Conditional jump or move depends on uninitialised value(s)
   at 0x........: test (cdsg.c:17)
   by 0x........: op1_undefined (cdsg.c:35)
   by 0x........: main (cdsg.c:60)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: test (cdsg.c:17)
   by 0x........: op2_undefined (cdsg.c:45)
   by 0x........: main (cdsg.c:61)