Function eosio_cdt_sys::db_idx256_lowerbound

pub unsafe extern "C" fn db_idx256_lowerbound(
    code: capi_name, 
    scope: u64, 
    table: capi_name, 
    data: *mut uint128_t, 
    data_len: u32, 
    primary: *mut u64
) -> i32

Find the table row in a secondary 256-bit index table that matches the lowerbound condition for a given secondary key The table row that matches the lowerbound condition is the first table row in the table with the lowest secondary key that is >= the given key (uses lexicographical ordering on the 256-bit keys)

@brief Find the table row in a secondary 256-bit index table that matches the lowerbound condition for a given secondary key @param code - The name of the owner of the table @param scope - The scope where the table resides @param table - The table name @param data - Pointer to the secondary key data (which is stored as an array of 2 uint128_t integers) first used to determine the lowerbound and which is then replaced with the secondary key of the found table row @param data_len - Must be set to 2 @param primary - Pointer to a uint64_t variable which will have its value set to the primary key of the found table row @post If and only if the table row is found, the buffer pointed to by data will be filled with the secondary key of the found table row @post If and only if the table row is found, *primary will be replaced with the primary key of the found table row @return iterator to the found table row or the end iterator of the table if the table row could not be found