Breakpoint 1 at 0x........: file t.c, line 113.
Breakpoint 2 at 0x........: file t.c, line 118.
Continuing.
Breakpoint 1, main (argc=1, argv=0x........) at t.c:113
113	  breakme(__LINE__); //break1
breakme (line=113) at t.c:101
101	   if (line > 1000)
old_pc has changed after step
103	}
old_pc has changed after step
main (argc=1, argv=0x........) at t.c:114
114	  for (i = len-1; i >= 0; i=i-2)
old_pc has changed after step
115	     undefined[i] = undef;
$1 = void
$2 = "undefined"
$3 = 8
114	  for (i = len-1; i >= 0; i=i-2)
old_pc has changed after step
115	     undefined[i] = undef;
old_pc has changed after step
114	  for (i = len-1; i >= 0; i=i-2)
$4 = void
$5 = "undefi?e?"
$6 = 6
115	     undefined[i] = undef;
$7 = void
$8 = "undefi?e?"
$9 = 4
114	  for (i = len-1; i >= 0; i=i-2)
$10 = void
$11 = "unde?i?e?"
$12 = 4
$13 = 1
$14 = void
Continuing.
Breakpoint 2, main (argc=1, argv=0x........) at t.c:118
118	  breakme(__LINE__); //break2
Breakpoint 3 at 0x........: file t.c, line 120.
Continuing.
Breakpoint 3, main (argc=1, argv=0x........) at t.c:120
120	  if (argc > 1)
Delete all breakpoints? (y or n) [answered Y; input not from terminal]
Continuing.
Program received signal SIGTRAP, Trace/breakpoint trap.
0x........ in make_error (s=0x........ "called from level") at t.c:41
41	  if (int_und == 0)
44	     printf ("%s int_und is not zero\n", s);
old_pc has changed after step
Continuing.
Program received signal SIGTRAP, Trace/breakpoint trap.
0x........ in make_error (s=0x........ "called from main") at t.c:41
41	  if (int_und == 0)