C++ isim cozumlemesi

"using nm to extract the symbol table from a sample program named initcell produces the following output:"

nm intcell
0000200c D _NXArgc
00002008 D _NXArgv
00001e76 s __GLOBAL__I_main
00001e1e s __Z41__static_initialization_and_destruction_0ii
00001e0c T __ZN7IntCell5writeEi
00001dd8 T __ZN7IntCellC1ERKS_
00001d88 T __ZN7IntCellC1Ei
00001da8 T __ZN7IntCellaSERKS_
00001dfc T __ZNK7IntCell4readEv
U __ZNSolsEPFRSoS_E
U __ZNSolsEi
U __ZNSt8ios_base4InitC1Ev
U __ZNSt8ios_base4InitD1Ev
U __ZSt4cout
U __ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_
00002034 b __ZSt8__ioinit
U __Znwm
U ___cxa_atexit
U ___gxx_personality_v0
00002000 D ___progname
00001d66 t ___tcf_0
00001c4c t __dyld_func_lookup
00001000 A __mh_execute_header
00002004 D _environ
U _exit
00001c5a T _main
00002010 d dyld__mach_header
00001c38 t dyld_stub_binding_helper
00001bf8 T start