爲什麼我在這裏得到一個SIGABRT（動態分配）？

Question

也許有人可以幫助我。在我的項目中，我正在使用具有動態分配的鏈接列表。我不知道爲什麼，但它只是不工作:(

void insertLast (TList *list, wchar_t *string) { 
    TWord *newWord; 
    if ((newWord = malloc (sizeof(TWord))) == NULL) 
     exit (EXIT_FAILURE); 
    newWord->prev = list->tail; 
    newWord->next = NULL; 
    newWord->word = malloc(wcslen(string) * sizeof(wchar_t)); 
    wcscpy(newWord->word, string); 
    if (list->tail != NULL) { 
     list->tail->next = newWord; 
    } else { 
     list->head = newWord; 
    } 
    list->tail = newWord; 
} 

當我嘗試編譯，我只是看到

lab: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr) (((char  &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >= (unsigned long)((((__builtin_offsetof (struct malloc_chunk, fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) - 1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) == 0)' failed. 

中止

也許有人可以告訴我爲什麼有這樣的煩惱謝謝:)

Answer 1

這裏有一個問題：

newWord->word = malloc(wcslen(string) * sizeof(wchar_t)); 
wcscpy(newWord->word, string); 

您忘記爲終止空字符分配空間。

newWord->word = malloc((wcslen(string) + 1) * sizeof(wchar_t));