sHi!

I have a very strange problem with the behaviour of the sizeof command. I
have tested it in vc6,vc 2001 and vc 2003. The problem is quite simple.

When I made a sizeof to the next struct, it returns that the size is 40
instead of 38. I consider that a short is 2 bytes, float 4 bytes, unsigned
long 4 byte, unsigned short 2 bytes. If i add all the size of the fields it
must be 38 but sizeof says that is 40.

The struct is the next:

typedef struct
{
short est;   
short numbe1;   
float dst;   
float Line;           
unsigned long tmp;
float tmp1;            
float tmp2;       
unsigned long tck;   
unsigned long tl;
unsigned short  dp;
unsigned short  ldact;   
unsigned short  lnc;
}test;

If I remove one unsigned short field, the size change to 36, but if made
size of (unsigned short) it return 2.

This is the other "crazy" struct:

typedef struct
{
short est;   
short numbe1;   
float dst;   
float Line;           
unsigned long tmp;
float tmp1;            
float tmp2;       
unsigned long tck;   
unsigned long tl;
unsigned short  dp;
unsigned short  ldact;   
}test;

I'm getting crazy, any idea??

Thank you very much for your help.

The structure is the next: