Conditional jump or move depends on uninitialised value(s)
   at 0x........: test (cdsg.c:21)
   by 0x........: op1_undefined (cdsg.c:39)
   by 0x........: main (cdsg.c:64)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: test (cdsg.c:21)
   by 0x........: op2_undefined (cdsg.c:49)
   by 0x........: main (cdsg.c:65)