How do i right array of structure using c++

[TEH BABA]

InventoryFileSystem.open("Inventory.dat", ios:ut | ios::binary);

while(intWritingIndex < 10)
{
// Move back to the beginning of this record's position.
InventoryFileSystem.seekp(intWritingIndex * sizeof(record), ios::beg);

// Write the new record over the current record.
InventoryFileSystem.write(reinterpret_cast<char *>(&record),
sizeof(record));

intWritingIndex++;
}

InventoryFileSystem.close();

 

[Lindley]

That will only work if record is of a plain-old-data type with no pointer members; and even then the resulting file might not be binary-compatible with the same program built on other compilers or with different compile settings. For a more robust approach you'll need to write functions to serialize and deserialize the structure. Often this is done in an overload of operator >> and operator <<.

 

[Partsking]

^What he said.

 

[Hermiod]

Yeah, this looks like you're just struct dumping. Don't do that.