The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/Devil/workplace/test/test

Breakpoint 1, main () at main.cpp:14
(gdb) p a
$9 = {
  d = 2.1716590483608889e-305,
  a = 4.01951477e-34,
  b = 134517456,
  c = 75 'K'
}
(gdb) p &a.d
$10 = (double *) 0xbffff6c8
(gdb) p &a.a
$11 = (float *) 0xbffff6d0
(gdb) p &a.b
$12 = (int *) 0xbffff6d4
(gdb) p &a.c
$13 = 0xbffff6d8 "K\222\005\b\364\177\256"
(gdb) s
20
(gdb) l
10   
11    int main()
12    {
13        A5 a;
14        std::cout<<sizeof(a)<<std::endl;
15        return 0;
16    }
(gdb)