[SOLVED] quint16 weirdness

[pdoria]

Or it's me who's finally gone bananas!

I have this piece of (testing) code:

#include <iostream>
#include <stdio.h>
 
#include <QCoreApplication>
 
int main(int argc, char *argv[])
{
      QCoreApplication app(argc, argv);
 
	unsigned int i;
 
typedef struct
{
	quint16 response_id;
	quint32 status_change_id;
	bool result_code;		// true if sucessful, false otherwise
	quint8 reserved[3]; /* Set to 0 */
} receipt_data_type;
 
 
	receipt_data_type *receipt = new receipt_data_type;
	receipt->response_id		= 0x0812;
	receipt->status_change_id	= 1;
	receipt->result_code 		= true;
	receipt->reserved[0]		= 0;
	receipt->reserved[1]		= 0;
	receipt->reserved[2]		= 0;
 
 
	char * p = (char *) receipt;
	for (i=0; i < sizeof(receipt_data_type); i++) {
		printf("%02X\r\n", *p++);
	}
	printf("\r\nAll members of receipt (total size:%d ) \r\n", sizeof(receipt_data_type) );
	printf("response_id: %02X (size: %d )\r\n",receipt->response_id, sizeof(receipt->response_id) );
	printf("status_change_id: %02X (size: %d )\r\n",receipt->status_change_id, sizeof(receipt->status_change_id));
	printf("result_code: %02X (size: %d )\r\n",receipt->result_code, sizeof(receipt->result_code));
	printf("reserved[0]: %02X\r\n",receipt->reserved[0]);
	printf("reserved[1]: %02X\r\n",receipt->reserved[1]);
	printf("reserved[2]: %02X\r\n",receipt->reserved[2]);
 
	delete receipt;
 
      return 0;
}

#include <iostream>
#include <stdio.h>

#include <QCoreApplication>

int main(int argc, char *argv[])
{
      QCoreApplication app(argc, argv);

	unsigned int i;

typedef struct
{
	quint16 response_id;
	quint32 status_change_id;
	bool result_code;		// true if sucessful, false otherwise
	quint8 reserved[3]; /* Set to 0 */
} receipt_data_type;


	receipt_data_type *receipt = new receipt_data_type;
	receipt->response_id		= 0x0812;
	receipt->status_change_id	= 1;
	receipt->result_code 		= true;
	receipt->reserved[0]		= 0;
	receipt->reserved[1]		= 0;
	receipt->reserved[2]		= 0;


	char * p = (char *) receipt;
	for (i=0; i < sizeof(receipt_data_type); i++) {
		printf("%02X\r\n", *p++);
	}
	printf("\r\nAll members of receipt (total size:%d ) \r\n", sizeof(receipt_data_type) );
	printf("response_id: %02X (size: %d )\r\n",receipt->response_id, sizeof(receipt->response_id) );
	printf("status_change_id: %02X (size: %d )\r\n",receipt->status_change_id, sizeof(receipt->status_change_id));
	printf("result_code: %02X (size: %d )\r\n",receipt->result_code, sizeof(receipt->result_code));
	printf("reserved[0]: %02X\r\n",receipt->reserved[0]);
	printf("reserved[1]: %02X\r\n",receipt->reserved[1]);
	printf("reserved[2]: %02X\r\n",receipt->reserved[2]);

	delete receipt;

      return 0;
}

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Expected results:
sizeof(receipt_data_type) == 10

Actual results:
sizeof(receipt_data_type) == 12

and what's the actual ouput:
12
08
FFFFFFCD
09 these two bold bytes shouldn't be here!
01
00
00
00
01
00
00
00

All members of receipt (total size:12 )
response_id: 812 (size: 2 )
status_change_id: 01 (size: 4 )
result_code: 01 (size: 1 )
reserved[0]: 00
reserved[1]: 00
reserved[2]: 00


Now the weird thing is that if I take out the response_id from the structure it reports the correct size (8).

What in the name of God am I missing?!

Thanks in advance,
Pedro Doria Meunier.