[C] problema allocazione, strutture, stringhe

[clockover]

Postali

[ndakota]

==4980== Memcheck, a memory error detector
==4980== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==4980== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info
==4980== Command: ./main
==4980== 
R
R
R
R
R
R
Autore No gia' presente
R
R
R
A
1 -> 
==4980== Conditional jump or move depends on uninitialised value(s)
==4980==    at 0x804A142: graph_print (graph.c:42)
==4980==    by 0x8048727: main (main.c:40)
==4980== 
A
Articolo 1 gia' presente
A
Autore Alloras inesistente
A
2 -> 
1 -> 
P
==4980== Invalid read of size 4
==4980==    at 0x8049E88: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2508 is 0 bytes inside a block of size 8 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x804933E: destroy_list (list.c:50)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 1
==4980==    at 0x407BD6E: vfprintf (vfprintf.c:1620)
==4980==    by 0x408389F: printf (printf.c:35)
==4980==    by 0x8049E9A: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2540 is 0 bytes inside a block of size 4 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049333: destroy_list (list.c:49)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 1
==4980==    at 0x40A3128: _IO_file_xsputn@@GLIBC_2.1 (fileops.c:1317)
==4980==    by 0x407BC65: vfprintf (vfprintf.c:1620)
==4980==    by 0x408389F: printf (printf.c:35)
==4980==    by 0x8049E9A: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2542 is 2 bytes inside a block of size 4 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049333: destroy_list (list.c:49)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 1
==4980==    at 0x40A313F: _IO_file_xsputn@@GLIBC_2.1 (fileops.c:1317)
==4980==    by 0x407BC65: vfprintf (vfprintf.c:1620)
==4980==    by 0x408389F: printf (printf.c:35)
==4980==    by 0x8049E9A: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2541 is 1 bytes inside a block of size 4 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049333: destroy_list (list.c:49)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 1
==4980==    at 0x40A30B0: _IO_file_xsputn@@GLIBC_2.1 (fileops.c:1349)
==4980==    by 0x407BC65: vfprintf (vfprintf.c:1620)
==4980==    by 0x408389F: printf (printf.c:35)
==4980==    by 0x8049E9A: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2540 is 0 bytes inside a block of size 4 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049333: destroy_list (list.c:49)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 1
==4980==    at 0x40A30BC: _IO_file_xsputn@@GLIBC_2.1 (fileops.c:1348)
==4980==    by 0x407BC65: vfprintf (vfprintf.c:1620)
==4980==    by 0x408389F: printf (printf.c:35)
==4980==    by 0x8049E9A: list_publication_author (util.c:423)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a2542 is 2 bytes inside a block of size 4 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049333: destroy_list (list.c:49)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 4
==4980==    at 0x8049E9E: list_publication_author (util.c:425)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a250c is 4 bytes inside a block of size 8 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x804933E: destroy_list (list.c:50)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
==4980== Invalid read of size 4
==4980==    at 0x8049EC3: list_publication_author (util.c:430)
==4980==    by 0x80487BF: main (main.c:52)
==4980==  Address 0x41a250c is 4 bytes inside a block of size 8 free'd
==4980==    at 0x4025BF0: free (vg_replace_malloc.c:366)
==4980==    by 0x804933E: destroy_list (list.c:50)
==4980==    by 0x8048768: main (main.c:44)
==4980== 
Boh & Icaro
P
Allora & No
Alan Turing
Allora
Boh
gino pino
Icaro
muimuimui
No
Zazza
1
2
==4980== Conditional jump or move depends on uninitialised value(s)
==4980==    at 0x804A196: graph_destroy (graph.c:62)
==4980==    by 0x8048837: main (main.c:74)
==4980== 
==4980== Conditional jump or move depends on uninitialised value(s)
==4980==    at 0x4025BB0: free (vg_replace_malloc.c:366)
==4980==    by 0x8049FDD: destroy_list_g (list_graph.c:51)
==4980==    by 0x804A1A2: graph_destroy (graph.c:68)
==4980==    by 0x8048837: main (main.c:74)
==4980== 
==4980== Conditional jump or move depends on uninitialised value(s)
==4980==    at 0x8049FC6: destroy_list_g (list_graph.c:46)
==4980==    by 0x8049FF3: destroy_list_g (list_graph.c:54)
==4980==    by 0x804A1A2: graph_destroy (graph.c:68)
==4980==    by 0x8048837: main (main.c:74)
==4980== 
==4980== 
==4980== HEAP SUMMARY:
==4980==     in use at exit: 28 bytes in 4 blocks
==4980==   total heap usage: 421 allocs, 417 frees, 2,627 bytes allocated
==4980== 
==4980== 28 (12 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record 3 of 3
==4980==    at 0x4026864: malloc (vg_replace_malloc.c:236)
==4980==    by 0x8049EF9: add_to_list_g (list_graph.c:8)
==4980==    by 0x804A060: graph_vertexinsert (graph.c:21)
==4980==    by 0x8049CF9: add_publication_id (util.c:362)
==4980==    by 0x804871B: main (main.c:39)
==4980== 
==4980== LEAK SUMMARY:
==4980==    definitely lost: 12 bytes in 1 blocks
==4980==    indirectly lost: 16 bytes in 3 blocks
==4980==      possibly lost: 0 bytes in 0 blocks
==4980==    still reachable: 0 bytes in 0 blocks
==4980==         suppressed: 0 bytes in 0 blocks
==4980== 
==4980== For counts of detected and suppressed errors, rerun with: -v
==4980== Use --track-origins=yes to see where uninitialised values come from
==4980== ERROR SUMMARY: 70 errors from 13 contexts (suppressed: 11 from 6)

Tra l'altro, il suo output è corretto xD

[clockover]

Con uno sguardo veloce sembra che tu stia leggendo dei blocchi di memoria liberati con free

[ndakota]

Di sicuro ho errori sulle strutture dati a questo punto o non si riprodurrebbero esponenzialmente

[Floris]

Se hai problemi con allocazione e successiva pulizia della memoria prova ad usare i puntatori smart. Dovrai però passare al C++.

[ndakota]

Niente C++, è da svolgere in ansi C.