Добрый день !
MS Visual Studio 2008

В тривиальном коде чтото ломает стек

    typedef struct send_data 
    {  
        char p;  
        char p1[4];  
        char p2;  
        char p3[2];  
        char p4[3];  
        char p5[20];  
        char p6[10]; 
        char p7[8];
        char p8[2]; 
        char p9[3];
        char p10[12];
        char p11[10];
        char p12[2];
    }send_data;
   


int _tmain(int argc, _TCHAR* argv[])
{
    
    send_data  send_block;
    //
    send_block.p='0';  
    strcpy(send_block.p1,"0001");  
    send_block.p2='9';  
    strcpy( send_block.p3,"03");  
    strcpy(send_block.p4, "000");
    strcpy(send_block.p5,"12300000000000000000");  
    strcpy(send_block.p6,"0000012345"); 
    strcpy(send_block.p7,"72300001");
    strcpy(send_block.p8,"71"); 
    strcpy(send_block.p9,"888");
    strcpy(send_block.p10,"000033300000");
        strcpy(send_block.p11,"0000000000");
    // strcpy(send_block.p12n, "00"); <- если раскоментировать то  по выходу из программы возникает 
        //                               ошибка:Run-Time Check Failure #2 -
        //                         Stack around the variable 'send_block' was corrupted. 

   printf ("%d \n", sizeof(send_block)); 

}