sizeof( ) doesn't add up!
Hi,
I noticed something quirky with getting the size of a structure and comparing that to the sum of its individual parts. The size of the structure is 16 but the sum of the parts total 14. Any explanations? :-)
Regards,
ChuckB
Code:
typedef struct {
unsigned short type; //WORD
unsigned long size; //DWORD
unsigned short reserved1; //WORD
unsigned short reserved2; //WORD
unsigned long offset; //DWORD
} HEADER;
HEADER h;
cout <<"type: " << sizeof(h.type) << endl; //2 bytes
cout <<"size: " << sizeof(h.size) << endl; //4 bytes
cout <<"reserved1: " << sizeof(h.reserved1) << endl; //2 bytes
cout <<"reserved2: " << sizeof(h.reserved2) << endl; //2 bytes
cout <<"offset: " << sizeof(h.offset) << endl; //4 bytes
cout <<"---------------------" << endl;
cout <<"Size of h: " << sizeof(h) << endl << endl;; //16 bytes
cout <<"Size of HEADER: " << sizeof(HEADER) << endl; //16 bytes
