|---|---|---|---|---|
in_transaction | input | const gln_transaction_t* | nullable | borrowed |
Amount Semantics
Returns the currency code associated with the transaction amount. Read it together with gln_get_transaction_amount; currency is exposed through this accessor when materialized separately.
NULL means the source row did not provide a currency for the materialized transaction amount.
Notes
Passing NULL for in_transaction is allowed and returns NULL.
NULL means the provider did not supply this optional field for the row.
The returned pointer is borrowed from the owning backend result envelope and becomes invalid when that envelope is destroyed.