Send a simple question to test your understanding of the details of the C language

I am sending a simple question to test everyone's understanding of the details of the C language-General Linux technology-Linux programming and kernel information. The following is a detailed description. What are the output results of the following code after compilation and running? Same. or diff? The answer is not written in the post. you 'd better run it. if you find that the result is inconsistent with your previous inference, you 'd better add a few breakpoints to see what happened in the memory...

# Include
# Include
# Include

/* On a 32-bit machine */

Typedef struct
{
Char CR;
Long lVal;
} TDATA_S;

Int main ()
{
TDATA_S stDat1, stDat2;

Memset (& stDat1, 0, sizeof (TDATA_S ));
Stdat2.cr = 0;
StDat2.lVal = 0;

If (memcmp (& stDat1, & stDat2, sizeof (TDATA_S) = 0)
{
Printf ("same. \ n ");
}
Else
{
Printf ("diff. \ n ");
}

Return 0;
}